Anda menyukai Photoshop? Sudah pernah menggunakan Photoshop CS4? Photoshop CS4 leverages the graphics display card's GPU, instead of the computer's main processor (the CPU) to speed its screen redraw. For Photoshop to access the GPU, your display card must contain a GPU that supports OpenGL and has enough RAM to support Photoshop functions--at least 128 MB of RAM--and a display driver that supports OpenGL 2.0 and Shader Model 3.0. Note: For definitions of these terms, please see the Glossary. If you have all of the above in place, then Photoshop turns on the Enable OpenGL Drawing option under Photoshop > Preferences > Performance (Mac OS) or Edit > Preferences > Performance (Windows). If this option is not enabled when you open Photoshop, then check your display card and driver against the list of display cards supported in Photoshop CS4. See the Supported GPUs and Operating Systems section below for further information. If your display card is on the list of supported cards, then check the manufacturer's site to determine if you have the most updated driver. See the Updating GPU Drivers section below. Problems can occur if there are incompatibilities among Photoshop and the display components that work together to access the GPU. You might experience issues such as artifacts, errors, crashes, or Photoshop closing without an error. If any of these occur, then see the following sections in this document: Updating GPU Drivers, Troubleshooting, Known Issues and the FAQ. Below is a list of the Photoshop CS4 and Bridge CS4 features that are accelerated by a GPU. To read more about these features, see "GPU accelerated features in Photoshop and Bridge CS4" (TechNote kb405745). GPU features in Bridge CS4 are: The display cards that were tested and are supported in Photoshop CS4 are listed in "List of tested graphics display cards in Photoshop CS4" (TechNote kb405711). Operating system GPU support and limitations: If you experience odd redrawing, lines or garbage pixels (artifacts) in your images, errors, crashes, or if Photoshop closes without an error, then verify you have the most recent driver for your display card installed. Display card manufacturers update many of their drivers frequently to keep up with new operating system and program features. To determine if the problem is caused by an incompatibility or bug with the display driver, display card, or Photoshop, turn off Enable OpenGL Drawing under Photoshop > Preferences > Performance (Mac OS) or Edit > Preferences > Performance (Windows) and perform the task that caused the symptom. If the problem does not recur, then the first step to take is to update the display driver. If the problem does recur, the check the Troubleshooting section below. If a driver is released that fixes issues you've been having, then install the driver, and then choose Photoshop > Preferences > Performance (Mac OS) or Edit > Preferences > Performance (Windows) and ensure that Enable OpenGL Drawing is available and selected. In Windows XP: In Windows Vista: In Mac OS: Once you know the version of the driver on your computer, you can go to the display card manufacturer's website (Windows) or the Apple website (Mac OS) and find out of there's a more recent driver (Windows) or operating system update (Mac OS). Driver updates will have installation instructions with the download, or the instructions will be downloaded with the driver. For NVIDIA display cards, you can find drivers on the NVIDIA website at www.nvidia.com/Download/index.aspx?lang=en-us. You may have the option of installing a beta version of a driver. This can occur when the manufacturer is working on a new version of the driver that solves a particular issue. If that issue is affecting you, then you might want to use the beta driver to solve the problem. In other cases, the manufacturer may have released the version of a driver for one geographic region, and is in the process of updating it for all Geos, giving customers in those Geos the option of trying a beta version of that driver. If you use any beta software, including display drivers, you should set a restore point in your operating system before you install the beta driver or application. Usually you can just uninstall the beta driver or application to get to the former state, or roll back to a previous version of a driver, but setting a restore point is always a good idea to avoid lost work or time. The GPUs in most notebook computers are permanently installed onto the motherboard and therefore are difficult to replace, and many of the GPUs used in notebooks are not powerful enough to run the OpenGL functions. Sometimes they require special versions of drivers to be written. Contact the display card manufacture, the chip set manufacturer, or the notebook manufacturer for newer drivers or other options. NOTE: NVIDIA has laptop-compatible drivers on their website (http://www.nvidia.com/object/notebook_drivers.html). Perform the troubleshooting steps in this section in order to try to resolve your problem. If you experiences any of the symptoms in the Known Issues section below, or any others that might be related to your display card driver, turn off Enable OpenGL Drawing under Photoshop > Preferences > Performance (Mac OS) or Edit > Preferences > Performance (Windows), and then perform the same function. If the problem does not recur, then update your display driver, and see the specific issue for any further information. If the problem does recur, the problem is probably not the fault of the display driver. The next troubleshooting step is to reset the Preferences by holding down the Shift + Option + Command keys (Mac OS) or the Shift + Ctrl + Alt keys (Windows) immediately after you restart Photoshop. Click Yes when asked if you want to Delete the Adobe Photoshop Settings File, and retry the function that caused the problem. For more information about deleting the Photoshop preferences file, please see "functions, names, and locations of preferences files in Photoshop CS4" (TechNote kb405012). If Photoshop crashes or disappears because of a GPU problem, it turns off Enable OpenGL Drawing and it writes a flag file in the preferences folder, called GPUinitcrashed. The next time you open Photoshop, this warning displays: "Photoshop has encountered a problem with the display driver, and has temporarily disabled GPU enhancements. Check the video card manufacturer's website for the latest software. GPU enhancements can be enabled in the Performance panel of Preferences." Download the most recent version of your display driver from the display card manufacturer's site (Windows) or check to see if there's an operating system update (Mac OS). Important: If you turn on Enable OpenGL Drawing before you update your driver, then Photoshop uses the old display driver again. If the driver wasn't updated, then Photoshop fails again. If you do not turn on Enable OpenGL Drawing, then the GPU won't be accessed and Photoshop does not fail. 4. If you've set your Cache Level to less than the default, reset it to the default of 4. Cache levels of less than 4 can impact GPU performance. 5. Deselect all Advanced Settings and restart Photoshop. If any Advanced Settings are turned off when you start Photoshop, and you subsequently turn them on, you may be asking your display card to perform functions it wasn't designed for, and Photoshop responds slowly. If you turned on any Advanced Setting, and experience GPU problems, turn them off. You can test which advanced setting(s) causes the slowdown by checking only one Advanced Setting at a time, restarting Photoshop, working in the application, and noting if the slowdown continues. 6. Move all your image windows to your primary monitor, if you use one (Windows XP only). There are known issues with some display drivers when using dual monitors in Windows XP. See the Known Issues section of this document for issues specific to your operating system or GPU. See "Disable Windows Aero (Windows Vista)" (TechNote kb404886) for details. There are two extra GPU plug-ins that might help you if your GPU is older and you have trouble starting Photoshop or you cannot use the OpenGL features. These two plug-ins are explained in "Crashes occur, Photoshop CS4 won't open, or some features are slow and OpenGL is unavailable" (TechNote kb405064). Disclaimer: Adobe doesn't support these Photoshop CS4 GPU plug-ins and provides this information and the procedures to use them as a courtesy only. If you cannot resolve your issue with the contents of this document, then there there might be another cause to a problem you are experiencing. For additional Photoshop troubleshooting, see the following general troubleshooting tech docs: After Photoshop CS4 shipped, a problem was found that caused a variety of slowdowns related to GPU functionality, in Windows XP and Vista. This issue was fixed in Photoshop CS4 11.0.1. If your brush performance lags, you may have experienced another issue that is fixed in Photoshop 11.0.1. If you think you may have experienced either of these issues, please update to 11.0.1, which can be found on the download site. Issue: You have a GPU-enabled display card, but the Advanced Drawing option is dimmed or unavailable. Solution: Check for an updated display driver, or your card doesn't have enough video RAM to support the advanced drawing functions. We require 512 MB RAM for Advanced Drawing to be enabled. Issue: Error: "Could not complete your request because it only works with OpenGL document windows" occurs when you select the Rotate View tool. Solution: Do one of the following: Issue: When redrawing the screen, areas of the image are drawn in low resolution before they are drawn as high resolution. Reason: This is normal redrawing in Photoshop that usually is too fast to see. Solution: A faster display card will not have this problem. Issue: The transform bounding box is difficult to see. Solution: Click on a corner box of the bounding box, and the bounding box becomes easier to see. Display card: All Display card: All Display card: NVIDIA GeForce 9800 GTX Issue: When you open numerous (around 30) images and you are using dual monitors, Photoshop stops using the GPU, and may crash. Solution: Do these solutions in the order listed. Issue: Photoshop redraws the display by drawing black squares or tiles. Reason: You may have run out of memory for the GPU on your display card. Windows XP cannot virtualize video RAM, so if you use up your video RAM, Photoshop can no longer draw the image, and it substitutes black tiles. The more RAM on the display card, the less often you'll have problems like this. Solution: Turn off any other applications that use the GPU while you are using Photoshop CS4, or work with fewer image windows open in Photoshop. Display cards: All Display card: All ATI cards Issue: Images flicker when you drag them. Solution: Turn off Enable OpenGL Drawing. Display card: NVIDIA Issue: Error: "Driver components mis-match. Exit is the only option." occurs when you open Photoshop CS4. Detail: When you check your display card information, the name of the display card includes: "Microsoft Corporation - WDDM). Solution: Install the latest display driver provided by your display card manufacturer. The Microsoft Corporation - WDDM means you are using the Microsoft version of the display driver, not an updated driver provided by the manufacturer. Display cards: Various ATI cards and drivers Display card: ATI Radeon HD 2600 XT Display card: NVIDIA GeForce 8800 GTX Display card: ATI Radeon XRad1600 Issue: When you move a rotated image, the image unrotates to its original orientation during the move, but returns to correct rotation when you stop dragging it. Solution: None, this is as designed. Issue: At maximum zoom, the pixel grid and guides are slightly off from the ruler markings. Detail: This occurs only with Intel Macs when using European language versions of Mac OS and Photoshop. Solution: Turn off Enable OpenGL Drawing while working with grids and guides. Issue: Error: "Could not complete the Open command because there is not enough memory (RAM)" occurs when opening approximately 500MB in files. Solution 1: Choose Windows, and uncheck Application Frame. Solution 2: Open fewer image windows. Additional Information: This error may occur if Enable OpenGL Drawing is off as well. Display card: ATI 3870 for Mac Pro Display card: NVIDIA GeForce 7300GT Issue: The cross hairs in the clone tool's sampling indicator do not display. Solution: Turn off Enable OpenGL Drawing. Display card: NVIDIA Geforce 7300GT Display card: NVIDIA GeForce 7300GT Issue: Photoshop freezes when you zoom in on an image and try to move the image. Solution: Check for an update display driver, or turn off Enable OpenGL Drawing. Display card: NIVIDA GeForce 7300GT Issue: On 3D models, paint does not preview or incompletely previews until you release the mouse button. Solution: Turn off the 3D Interaction Acceleration option by choosing Photoshop > Preferences > Performance > Advanced Settings. Q. Photoshop crashes when I open it, what should I do? A. Photoshop turns off Enable OpenGL Drawing when it crashes with a GPU-related problem upon opening. Update your display driver, and try opening Photoshop again, or restart Photoshop without turning Enable OpenGL Drawing on. Q. When I open Photoshop, I get a warning that Photoshop crashed due to my GPU, what should I do? A. When you get this message, Photoshop has turned off OpenGL. Update your display driver to the most recent version, and after it's installed, turn on Enable OpenGL Drawing. If you get the message again, the new driver did not solve the incompatibility. Keep Enable OpenGL Drawing turned off until you can get a more updated driver. Q. My image display is corrupted, what should I do? A. Update your display driver, or if there is no updated driver, turn Enable OpenGL Drawing off. Q. My image is black, what should I do? A. Update your display driver, reduce the number of image windows that are open at any given time in Photoshop, and close any other applications that use the GPU. Q. How do I report a problem? A. You can report problems or make feature requests by choosing the Send Feedback link at the very bottom of the Photoshop product page on the Adobe website at www.adobe.com/products/photoshop/index.html. You can contact technical support by going to the Adobe support website at www.adobe.com/support. Q. My display card isn't on the list of supported cards, but a new driver was just released. How can I get Photoshop to recognize the new driver and the display card? A. Although we keep a list of the cards we tested, and these are recommended because we tested with them, cards that are not on that list might work fine. When Photoshop opens, it checks the display card, to determine if the card won't work correctly with Photoshop, Enable OpenGL Drawing is disabled. The list of supported cards is in the TechNote "List of tested graphics display cards in Photoshop CS4" (TechNote kb405711). To turn on OpenGL on an unsupported card, you need to install the AllowOldGPUs plug-in. For more information on this plug-in, please see "Crashes occur, Photoshop CS4 won't open, or some features are slow and OpenGL is unavailable" (TechNote kb405064). Note that although we make this plug-in available to you, we do not recommend its use, and it is not supported. Q. My display card isn't on the list of supported cards, but it's in the same series of a supported card. Will my display card work? A. Most likely it will work. It's impossible to test every combination of cards on the market, so we focused on the most popular cards. Cards from the same series should work without a problem. Q. What are all those Advanced Settings options and what do they mean? A. Advanced Settings options: If you have a problem with your display, then you can change one of these options at a time and perform the function that caused the display issue to provide an idea of where the problem lies. Q. How much RAM do I have on my display card? A. See the section above on Updating GPU Drivers to determine the amount of RAM on your card. Q. How much video RAM can Photoshop take advantage of? A. Photoshop is limited by OpenGL itself on the amount of video RAM it can access. Photoshop can access approximately 500-700 MB of video RAM. 3D, a separate feature from OpenGL, allocates its own GPU resources, and can use as much video RAM as is on the display card. If you load a large 3D volumeric texture, for example, it might use a considerable amount of RAM (such as 1 GB) by itself, leaving less than expected for the rest of Photoshop. Q. How much RAM do I need on my display card to run faster in Photoshop CS4? A. For basic OpenGL functionality, you should have at least 128 MB of RAM on your display card. If you're running Windows XP in general, OpenGL will work best if you have 256 MB RAM on your display card. Most Photoshop work will run faster with between 256 - 512 MB of display RAM. If you do a lot of 3D work, you use Panoramas or large images, or you need to have multiple applications open at the same time that use the GPU, you might benefit by having 512 MB or more RAM on the display card. Q. How can I optimize Photoshop CS4 to make it run faster? A. Read the Optimize Performance guides, located here: Q. Does Photoshop take advantage of dual-GPU display cards? A. Not at this time. Q. Why can't Photoshop take advantage of more than one display card? A. When you move an image window between two monitors that are each on a separate display card, the GPU attached to the second monitor does not have access to the data necessary to accelerate drawing. The SLI and Crossfire technologies that use more than one GPU to speed up full-screen games will not work with Photoshop, because their use is limited by design to accelerate only full-screen games. Q. Does the memory usage slider control GPU memory usage and performance? A. When you allocate RAM to Photoshop, you need to leave computer RAM for the GPU to use. So don't set the RAM allocated to Photoshop to 100%. Use the default amount, 70%, or a number close to this amount, such as 60 or 80%. Q. Do History States and Cache Levels affect GPU memory usage and performance? A. The cache level can affect GPU performance if you are using very large images. You'll get better image quality when you are zoomed out if the cache level is higher, but higher cache levels require more RAM. If you experience long pauses while waiting for the screen to redraw, set the cache level up a few notches. Q. Is there a keyboard shortcut to disable OpenGL when I open Photoshop? A. Not at this time. Q. I don't see the Enable 3D Acceleration preference anymore. What happened to it? A. This preference was moved and renamed. It's now 3D Interaction Acceleration under Advanced Settings, in the GPU Settings section of the Performance Preferences. Q. What plug-ins extensions are there for controlling OpenGL? A. The only plug-ins that affect OpenGL are the two optional plug-ins Allow Old GPUs and Disallow OpenGL Windows. For more information on these plug-ins, please see "Crashes occur, Photoshop CS4 won't open, or some features are slow and OpenGL is unavailable" (TechNote kb405064). Note: Although we make these plug-ins available to you, we do not recommend their use, and they are not supported. Q. How can I tell whether an image is OpenGL enabled or not? A. Select the Rotate View Tool from the Tool Bar, where it is grouped with the Hand Tool. If OpenGL is off, when you select the tool and then move the cursor over your image, you get the nonoperational cursor (circle with a diagonal line through it). If you try to use the tool, the error: "Could not complete your request because it only works with OpenGL enabled document windows." occurs. Q. Do I need to restart Photoshop for the OpenGL preference to take effect? A. Most advanced OpenGL options require Photoshop to be restarted before they take effect; however, Enable OpenGL Drawing is enabled on the next image window that is opened. Q. Does disabling the OpenGL preference disable OpenGL for image windows that are already open? A. No. You have to close a image window for OpenGL to be disabled for that window. Q. When I increase my monitor resolution, Photoshop disables OpenGL. Why and what should I do? A. This only occurs when you change your monitor resolution while Photoshop is open. Close Photoshop before you change your monitor resolution. Q. What determines how many monitors Photoshop supports? A. The number of video outputs on your primary display card determines the number of monitors that Photoshop supports; typically there are two video ports on display cards. You can use as many monitors as you want with Photoshop CS4, as long as you don't move image windows that have OpenGL enabled to a non-primary monitor. It's best to plug both monitors into the card that contains the GPU, over plugging one monitor into each card. Q. When I switch from the monitor that's plugged into the discrete display card, to the monitor plugged into the embedded GPU, OpenGL is disabled. Why? A. The embedded GPU may not have the memory or processing power to handle GPU features, so OpenGL is disabled for that processor. An image window that is created on the monitor that is using the discrete GPU (that has OpenGL enabled) cannot be moved to a monitor running on the embedded GPU that does not have OpenGL enabled. Q. Is Photoshop Camera Raw GPU accelerated? A. No. Q. Is Photoshop Lightroom GPU accelerated? A. No. Q. How do I update the display driver on my laptop? A. For Windows, contact the laptop manufacturer. Apple updates their display drivers via their operating system updates. Q. What should I look for when buying a graphics card or new machine? A. See "List of tested graphics display cards in Photoshop CS4" (TechNote kb405711). Here are some things to keep in mind when you consider purchasing a new display card: Q. Will all new cards and drivers be supported by Photoshop and Bridge? A. Display cards that support Shader Model 3, OpenGL 2.0, and have sufficient memory and processing power should work well with Photoshop and Bridge. Note: Sometimes updating to a new display card or driver can introduce problems, even though Adobe works with display card manufacturers to minimize the chances of this occurring. It's always a good idea to set a restore point in your operating system immediately to updating hardware or software. You can usually roll back to a previous version of your display driver in Windows, as well. Contact your display card manufacturer for instructions. Q. How frequently are drivers updated? A. Display card manufacturers update the drivers. Contact them for information about how often they update their drivers. Q. How can I get more information about GPU and Adobe products? A. See "Graphics Acceleration (GPU) Support in Adobe CS4 Applications (TechNote kb405445). Artifacts - Errors on the screen that look like lines, dots, or patterns in your images. CPU - Central Processing Unit. The general-purpose computer chip that runs the programs on your computer. Display driver - Software that the operating system uses to communicate with your display card. GPU - Graphics Processing Unit. The computer chip on your graphics display card, that is optimized to display computer graphics to the screen. OpenGL - Open Graphics Library. A cross-platform software library that computer programs can use to communicate with your display driver. Primary display card - The card that contains the GPU, and that your primary monitor is plugged into. Primary monitor - The monitor that is connected to the main display card in your computer; this display card contains the GPU. Secondary display card - Any additional display cards that might be in your computer, this display probably does not contain a GPU. Secondary monitor(s) - Any additional monitors that are connected either to a second port in your primary display card, or to a second display card, which might not be controlled by a GPU. Shader Model 3 - A set of software instructions used by the GPU to perform rendering effect. Virtualize - Applications and operating systems allow hard disk space to be used as RAM, in some instances. After all the physical RAM is used up on your computer, Windows performs the same swapping of data that it does to and from RAM, to a section of hard disk designated for this use. 
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Introduction to the GPU GPU Accelerated Features in Photoshop CS4 and Bridge CS4
OpenGL/GPU features in Adobe Photoshop CS4 are:
Supported GPUs and Operating Systems
Note: Photoshop CS4 takes advantage of only one GPU on your display card, even if more GPUs are present.
Operating system
GPU support and limitations
Mac OS PPC
Photoshop supports OpenGL features, including Smooth Display at All Zoom Levels, Birdseye view, Rotate Canvas, Draw Brush Tip Editing Feedback via GPU, and Hand Toss Image, on PowerPCs when the computer uses a supported display card, and Enable OpenGL Drawing is available and selected in Photoshop > Preferences > Performance (Mac OS) or Edit > Preferences > Performance (Windows).
Advanced Drawing functions are not supported on PowerPCs, even with a supported display card. When the Advanced Drawing option in Advanced Settings is unavailable, Photoshop turns off Move Color Matching to the GPU, 3D GPU features, and uniform size checkerboard compositing.
Mac OS Intel
Supported
Windows XP 32
Supported, but Enable OpenGL Drawing is deselected by default
Windows Vista 32
Supported
Windows Vista 64
Supported
Windows XP 64
While Photoshop CS4 may work well on Windows XP 64-bit Edition, we don't officially support it because we didn't thoroughly test it. Because it wasn't fully tested, OpenGL settings are disabled by default on Windows XP 64-bit Edition. If you'd like to enable the OpenGL features, you can run the AllowOldGPUs_ON registry script to force OpenGL features to be turned on, if your display card supports them. However, when you use this registry script, you do so at your own risk. For more information on this plug-in, please see "Crashes occur, Photoshop CS4 won't open, or some features are slow and OpenGL is unavailable" (TechNote kb405064). Note that although we make this registry script available to you, we do not recommend its use, and it is not supported.
Updating GPU Drivers
Determine the version of your current display driver.
Find updated drivers.
For AMD/ATI display cards, you can find drivers on the AMD website at ati.amd.com/support/driver.html. About using beta drivers.
About notebook GPUs and drivers.
Troubleshooting
1. Turn off Enable OpenGL Drawing.
2. Reset the Photoshop preferences.
3. Update your GPU drivers and then turn on Enable OpenGL Drawing.
7. Troubleshoot known GPU issues.
8. Disable Windows Aero (Vista only).
9. Perform additional troubleshooting.
Known issues
Photoshop CS4 11.0.1
General OS
Windows XP
Issue: Large cursors don't display at the correct size.
Solution 1: If you are running an NVIDIA display card, update your driver to 181.20. This driver fixes this issue on the primary monitor. The problem still exists on a secondary monitor, if you use one.
Solution 2: Work on your primary monitor, and use your secondary monitor for panels.
Solution 3: Turn off Enable OpenGL Drawing.
Solution 4: Use one monitor.
Issue: When you run two monitors under Windows XP, Photoshop responds slowly.
Solution 1: If you are using an NVIDIA display card, you might be able to work around this issue by selecting compatibility mode in the NVIDIA Advanced control panel. Solution 2: Use one monitor.
Solution 3: Turn off Enable OpenGL Drawing.
Solution 2: (Mac OS Only): In Photoshop, choose Windows, and uncheck Application Frame. Solution 3: Use only a single monitor.
Issue: Menus flicker after you make a selection, when the Layers panel is open. Solution: Ignore the flickering or turn off Enable OpenGL Drawing.
Issue: When you drag an image to a second monitor, the background shows through the image window. Solution: Update the display driver. Display card: Various Issue: A second image window on a secondary monitor does not display properly.
On ATI cards, the second image shows the desktop through the image, but after you stop dragging the image, it displays without problems.
On NVIDIA cards, the image displays artifacts on the second monitor. After you stop dragging the second image over the first image, artifacts continue to display in the image. Solution: Update your display driver, or turn off Enable OpenGL Drawing.
Issue: The NVIDIA Desktop Manager's buttons and other screen objects are not drawn correctly. Solution: Update your display driver, or turn off Enable OpenGL Drawing.
Additional Information: This is a conflict between NVIDIA's display driver and the way Photoshop CS4 draws its menus. Display card: NVIDIA GeForce 6800
Issue: Images appear to be duplicated when you drag them. After redraw is complete, duplicated image is no longer displayed. Solution: Turn off Enable OpenGL Drawing or update your display driver. Display card: Various
Issue: When you drag a second window in Photoshop to a second monitor, the image is displayed as black, or with artifacts (NVIDIA cards), or the image is displayed with the background showing through (ATI cards). Solution: Turn Enable OpenGL Drawing off. Workaround: (NVIDIA only)
Windows Vista 64-bit
Issue: When you use a selection tool on your image, the image goes black when you press the mouse button down. Solution: Check for an updated display driver.
Issue: Images display in chunks and with lines. Solution: Turn off Enable OpenGL Drawing. Windows Vista 32-bit
Issue: When you zoom in and out several times in a large image, Photoshop stops accessing the GPU. Solution: Reduce the size of Photoshop's application window.
Issue: Image display is full of artifacts and displays with incorrect color. Detail: You are running under Bootcamp. Solution: Update your display driver. Mac OS - Intel
Issue: The area under your cursor doesn't redraw. The area under the cursor might display the transparency checkerboard, which does not redraw with image data. Solution: Manually refresh the screen. One way to do this is by zooming in or out.
Issue: When you use a large airbrush with a stylus, it takes a long time to display the entire brush stroke, and the brush stroke draws in blocky chunks. Solution: Check for an updated display driver, use a mouse, or turn Enable OpenGL Drawing off while drawing with a stylus and using large brush sizes.
Issue: When you resize your brush, the new sizes do not display while the brush is being resized. Solution: Update the display driver, or turn off Advanced Drawing. Additional Information: Advanced Drawing is disabled by default for this card. If you installed the AllowOldGPU plugin, it will allow you to enable Advanced Drawing, and this issue will occur.
Issue: When you resize a window using keyboard shortcuts, Photoshop crashes. Solution: Turn off Enable OpenGL Drawing, and make sure you're using the most recent version of the display driver. Mac OS - PowerPC
FAQ
Glossary
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