Changes between Version 14 and Version 15 of Troubleshooting


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Timestamp:
Jan 13, 2013, 4:29:43 PM (11 years ago)
Author:
David Azarewicz
Comment:

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  • Troubleshooting

    v14 v15  
    33== Performance ==
    44
    5 This version of the Panorama driver attempts to set write combining caching for the video display memory using MTRRs. This is preferred
     5This version of Panorama attempts to set write combining caching for the video display memory using MTRRs. This is preferred
    66since using MTRRs affects physical memory. This means that all access to video memory from all drivers and all programs anywhere in the
    7 system are affected. If your system does not support this type of MTRR change, the Panorama driver will use PAT to set write combine
     7system are affected. If your system does not support this type of MTRR change, Panorama will use PAT to set write combine
    88caching for accesses to video memory that use the Panorama resources. PAT is process specific, however, so it does not affect anything
    99outside of the process that sets it.
    … …  
    1919This document is for version 1.02 and higher. Previous versions had a different command syntax.
    2020
    21 The custom resolution feature is experimental and may not work in all cases. The custom resolution feature works by patching the video BIOS if necessary. Newer Intel BIOS and ATI/ATOM BIOS are supported. Nvidia BIOS support is coming soon. Patching the BIOS does not always work and results may vary.
     21The custom resolution feature is experimental and may not work in all cases. The custom resolution feature works by patching the video BIOS if necessary. Newer Intel BIOS and ATI/ATOM BIOS are supported. Nvidia BIOS support is coming soon. Patching the BIOS does not always work and results may vary. Some BIOS have limitations and won't work at some resolutions even though the mode table has been patched.  There is nothing that can be done in Panorama to fix this limitation in the BIOS.
    2222
    23 By default, the Panorama driver will query the display resolution and timing (EDID) via the Display Data Channel (DDC).
    24 If this succeeds, the Panorama driver will automatically add the native display resolution to the list of available
     23By default, Panorama will query the display resolution and timing (EDID) via the Display Data Channel (DDC).
     24If this succeeds, Panorama will automatically add the native display resolution to the list of available
    2525resolutions that are displayed in the Screen Object settings.
    2626You can then select the desired resolution from the list. This is the best method of operation since the exact timings that are
    2727provided by the display are used.
    2828
    29 If you have previously used a wide screen enabler, then there is a chance that Presentation Manager might use an incorrect resolution when switching to this new Panorama driver. To prevent this confusion, switch to a standard SVGA resolution (800x600, 1024x768, or 1280x1024) before installing the new Panorama driver. Reboot to make sure that the standard SVGA resolution you have chosen actually works, install the new Panorama driver, reboot and select your desired resolution from the list. If you did not do this prior to installing the new Panorama driver and the Presentation Manager has selected a non-displayable resolution, you can reset the Presentation Manager selected resolution as described below.
     29If you have previously used a wide screen enabler, then there is a chance that Presentation Manager might use an incorrect resolution when switching to this new version of Panorama. To prevent this confusion, switch to a standard SVGA resolution (800x600, 1024x768, or 1280x1024) before installing the new version of Panorama. Reboot to make sure that the standard SVGA resolution you have chosen actually works, install the new version of Panorama, reboot and select your desired resolution from the list. If you did not do this prior to installing the new version of Panorama and the Presentation Manager has selected a non-displayable resolution, you can reset the Presentation Manager selected resolution as described below.
    3030
    3131If you have problems with the custom resolution feature, the !PanoUtil.exe program can be used to control the custom resolution functions.
    … …  
    8484== Collecting a Testlog Log ==
    8585
    86 1. Make sure your system is booted with the Panorama driver installed
     861. Make sure your system is booted with Panorama installed
    87872. Navigate to the \Panorama directory on your boot disk.
    88882. type: