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-
- Cirrus Logic Vesa Bios Extension 2.0 TSR (CLVBETSR.EXE)
- Version 1.0 (7-30-96)
-
- Overview:
-
- CLVBETSR is a Terminate and Stay Resident (TSR) implementation
- of the VESA BIOS Extensions Standard Version 2.0. This particular
- version of CLVBETSR currently supports the following
- Cirrus Logic products.
-
- CL-GD5436
- CL-GD5446
- SVGA graphic accelerators.
-
- Installation:
-
- CLVBETSR is installed by executing CLVBETSR.EXE
- Successful installation is confirmed by a sign on message
- which displays the date and version.
-
- DeInstallation:
-
- After installation, the Cirrus Logic VBE tsr can be disabled with
- the command line option -D or /D. For example
-
- clvbetsr -d
-
- would disable a previosly installed version. A message is displayed
- to confirm that the tsr is disabled.
-
- Executing CLVBETSR when a disabled version is resident will reenable
- the disabled tsr. A message is displayed to confirm that the TSR
- has been re-enabled.
-
- In addition to the modifications necessary for PDR's associated
- with ClVBETSR.EXE (5-13-96), this release (7-30-96) has the
- following changes:
-
- 1). CLVBETSR currently supports the CL-GD5436 and the CL-GD5446.
-
- 2). 800x600 16 color and 1024x768 16 color are
- not available on 1MB or 2 MB boards with a
- 128 x 16 memory configuration.
-
- 3). Vesa Local Bus configurations support the
- Banked mode only.
-
- 4). Support for QUAKE Shareware v1.01 added.
-
- 5). Supports linear mode in PCI local bus configuration.
-
-
- Available Modes supported by CLVBETSR.EXE for CL-GD5436 and CL-GD5446.
-
- Modes Resolutions
-
- 800x600 1024x768 1280x1024
- 4bpp Banked Only 1,2,3,4Mb 1,2,3,4Mb 1,2,3,4Mb
-
- 640x400 640x480 800x600 1024x768 1280x1024
- 8bpp Banked and Linear 1,2,3,4Mb 1,2,3,4Mb 1,2,3,4Mb 1,2,3,4Mb 2,3,4Mb
-
- 640x480 800x600 1024x768 1280x1024
- 15bpp Banked and Linear 1,2,3,4Mb 1,2,3,4Mb 2,3,4Mb 3,4Mb
-
- 640x480 800x600 1024x768 1280x1024
- 16bpp Banked and Linear 1,2,3,4Mb 1,2,3,4Mb 2,3,4Mb 3,4Mb
-
- 640x480 800x600 1024x768
- 24bpp Banked and Linear 1,2,3,4Mb 2,3,4Mb 3,4Mb
-
-
- Known Problems.
-
- 1). Loading the TSR high has resulted in page fault errors with
- some applications.
- Current solution is to load the TSR in conventional memory.
- Please refer to your memory managers documentation for further
- instructions.
-
- 2). You may encounter screen flicker in the following modes.
- 1024x768 4bpp 70Hz and 72Hz refresh rates in Banked modes.
- 1024x768 8bpp 87iHz and 85Hz refresh rates in Linear modes.
- 800x600 15bpp and 16bpp 72Hz refresh rates in Linear modes.
- 640x480 15bpp and 16bpp 60Hz refresh rates in Banked and Linear modes.
- Current solution is to use CLMODE utility to set your refresh rate
- either higher or lower to avoid problems.
-
- NOTE: These problems are system dependent and could not be reproduced across
- all platforms.
-
- Contacts:
- Tech Support.
- 1-510-226-2323
-
- BBS
- 1-510-440-9080
-