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 1-510-440-9080Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
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