Xvesa falsely detects less memory than the video card has
I'm running an HP Pavilion Xe78, which has an integrated intel 810 video card. It's currently dual booting Windows 2000 and Damn Small Linux (DSL).
Windows 2000 finds that the video card has 4MB, thus allowing me to run at 1280x1024x24. The DSL X server configuration tool (xserver.sh) allowed me to choose 1280x1024x24, but then shows flawed colors when I reboot to make the changes effective. The penguin backdrop is sprinked with cyan dots, which I believe is a typical artifact when a truecolor image is shown at 16 bit color depths. It's as if the X11 server is not complying with the configuration.
The highest resolution I can achieve in DSL with truecolor is 800x600. This is my first experience with DSL, and I'm not even sure how to look at the X11 configuration file because no config files exist in the /etc/X11 folder.
BTW, the specs for this computer indicate that there is 11 MB of shared video memory. Is it possible that the X11 server isn't able to correctly assess the amount of shared memory allocated to a video card?
I have more details on this problem
DSL is using an Xvesa server, which is a lightweight alternative to XFree86 and X.org. Xvesa falsely detects that I only have 1MB of video memory:
I have tried forcing the 1280x1024x24 mode using this .xserverrc file:
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