Messages in this thread | ![/](/images/icornerl.gif) | | Date | Fri, 14 Mar 2003 11:21:26 +0100 | From | Helge Hafting <> | Subject | Re: VESA FBconsole driver? |
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Kendall Bennett wrote:
> The reason why it would nice is so that the VESA FBconsole driver (and in > fact all the FBconsole drivers that use the real mode BIOS to set an > initial display mode) can restore that mode correctly when an application > exists and restores the console. Right now it is up to the application > program to restore the console, as the kernel has absolutely no way to do > it. If that program has not way to restore it (old SVGALib code for > instance) or the application crashes, you are stuck with a black screen > if you are using a framebuffer console. If the kernel knew how to call > the BIOS to restore the mode, this problem could be completely eliminated > and services could be provided to properly restore the system state
The bios isn't the way to go. Unless the bios coders puts an _ordinary_ linux kernel module in their eprom.
If the kernel knew how to restore the video state itself - that'd be something. Go complain to those who keeps such knowledge secret. And no, they won't risk their company on providing such information. Setting the modes is such a tiny little piece of what a graphichs card do. (Providing full information on how to program the accelerator chips wouldn't kill them either...)
Helge Hafting
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