Reseting a video card from suspend is essentially the same problem as reseting secondary video cards on boot. The same code can address both problems.
Some things to consider.... 1) With multiple video cards you have to ensure only a single VGA gets enabled. Running video reset on a card is going to turn on it's VGA emulation. So you have to ensure that VGA emulation on other cards is disabled first. 2) I add the 'rom' parameter in sysfs so that you can get to the rom contents from a user space app. It's there to support running video reset code. "echo 1 >rom" to see the contents, it is not enabled by default. 3) The user space reset programs have to be serialized because of the rule about only a single VGA at a time. Calling vm86 from kernel mode is not a good idea. Doing this in user space lets you have two reset programs, vm86 and emu86 for non-x86 machines. A starting place for a user space reset program: ftp://ftp.scitechsoft.com/devel/obsolete/x86emu/x86emu-0.8.tar.gz This thread talks about the VGA routing code: http://lkml.org/lkml/2005/1/17/347 -- Jon Smirl [EMAIL PROTECTED] - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
