On Sad, 2005-07-23 at 00:17 +0100, Matthew Garrett wrote: > Dave Airlie <[EMAIL PROTECTED]> wrote: > > > At OLS at lot of people were giving out about cards not resuming, > > so using a patch from Michael Marineau and help from lots of people > > sitting around in a circle at OLS I've gotten a patch that restores video > > on my laptop by going into real mode and re-posting the BIOS during > > resume, > > On laptops, the code at c000:0003 may jump to BIOS code that isn't > present after system boot. In userspace, this isn't too much of a > problem - the userspace code tends to just fall over rather than hanging > the machine. What happens if the kernel hits illegal or inappropriate > code on resume?
For Intel at least the recommendation is to use the BIOS "save mode"/"restore mode" interface. - 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/
