On Fri, 2008-05-16 at 15:13 +0100, Matthew Garrett wrote:
> Some kernel drivers are able to restore graphics state on their own.
> Attempting to run quirks there can be harmful. Check whether there's a
> loaded driver which can handle suspend/resume, and if so refuse to run
> the quirks.
I will rework this patch before applying it -- if we are not handling
quirks on resume, we should probably ignore them on suspend as well.
> diff --git a/pm/sleep.d/99video b/pm/sleep.d/99video
> index c8efd12..71decd5 100755
> --- a/pm/sleep.d/99video
> +++ b/pm/sleep.d/99video
> @@ -151,7 +157,25 @@ case "$1" in
> suspend_video
> fi
> ;;
> - resume) resume_video ;;
> + resume)
> + # Intel DRM can resume the graphics since 2.6.26
> + if [ -d /sys/module/i915 ]; then
> + return 0;
> + fi
> +
> + # Nvidia claim their binary driver can adequately handle
> + # suspend/resume
> + if [ -d /sys/module/nvidia ]; then
> + return 0;
> + fi
> +
> + # Ditto ATI
> + if [ -d /sys/module/fglrx ]; then
> + return 0;
> + fi
> +
> + resume_video
> + ;;
> thaw)
> if [ "${HIBERNATE_RESUME_POST_VIDEO}" = "yes" ]; then
> resume_video
>
--
Victor Lowther
Ubuntu Certified Professional
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