Messages in this thread | | | Date | Thu, 17 Feb 2005 11:15:33 +0100 | From | Vojtech Pavlik <> | Subject | Re: [ACPI] Call for help: list of machines with working S3 |
| |
On Thu, Feb 17, 2005 at 01:16:45AM -0500, Len Brown wrote:
> Pavel, > I think that it is the BIOS' job on S3-suspend > to save the video mode. On S3-resume the BIOS should > re-POST and restore the video mode.
Should.
But this definitely is not the case on about 80+% of notebooks.
You can save the video state through VESA VBE, and restore it on resume, but if the BIOS didn't re-POST the video, this will often fail.
> While Linux's X drivers may be able to handle the case > where X is running -- that doesn't help us with the > cases where X is not running (a case that Windows > presumably does not have). > > Besides updated X drivers, which may have complicated > restore routines for complicated modes, all the other > techniques for restoring video from Linux are > hit/miss workarounds for broken platforms. > > To completely solve the Linux S3 video restore issue, > we need to push the platform and BIOS vendors.
That's correct.
> What am I missing?
I'm not sure if you can push the whole industry at once.
-- Vojtech Pavlik SuSE Labs, SuSE CR - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |