Comment 34 for bug 292256

Revision history for this message
Chow Loong Jin (hyperair) wrote : Re: [Bug 292256] Re: backlight failed after suspend to ram on IBM X40

On Mon, 2008-11-10 at 11:49 +0000, japi wrote:
> japi@jypd:~$ lshal | grep quirk
> power_management.quirk.vbe_post = true (bool)
> japi@jypd:~$ lshal | grep system.hardware
> system.hardware.primary_video.product = 13698 (0x3582) (int)
> system.hardware.primary_video.vendor = 32902 (0x8086) (int)
> system.hardware.product = 'SQ30' (string)
> system.hardware.serial = '123490EN400015' (string)
> system.hardware.uuid = '604EC084-E01D-B211-8000-AEF914A58E70' (string)
> system.hardware.vendor = 'Samsung Electronics' (string)
> system.hardware.version = 'Revision 01' (string)
> japi@jypd:~$ sudo s2ram -i
> This machine can be identified by:
> sys_vendor = "Samsung Electronics"
> sys_product = "SQ30"
> sys_version = "Revision 01"
> bios_version = "01LK"
>
> I only have a Samsung Q30.
>
> Have you noticed, that there are multiple versions of X40 Laptops?
> Some of them need the s3-bios and s3-mode quirk, others need none of them.
> (see in /usr/share/hal/fdi/information/10freedesktop/20-video-quirk-pm-ibm.fdi in the comments on:
> - line 44
> - line 64 (two times)
> - line 105)
> The s2ram whitelist also has multiple entries on the x40.
> Probably this contributes to the bug.
>
Multiple version of X40 Laptops? That explains it. Either way it looks
like a bug in both hal-info and pm-utils. hal-info doesn't pass
--quirk-s3-bios and --quirk-s3-mode for Pieter's machine, and pm-utils
removes --quirk-vbe-post on yours.
--
Chow Loong Jin