Bug 26617 - [945GM KMS] suspend to ram works only once
Summary: [945GM KMS] suspend to ram works only once
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: unspecified
Hardware: x86 (IA32) Linux (All)
: medium normal
Assignee: Jesse Barnes
QA Contact:
Keywords: NEEDINFO
Depends on:
Reported: 2010-02-17 14:17 UTC by Jeremie Bouttier
Modified: 2017-07-24 23:08 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:

Xorg.0.log (26.62 KB, text/plain)
2010-02-17 14:17 UTC, Jeremie Bouttier
no flags Details
dmesg output with boot option drm.debug=0x06 (72.16 KB, text/plain)
2010-02-17 14:19 UTC, Jeremie Bouttier
no flags Details
xorg.conf (2.30 KB, text/plain)
2010-02-17 14:20 UTC, Jeremie Bouttier
no flags Details
output from xrandr --verbose (2.87 KB, text/plain)
2010-02-17 14:21 UTC, Jeremie Bouttier
no flags Details

Description Jeremie Bouttier 2010-02-17 14:17:11 UTC
Created attachment 33370 [details]

Bug description: With KMS enabled, I can only resume from suspend to ram (using pm-suspend) once. After the second suspend, the system does not resume but instead reboots as if the system had been powered down (I have the BIOS POST screen, etc).

System environment:
-- chipset: 945GM
-- system architecture: 32-bit
-- xf86-video-intel: 2.9.1
-- xserver: 1.7.4
-- mesa: 7.6.1
-- libdrm: 2.4.17
-- kernel: 2.6.32-trunk-686 (Debian unstable)
-- Linux distribution: Debian squeeze/sid
-- Machine or mobo model: Dell Latitude D420
-- Display connector: internal LCD

Reproducing steps: this bug is reproducible, simply by invoking pm-suspend or hitting the sleep button twice.

Additional info: also observed with Debian kernel 2.6.30-2-686.
Comment 1 Jeremie Bouttier 2010-02-17 14:19:52 UTC
Created attachment 33371 [details]
dmesg output with boot option drm.debug=0x06

Obviously this is taken before the second suspend.
Comment 2 Jeremie Bouttier 2010-02-17 14:20:57 UTC
Created attachment 33372 [details]
Comment 3 Jeremie Bouttier 2010-02-17 14:21:56 UTC
Created attachment 33373 [details]
output from xrandr --verbose
Comment 4 Jesse Barnes 2010-04-06 11:36:00 UTC
Does this still happen with 2.6.33 or more recent?
Comment 5 Jeremie Bouttier 2010-04-08 12:48:46 UTC
I have reenabled KMS and the bug does not seem to be there anymore with kernel package 2.6.33-1~experimental.4 from Debian experimental nor with 2.6.32-11 from unstable. What else has changed in the meantime :
-- xserver: 1.7.6
-- mesa: 7.7.1
-- libdrm: 2.4.18

So everything looks fine now. Thanks !
Comment 6 Jesse Barnes 2010-04-08 12:54:04 UTC
Thanks for the update!

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