Bug 108141

Summary: Display is broken on some old Intel chipset.
Product: Drivers Reporter: Frederic Bezies (fredbezies)
Component: Video(DRI - Intel)Assignee: intel-gfx-bugs (intel-gfx-bugs)
Status: RESOLVED INVALID    
Severity: normal CC: intel-gfx-bugs
Priority: P1    
Hardware: All   
OS: Linux   
Kernel Version: 4.3 Tree: Mainline
Regression: No
Attachments: Error log grabbed from my eeePC.

Description Frederic Bezies 2015-11-18 11:54:08 UTC
Created attachment 194831 [details]
Error log grabbed from my eeePC.

I saw this display bug after I upgraded to linux 4.3 on my archlinux.

Display is completely useless with my old eeePC using this chipset :

00:02.0 VGA compatible controller: Intel Corporation Mobile 945GSE Express Integrated Graphics Controller (rev 03)

But it works on my laptop which is using a "younger" Intel chipset :

00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)

I reported this bug on archlinux bug tracker :

https://bugs.archlinux.org/task/46968

And here is the error log related to the bug I got on my eeePC.

I hope it is not a duplicate.
Comment 1 Frederic Bezies 2015-11-18 11:57:33 UTC

Looking at the beginning of error log, and google it to find this discussion.

Known bug ? 

Nov  4 17:00:05 fredo-arch-eeepc kernel: WARNING: CPU: 1 PID: 44 at drivers/gpu/drm/drm_atomic_helper.c:674 drm_atomic_helper_update_legacy_modeset_state+0x26a/0x280 [drm_kms_helper]()

https://lkml.org/lkml/2015/11/10/321 

Related or not ?
Comment 2 Jani Nikula 2015-11-18 13:01:48 UTC
Please file new i915 bugs at the freedesktop.org bugzilla:
https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel