Bug 78681

Summary: Intel 965GM hungs, artifacts in text mode during boot, blank screen after X start.
Product: Drivers Reporter: Piotr Rudzki (ryba.lodz)
Component: Video(DRI - Intel)Assignee: Rodrigo Vivi (rodrigo.vivi)
Status: RESOLVED CODE_FIX    
Severity: high CC: intel-gfx-bugs, martin.stolpe
Priority: P1    
Hardware: x86-64   
OS: Linux   
Kernel Version: 3.15.1 Subsystem:
Regression: Yes Bisected commit-id:
Attachments: Syslog with visible kernel errors from intel driver.
dmesg
error state from /sys/kernel/debug/dri/0/
error state from /sys/kernel/debug/dri/64/

Description Piotr Rudzki 2014-06-22 14:02:44 UTC
Created attachment 140621 [details]
Syslog with visible kernel errors from intel driver.

Kernel 3.15.1 blank screen in Xorg. During bootup on text screen only artifacts are shown. Piece of syslog in attachment.
Comment 1 Jani Nikula 2014-06-23 08:12:14 UTC
Is this a regression?
Comment 2 Piotr Rudzki 2014-06-23 12:38:01 UTC
Yes. On 3.13 there aren't any problems. On 3.14 there is problem with backlight and on 3.15 graphic card doesn't work.
Comment 3 Jani Nikula 2014-06-23 12:51:28 UTC
(In reply to Piotr Rudzki from comment #2)
> Yes. On 3.13 there aren't any problems. On 3.14 there is problem with
> backlight and on 3.15 graphic card doesn't work.

One issue per bug please. Have you reported the backlight issue separately? Is that fixed in 3.15?

For the gpu hang, please attach the error state as instructed in the dmesg.
Comment 4 Piotr Rudzki 2014-06-28 11:35:10 UTC
Sorry for my late response. Backlight report is known.
https://bugs.freedesktop.org/show_bug.cgi?id=77266

Added dmesg when running 3.15.1 kernel.
Comment 5 Piotr Rudzki 2014-06-28 11:35:58 UTC
Created attachment 141211 [details]
dmesg
Comment 6 Rodrigo Vivi 2014-07-12 01:05:39 UTC
Could you please grab the error state?
https://01.org/linuxgraphics/documentation/how-get-gpu-error-state

Also, could you please test latest drm-intel-nightly?
Comment 7 Martin Stolpe 2014-07-20 16:03:51 UTC
*** Bug 78731 has been marked as a duplicate of this bug. ***
Comment 8 Martin Stolpe 2014-07-20 16:06:32 UTC
Created attachment 143551 [details]
error state from /sys/kernel/debug/dri/0/
Comment 9 Martin Stolpe 2014-07-20 16:06:58 UTC
Created attachment 143561 [details]
error state from /sys/kernel/debug/dri/64/
Comment 10 Martin Stolpe 2014-08-03 17:14:53 UTC
Do you need any additional feedback?
Comment 11 Piotr Rudzki 2014-08-04 19:15:07 UTC
On 3.16~RC6 system works without problems.
Comment 12 Martin Stolpe 2014-08-12 22:20:16 UTC
For for me too on 3.16.
Comment 13 Jani Nikula 2014-08-14 13:03:56 UTC
(In reply to Piotr Rudzki from comment #11)
> On 3.16~RC6 system works without problems.

(In reply to Martin Stolpe from comment #12)
> For for me too on 3.16.

Okay, thanks for the report.