Bug 94798 - Freezing / GPU hang when scrolling on Dell XPS 13 4350 with Ubuntu 16.04 beta 2
Summary: Freezing / GPU hang when scrolling on Dell XPS 13 4350 with Ubuntu 16.04 beta 2
Status: CLOSED FIXED
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Linux (All)
: medium major
Assignee: Intel GFX Bugs mailing list
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2016-04-02 10:48 UTC by Mike Lewis
Modified: 2017-07-24 22:42 UTC (History)
1 user (show)

See Also:
i915 platform: SKL
i915 features: GPU hang

Attachments
GPU crash dump (44.83 KB, text/plain)
2016-04-02 10:48 UTC, Mike Lewis 		no flags Details
Bzipped dmesg from boot to hang (19.41 KB, application/octet-stream)
2016-04-02 10:49 UTC, Mike Lewis 		no flags Details
View All

Description Mike Lewis 2016-04-02 10:48:20 UTC 
Created attachment 122678 [details]
GPU crash dump

Running Ubuntu 16.04 beta 2 (kernel 4.4.0-16-generic) I experience frequent GPU hangs, this appears to happen when e.g. scrolling a Firefox or terminal window. Sometimes the system recovers and I can see the GPU hang message (attached), sometimes the system locks up completely and needs a hard reset.
Comment 1 Mike Lewis 2016-04-02 10:49:23 UTC 
Created attachment 122679 [details]
Bzipped dmesg from boot to hang
Comment 2 Timo Aaltonen 2016-04-03 09:51:17 UTC 
please try the kernel from (install both packages)

http://koti.kapsi.fi/~tjaalton/skl/gt3/

it adds two patches from bugs 94161 and 93491
Comment 3 Mike Lewis 2016-04-03 19:33:28 UTC 
After installing the patched kernel the problem seems to be fixed. I have tried vigorous scrolling in Firefox and terminal, and also tried running glmark2,  with no hangs observed.
Comment 4 Martial 2016-04-05 10:58:41 UTC 
Hi,
I was the same issue with my Dell XPS 13" 9350.
After apply this new kernel the problem disappeared.

Thank you for this.
Comment 5 Timo Aaltonen 2016-04-25 11:41:57 UTC 
closing, 4.4.0-18 has the patches

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