Bug 88714 - [HSW GT1] wrong size wm entry cause *ERROR* CPU pipe A FIFO underrun
Summary: [HSW GT1] wrong size wm entry cause *ERROR* CPU pipe A FIFO underrun
Status: CLOSED DUPLICATE of bug 87990
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: XOrg git
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Intel GFX Bugs mailing list
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-01-22 17:10 UTC by dhead666
Modified: 2017-07-24 22:49 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:

Attachments
20150122_fifo.log (205.89 KB, text/plain)
2015-01-22 17:10 UTC, dhead666 		no flags Details
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Description dhead666 2015-01-22 17:10:12 UTC 
Created attachment 112672 [details]
20150122_fifo.log

I've noticed the error message "*ERROR* uncleared fifo underrun on pipe A" since kernel 3.17, not sure what the best way to reproduce, sometimes it will appear when changing to tty2 and others when the system is stressed (e.g. high GPU usage by Chromium).

See attached log, noticed that I only needed to change to tty2 for the error message appeared.

system: Acer C720, Haswell GT1, 2995U
kernel: 3.19rc5
xf86-video-intel: 2.99.916
mesa: 10.4.2
xorg-server: 1.16.3
distro: Arch Linux x86_64
Comment 1 Rodrigo Vivi 2015-01-22 21:56:57 UTC 

*** This bug has been marked as a duplicate of bug 87990 ***

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