Bug 67377 - [sna 4500MHD] Glyph corruption, changes with repaint
Summary: [sna 4500MHD] Glyph corruption, changes with repaint
Status: RESOLVED DUPLICATE of bug 55500
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/intel (show other bugs)
Version: 7.7 (2012.06)
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Chris Wilson
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2013-07-26 21:49 UTC by Russell Haley
Modified: 2013-07-26 22:25 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:

Attachments
Video of problem (103.49 KB, text/plain)
2013-07-26 21:49 UTC, Russell Haley 		no flags Details
Xorg.0.log from xorg 1.12 (33.76 KB, text/plain)
2013-07-26 21:50 UTC, Russell Haley 		no flags Details
Xorg.0.log from xorg 1.14.99.1-167-gff38bbe (33.31 KB, text/plain)
2013-07-26 21:51 UTC, Russell Haley 		no flags Details
Video of problem (correct mime type) (103.49 KB, video/mp4)
2013-07-26 21:55 UTC, Russell Haley 		no flags Details
Show Obsolete (1) View All

Description Russell Haley 2013-07-26 21:49:51 UTC 
Created attachment 83062 [details]
Video of problem

Characters are drawn incorrectly with some small probability on every repaint. This causes a few characters on screen to be corrupt most of the time, and makes a rather odd flickering effect when resizing windows.  See attached video for example. Symptoms appear not to be present with bitmap or monospace fonts.

A git bisect suggests the problem appeared here:
http://cgit.freedesktop.org/xorg/driver/xf86-video-intel/commit/?id=2a59eadf8165bd70780ac16220456c6196ac3ff1

It would seem the glyph mask hack is still needed.

I was able to reproduce the problem with xf86-video-intel 2.21.12 on Xorg 1.12 (Debian Sid) and on Xorg 1.14.99.1-167-gff38bbe, built using the instructions in the ModularDevelopersGuide.
Comment 1 Russell Haley 2013-07-26 21:50:58 UTC 
Created attachment 83063 [details]
Xorg.0.log from xorg 1.12
Comment 2 Russell Haley 2013-07-26 21:51:42 UTC 
Created attachment 83064 [details]
Xorg.0.log from xorg 1.14.99.1-167-gff38bbe
Comment 3 Russell Haley 2013-07-26 21:55:09 UTC 
Created attachment 83065 [details]
Video of problem (correct mime type)
Comment 4 Russell Haley 2013-07-26 22:05:44 UTC 
Additional information: kernel version is 3.10.2.
Comment 5 Chris Wilson 2013-07-26 22:25:18 UTC 

*** This bug has been marked as a duplicate of bug 55500 ***

Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.