Bug 90883

Summary: Random text characters partially or completely missing
Product: xorg Reporter: Steven Usdansky <usdanskys>
Component: Driver/nouveauAssignee: Nouveau Project <nouveau>
Status: RESOLVED FIXED QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: medium    
Version: unspecified   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
screenshot illustrating the problem none

Description Steven Usdansky 2015-06-06 21:54:36 UTC 
Created attachment 116334 [details]
screenshot illustrating the problem

Original with apport information filed at
https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1462147

Using Ubuntu-Mate 15.10 (development) amd64

Problem began upon upgrading of
   xserver-xorg-core_1.17.1-0ubuntu3_amd64 and
   xserver-xorg-common_1.17.1-0ubuntu3_amd64xorg
to
   xserver-xorg-core_1.17.1-0ubuntu4_amd64 and
   xserver-xorg-common_1.17.1-0ubuntu4_amd64xorg

and was resolved by reverting to the pre-upgrade packages. Apparently random text characters, or parts thereof, would be missing in various applications including the Lightdm greeter, Firefox, Pidgin, Mate-terminal, the Mate panel clock, Unetbootin, and the Mate menu. This occurs both at my monitor's native resolution (1680x1050) and at 1600x1200.
Other possibly useful info:
libdrm-nouveau2:amd64 2.4.60-3 amd64
xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1 amd64

FWIW, Fedora Rawhide displays properly for me with 
xorg-x11-server-common-1.17.1-14.fc23.x86_64
xorg-x11-server-Xorg-1.17.1-14.fc23.x86_64
xorg-x11-drv-nouveau-1.0.11-3.fc23.x86_64
Comment 1 Steven Usdansky 2015-06-09 11:52:42 UTC 
Using today's upgraded nouveau driver, along with (the formerly problematic)
xserver-common and xserver-xorg-core has fixed the problem.

Working configuraiton:
  xserver-common                 2:1.17.1-0ubuntu4
  xserver-xorg-core              2:1.17.1-0ubuntu4
  xserver-xorg-video-nouveau     1:1.0.11-1ubuntu3

Changing status to Resolved fixed

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