Bug 894158

Summary: The X server isn't updating text windows correctly on the screen
Product: [Fedora] Fedora Reporter: David Howells <dhowells>
Component: xorg-x11-drv-nouveauAssignee: Ben Skeggs <bskeggs>
Status: CLOSED WONTFIX QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 18CC: airlied, ajax, bskeggs, dvratil, jgrulich, jreznik, kevin, ltinkl, py, rdieter, rnovacek, smparrish, than, xgl-maint
Target Milestone: ---   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2014-02-05 14:41:48 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
Cut-down timed snapshot of desktop showing unfilled gaps.
none
kernel boot log
none
X server log none

Description David Howells 2013-01-10 21:14:37 UTC
Created attachment 676547 [details]
Cut-down timed snapshot of desktop showing unfilled gaps.

Description of problem:

Text-displaying windows of certain programs (emacs and xterm) are not updating their contents properly.  This started a couple of days ago when I updated a bunch of packages on my desktop box, including various xorg-x11 packages.


Version-Release number of selected component (if applicable):

xorg-x11-server-Xorg-1.12.4-2.fc17.x86_64
xorg-x11-drv-nouveau-0.0.16-37.20120306gitf5d1cd2.fc17.x86_64
kernel-3.6.11-1.fc17.x86_64
xterm-286-1.fc17.x86_64

The emacs I'm using is 24.1.50.1 that I build myself at the beginning of July 2012.  The xterm package is also unchanged from when it was working.

Prior to this, I was using:

xorg-x11-server-Xorg-1.9.4-1.fc14.x86_64
xorg-x11-drv-nouveau-debuginfo-0.0.16-27.20110720gitb806e3f.fc16.x86_64

which worked.

How reproducible:

Reasonably, though unpredictably reproducible.

Steps to Reproduce:
1. Open xterm.
2. Do ls of big directory repeatedly until gaps appear in output (see screenshot).

Switching away to another program (say a desktop snapshot taker) usually causes the window to be updated, thus filling in the gaps.
  
Actual results:

Gaps where bits of text should appear in the output on xterm.

With emacs, it appears that old text isn't always erased or updated to the new text.

Expected results:

The text should be updated correctly.

Additional info:

Comment 1 David Howells 2013-01-10 21:17:14 UTC
Created attachment 676550 [details]
kernel boot log

Comment 2 David Howells 2013-01-10 21:18:03 UTC
Created attachment 676551 [details]
X server log

Comment 3 David Howells 2013-01-10 21:19:03 UTC
There is no /etc/X11/xorg.conf file.  There is one fragment in xorg.conf.d/ to set up the keyboard if you want that.

Comment 4 David Howells 2013-01-17 14:33:20 UTC
This is still a problem under F18:

xorg-x11-server-Xorg-1.13.1-4.fc18.x86_64
xorg-x11-drv-nouveau-1.0.3-1.fc18.x86_64
kernel-3.7.2-201.fc18.x86_64
xterm-287-1.fc18.x86_64

Comment 5 David Howells 2013-02-25 12:20:57 UTC
hmmm...  This appears to affect KDE but not Gnome, so I'm tentatively reassigning it to kdelibs.

kdelibs-4.9.5-2.fc18.x86_64
kde-workspace-4.9.5-7.fc18.x86_64

Comment 6 Rex Dieter 2013-02-25 13:22:02 UTC
The screenshot isn't even a kde application, but xterm.

I suppose you could try disabling desktop effects, if enabled, but I think all that will do is highlight that it's still most likely a driver issue.

Comment 7 David Howells 2013-02-25 14:13:05 UTC
> The screenshot isn't even a kde application, but xterm.

Indeed.  But doesn't the window manager get to interfere in the redrawing events?

It's odd that I can't make this happen under Gnome, but it's trivially easy under KDE.

That said, toggling Desktop Effects off under KDE makes the problem go away (so far as I can tell).  Toggling them back on makes the problem come back.

Comment 8 Fedora End Of Life 2013-12-21 10:18:51 UTC
This message is a reminder that Fedora 18 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 18. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
this bug will be closed as WONTFIX if it remains open with a Fedora 
'version' of '18'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version prior to Fedora 18's end of life.

Thank you for reporting this issue and we are sorry that we may not be 
able to fix it before Fedora 18 is end of life. If you would still like 
to see this bug fixed and are able to reproduce it against a later version 
of Fedora, you are encouraged  change the 'version' to a later Fedora 
version prior to Fedora 18's end of life.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events. Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.

Comment 9 Fedora End Of Life 2014-02-05 14:41:53 UTC
Fedora 18 changed to end-of-life (EOL) status on 2014-01-14. Fedora 18 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of
Fedora please feel free to reopen this bug against that version. If you
are unable to reopen this bug, please file a new report against the
current release. If you experience problems, please add a comment to this
bug.

Thank you for reporting this bug and we are sorry it could not be fixed.