Bug 28510 - Problem with specific programs on X.org 7.5 machine
Summary: Problem with specific programs on X.org 7.5 machine
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/intel (show other bugs)
Version: 7.5 (2009.10)
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Carl Worth
QA Contact: Xorg Project Team
URL: http://sdp.ppona.com/
Keywords: NEEDINFO
Depends on:
Reported: 2010-06-11 14:55 UTC by Ettore Atalan
Modified: 2010-07-18 01:15 UTC (History)
0 users

See Also:
i915 platform:
i915 features:


Description Ettore Atalan 2010-06-11 14:55:52 UTC

I'm using Ubuntu 10.04 x64 (with X.org 7.5) on a notebook with Intel Graphics 4500 MHD and experienced a tricky problem, because there are several programs which can be the reason for this bug.

I use a program called "SDP Downloader" [*] running in Wine on Ubuntu's Gnome Desktop. The problem is that the program window does no longer appear. Only a taskbar entry with the program name appears and that's it. This problem appears with all Wine versions of the last 2 years and under Gnome 2.30 or KDE 4.4. Mysteriously, the program worked fine on Ubuntu 9.10 x64 with Gnome 2.28 and X.org 7.4. Is this a X.org/Graphics driver bug?

[*] http://sdp.ppona.com/
Comment 1 Chris Wilson 2010-06-29 10:00:54 UTC
It is difficult to know what is going on here. If the title bar appears but the contents appear blank, then it is just likely that nothing is being drawn in the application window (hence you see whatever was behind the window when it was first mapped). The best strategy I can suggest is to find another simpler test case for the erroneous behaviour (so simple that I might be able to reproduce it here...) Other than that, the challenge is then to narrow down the differences between the working system and the bad, so that you can identify which particular change introduced the regression. That is downgrade the xserver and related components, then install new packages until things break (and then proceed to narrow down which patch in that package is the culprit...) This is of course complicated by having to maintain dependencies as you change between different software versions.
Comment 2 Chris Wilson 2010-07-17 13:53:23 UTC
I don't think this is a gfx driver bug. Based on the description it simply sounds like the WM is not presenting the application. If you do undercover some more conclusive evidence, that would be a great first step.
Comment 3 Ettore Atalan 2010-07-17 14:29:12 UTC
The problem is the same on different window managers. Same buggy behaviour on Gnome with Metacity or Compiz and on KDE with Kwin.
Comment 4 Chris Wilson 2010-07-18 01:15:20 UTC
Take the window manager entirely out of the equation. Run the wine on a bare X, and xtrace it:

$ sudo X -ac :0 &
$ xtrace -osdl-xtrace.txt -c -n -k wine "SDL Downloader.exe"

Does that show the application? If not upload the sdl-xtrace.txt and lets have a look at what is going on.

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