Bug 590811 - Thinkpad T400, Radeon HD 3400 with external monitor on DVI - X11 crashes
Summary: Thinkpad T400, Radeon HD 3400 with external monitor on DVI - X11 crashes
Alias: None
Product: Fedora
Classification: Fedora
Component: xorg-x11
Version: 12
Hardware: i686
OS: Linux
Target Milestone: ---
Assignee: X/OpenGL Maintenance List
QA Contact:
Depends On:
TreeView+ depends on / blocked
Reported: 2010-05-10 18:22 UTC by Mebus
Modified: 2010-12-03 14:51 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2010-12-03 14:51:04 UTC
Type: ---

Attachments (Terms of Use)

Description Mebus 2010-05-10 18:22:15 UTC
Description of the problem:

When I connect a external monitor to my Thinkpad T400 with the ATI Radeon HD 3400 active, first everything works fine (dual-head), but sometimes randomly X11 starts to hang. The only thing that I can do then is move the cursor around, but neither click anything nor open a terminal via keyboard shortcuts. The only solution I found is to reboot...

Everything works fine if I use the laptops internal monitor only.

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

radeon driver
kernel: Linux version
Desktop Environment: KDE 4.4.2
Screen resolution: 1440x900 & 1280x1024

How reproducible:

connect Thinkpad to a docking station
connect your DVI monitor to the dock
log on to KDE
open firefox
surf the web
watch X11 crash

Comment 1 Sven Lankes 2010-05-10 18:29:33 UTC
Please re-test using an up-to-date Kernel (kernel-


 * Do you have desktop-effects enabled in KDE? 
 * Does it also crash when using gnome? 
 * Do you have mesa-dri-drivers-experimental installed?

Comment 2 Mebus 2010-05-10 19:04:44 UTC
I activated


in GRUB and rebooted.

Anyway X11 crashed. The external screen went black and the laptop screen went completely red, yellow and some other colors, too.

It also crashes when I use gnome.

I think desktop effects are not enabled in KDE.

mesa-dri-drivers-experimental is not installed.

Comment 3 Bug Zapper 2010-11-03 15:10:29 UTC
This message is a reminder that Fedora 12 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
and issuing updates for Fedora 12.  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bug reports from releases that are no longer maintained.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 '12'.

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Comment 4 Bug Zapper 2010-12-03 14:51:04 UTC
Fedora 12 changed to end-of-life (EOL) status on 2010-12-02. Fedora 12 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.

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

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