Bug 498780 - kernel mode setting messed up the display of my tft monitor
kernel mode setting messed up the display of my tft monitor
Status: CLOSED WORKSFORME
Product: Fedora
Classification: Fedora
Component: xorg-x11-drv-ati (Show other bugs)
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i686 Linux
low Severity medium
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Assigned To: X/OpenGL Maintenance List
Fedora Extras Quality Assurance
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Depends On:
Blocks:
  Show dependency treegraph
 
Reported: 2009-05-03 06:14 EDT by Huub Schaeks
Modified: 2009-05-04 09:33 EDT (History)
2 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Environment:
Last Closed: 2009-05-03 08:56:58 EDT
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RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


Attachments (Terms of Use)
A screenshot of my complete desktop, made while the display on the tft monitor was distorted. (394.50 KB, image/png)
2009-05-03 06:14 EDT, Huub Schaeks
no flags Details
Photo of my crt monitor at the time the screenshot (attachment 342210) was made. Quite as expected. (372.43 KB, image/jpeg)
2009-05-03 06:17 EDT, Huub Schaeks
no flags Details
Photo of my tft monitor at the time the screenshot (attachment 342210) was made. Not nice. (698.64 KB, image/jpeg)
2009-05-03 06:18 EDT, Huub Schaeks
no flags Details
My xorg.conf (1.84 KB, text/plain)
2009-05-03 08:45 EDT, Huub Schaeks
no flags Details
My Xorg.0.log without kernel mode setting (i.e. using nomodeset) (84.20 KB, text/plain)
2009-05-03 08:46 EDT, Huub Schaeks
no flags Details

  None (edit)
Description Huub Schaeks 2009-05-03 06:14:36 EDT
Created attachment 342210 [details]
A screenshot of my complete desktop, made while the display on the tft monitor was distorted.

Description of problem:
I have dual monitor setup with a crt monitor (1600x1200; d-sub) and a tft monitor (1920x1200; dvi). This works fine when I boot with the nomodeset kernel boot option. If I omit this option the tft monitor seems to display the same image that is on the crt monitor in a very corrupted manner. Windows I open on the ctr monitor have some vague mirror image on the tft monitor. 

The cursor can still move from one monitor to the other, and judging by the screenshot I took with ksnapshot the X server seems to think everything is fine.


Version-Release number of selected component (if applicable): 
F11 preview KDE-4


How reproducible:
Every time


Steps to Reproduce:
1.Just boot without the nomodeset kernel boot option
2.
3.
  
Actual results:
Distorted and unusable image on the tft monitor.


Expected results:
A nice big desktop consisting of both monitors.


Additional info:
Radeon 9800-Pro video card.
Comment 1 Huub Schaeks 2009-05-03 06:17:02 EDT
Created attachment 342214 [details]
Photo of my crt monitor at the time the screenshot (attachment 342210 [details]) was made. Quite as expected.
Comment 2 Huub Schaeks 2009-05-03 06:18:35 EDT
Created attachment 342216 [details]
Photo of my tft monitor at the time the screenshot (attachment 342210 [details]) was made. Not nice.
Comment 3 Huub Schaeks 2009-05-03 06:21:10 EDT
Sorry about the component mentioned in the bug report being xalan-c. I missed that when filing the original bug and can't find a way to alter it now. I don't really know which component is concerned here.
Comment 4 Lubomir Rintel 2009-05-03 06:49:50 EDT
Thanks for your report.

Given you have a Radeon GPU, I guess you use an "ati" driver, reassigning appropriately. You'd be likely asked to attach your /var/log/Xorg.0.log by the desktop people; please attach it (and in case you have /etc/X11/xorg.conf, please attach it as well).
Comment 5 Huub Schaeks 2009-05-03 08:44:28 EDT
Yes, I use the ati driver, that is, I haven't installed the fglrx driver which doesn't support my card anyway, iirc.

I will attach my xorg.conf and Xorg.0.log both with and without kernel mode setting.
Comment 6 Huub Schaeks 2009-05-03 08:45:26 EDT
Created attachment 342225 [details]
My xorg.conf
Comment 7 Huub Schaeks 2009-05-03 08:46:34 EDT
Created attachment 342226 [details]
My Xorg.0.log without kernel mode setting (i.e. using nomodeset)
Comment 8 Huub Schaeks 2009-05-03 08:56:58 EDT
This bug report can be closed. Upgrading to the 2.6.29.1-111.fc11 kernel fixed this issue for me.

Thanks

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