Red Hat Bugzilla – Bug 473770
xorg-x11-driver-ati does not use the video card LUT
Last modified: 2009-07-20 04:49:24 EDT
Description of problem:
the ati X11 driver seems not to use the graphic card LUT. The LUT is correctly loaded with calibration info (e.g., by dispwin or xcalib), but this has no visual effect on the monitor. dispwin -V confirms that the LUT is correctly loaded. dispwin -r is executed without any error, but it has no visual effect (e.g., it does not darken or lighten the monitor) as it should have.
Version-Release number of selected component (if applicable):
On a system with an ATI graphic card
Steps to Reproduce:
1. configure X11 to use the ATI driver
2. run dispwin -r
No change in the screen
The screen should darken and then lighten
Downgrading the driver to xorg-x11-drv-ati-6.8.0-19.fc9.i386 (last one available for Fedora 9) solves the problem.
Also the Vesa driver seems to have the same problem.
Thanks for the bug report. We have reviewed the information you have provided above, and there is some additional information we require that will be helpful in our diagnosis of this issue.
Please attach your X server config file (/etc/X11/xorg.conf, if available) and X server log file (/var/log/Xorg.*.log) to the bug report as individual uncompressed file attachments using the bugzilla file attachment link below.
Could you please also try to run without any /etc/X11/xorg.conf (if you have one) whatsoever and let X11 autodetect your display and video card? Attach to this bug /var/log/Xorg.0.log from this attempt as well, please.
We will review this issue again once you've had a chance to attach this information.
Thanks in advance.
Created attachment 325865 [details]
I am having the same problem. My install was an upgrade from Fedora 9. Video card is ATI X550 series. I am attaching the information you requested.
Created attachment 325867 [details]
log file - X11 started with xorg.conf file
Created attachment 325868 [details]
log file - X11 started without xorg.conf file
Created attachment 325989 [details]
X11 log file with F10 driver and my current xorg.conf
Created attachment 325990 [details]
X11 log file with F10 driver and no xorg.conf
Created attachment 325991 [details]
My current xorg.conf
Created attachment 325992 [details]
X11 log file with F9 driver (18.104.22.168-fc9) and my current xorg.conf
Same problem here: downgrading to 6.8 or upgrading to 6.10 solves the LUT problem, but the system cannot suspend to RAM.
I recompiled the package, and I found out that the bug is introduced somewhere by Patch0 (radeon-6.9.0-to-git.patch) and Patch1 (radeon-modeset.patch): no patch at all and the LUT is correctly loaded; those two patches, or all of them, and the LUT is not loaded.
Unfortunately Patch0 seems to be required by all other patches, Patch0 and Patch1 require each other, and they're not granular enough.
If you tell me where the patches come from (I could guess -to-git, but since it requires -modeset, my guess is wrong), I may try to do some regression test to find when the bug was introduced. Or at least it would be easier to report upstream.
Does upgrading to xorg-x11-drv-ati-6.10.0-2.fc10 fix the problem ?
Unfortunately not. Same behavior as 6.9.0-54.
Will this bug be fixed in the upcoming Fedora 11 release?
Hopefully, but not in F11 GA (or 0-day updates), but sometimes early in the life of F11.
I just installed F11: the bug is fixed, at least on my machine.
Reporter, could you confirm please comment 14, please?
I confirm that the bug is fixed in Fedora 11.
I upgraded to Fedora 11 yesterday ... yes, this bug is fixed in 11.
I don't think anybody will fix this in F10. Closing as NEXTRELEASE then. Anybody who is affected by this bug, is advised to upgrade to F11.
Thanks for reporting this bug and patience with us.