Bug 19363 - Font corruption regression on RV250 with 6.9.0
Summary: Font corruption regression on RV250 with 6.9.0
Status: RESOLVED FIXED
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/Radeon (show other bugs)
Version: 6.9.0
Hardware: x86 (IA32) Linux (All)
: medium normal
Assignee: xf86-video-ati maintainers
QA Contact: Xorg Project Team
URL:
Whiteboard:
Keywords: regression
Depends on:
Blocks:
 
Reported: 2009-01-01 15:27 UTC by Robert Hancock
Modified: 2009-10-11 13:07 UTC (History)
0 users

See Also:
i915 platform:
i915 features:


Attachments
Screenshot showing font corruption (144.00 KB, image/png)
2009-01-01 15:28 UTC, Robert Hancock
no flags Details
Xorg.0.log from X startup (62.41 KB, text/plain)
2009-01-01 15:29 UTC, Robert Hancock
no flags Details

Description Robert Hancock 2009-01-01 15:27:14 UTC
On my Compaq Presario X1000 laptop with ATI Mobility Radeon 9000 chipset, I am getting corruption of text displays with garbage lines of pixels above the characters in some situations. Will attach screenshot.

This is with xorg-x11-drv-ati from Fedora 10: xorg-x11-drv-ati-6.9.0-63.fc10.i386

With Fedora 9 which used the 6.8.0 driver I did not see this problem.
Comment 1 Robert Hancock 2009-01-01 15:28:36 UTC
Created attachment 21621 [details]
Screenshot showing font corruption

See the junk pixels in the first body text under "Comment #9" and in the header text for "Comment #10".
Comment 2 Robert Hancock 2009-01-01 15:29:07 UTC
Created attachment 21622 [details]
Xorg.0.log from X startup
Comment 3 Michel Dänzer 2009-01-02 03:15:56 UTC
Does it still happen with 6.9.0.91 or current xf86-video-ati Git?

Does Option "RenderAccel" "off" work around it?
Comment 4 Robert Hancock 2009-01-04 14:26:21 UTC
Disabling RenderAccel appears to work around the problem. I will try and get a newer version of the driver built and try that.
Comment 5 Robert Hancock 2009-01-04 15:31:58 UTC
Current git does not appear to have the problem.. question is if there's a patch that could be backported into the Fedora 10 version..
Comment 6 Michel Dänzer 2009-01-05 00:37:38 UTC
(In reply to comment #5)
> Current git does not appear to have the problem.. question is if there's a
> patch that could be backported into the Fedora 10 version..

git bisect should help isolate the change that fixed it.
Comment 7 Alex Deucher 2009-01-05 06:46:17 UTC
It's probably:
783cdb7374941bb1d2b63eea375fbf2f1b808cc3
Comment 8 Robert Hancock 2009-01-05 16:27:08 UTC
I don't think so, that commit refers to this Fedora bug:

https://bugzilla.redhat.com/show_bug.cgi?id=469556

which states the patch is in xorg-x11-drv-ati-6.9.0-61.fc10, so if that fixed it I would not be seeing this problem. Also that refers to EXA only, whereas this problem shows up in both XAA and EXA.
Comment 9 Robert Hancock 2009-10-11 13:07:23 UTC
No longer a problem in Fedora 11.


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