Bug 7202

Summary: Failure to redraw the screen when it needs to with backing store enabled
Product: xorg Reporter: Doug Goldstein <cardoe>
Component: Server/GeneralAssignee: Xorg Project Team <xorg-team>
Status: RESOLVED INVALID QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: high CC: dberkholz, flameeyes
Version: 7.1 (2006.05)   
Hardware: x86 (IA32)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
xorg.conf
none
Xorg.0.log none

Description Doug Goldstein 2006-06-12 22:42:54 UTC 
After switching windows or usually desktop windows it fails to redraw all or
parts of the screen. Clickable URLs will always redraw (as can be seen in #6).
Some tearing will also occur when the window under a popup gets scrolled.
Basically LOTS of regressions and issues exist with xorg-server-1.1 & ati driver
6.6.0 that wasn't there in the last versions.

http://dev.gentoo.org/~cardoe/files/Screenshot-4.png
http://dev.gentoo.org/~cardoe/files/Screenshot-5.png
http://dev.gentoo.org/~cardoe/files/Screenshot-6.png
http://dev.gentoo.org/~cardoe/files/Screenshot-7.png
http://dev.gentoo.org/~cardoe/files/Screenshot-8.png

Issue exists with EXA or XAA (except where noted in Screenshot #7). And with or
without Composite enabled.
Comment 1 Doug Goldstein 2006-06-12 22:44:56 UTC 
Forgot to mention this is reproducable about 1/3rd of the time. But 100%
reproducable everytime I have Azureus running on another desktop.

Currently I'm being bit by the Azureus & GTK+ 2.8.17 bug so I can't click off
the error msg in all those screenshots.
Comment 2 Michel Dänzer 2006-06-12 23:35:14 UTC 
Please attach (as opposed to paste or link to) full config and log files.
Comment 3 Doug Goldstein 2006-06-13 15:48:06 UTC 
Created attachment 5898 [details]
xorg.conf

xorg.conf with EXA & Composite currently disabled
Comment 4 Doug Goldstein 2006-06-13 15:48:41 UTC 
Created attachment 5899 [details]
Xorg.0.log

Xorg.0.log
Comment 5 Michel Dänzer 2006-06-14 00:16:15 UTC 
Try not enabling backing store.
Comment 6 Doug Goldstein 2006-06-21 08:58:46 UTC 
disabling backing store fixed the issue. It also fixed firefox scrolling at
terribly slow speeds when setup with EXA disabled.
Comment 7 Michel Dänzer 2006-06-21 09:10:49 UTC 
The current backing store implementation has been known to perform rather bad
for a long time, apparently it's even broken now. Do you need it for anything?
Comment 8 Michel Dänzer 2006-06-30 01:57:08 UTC 
*** Bug 7368 has been marked as a duplicate of this bug. ***
Comment 9 Michel Dänzer 2006-06-30 01:58:24 UTC 
See also bug 6663.
Comment 10 Daniel Stone 2007-02-27 01:32:31 UTC 
Sorry about the phenomenal bug spam, guys.  Adding xorg-team@ to the QA contact so bugs don't get lost in future.
Comment 11 chemtech 2013-03-15 14:47:51 UTC 
Doug Goldstein 
Do you still experience this issue with newer soft ?
Please check the status of your issue.
Comment 12 Adam Jackson 2018-06-11 18:32:03 UTC 
The backing store implementation now is entirely unlike what it was in 2006.

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