Bug 487536 - imlib bug with MIT-SHM pixmaps
Summary: imlib bug with MIT-SHM pixmaps
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: imlib
Version: 4.7
Hardware: All
OS: Linux
urgent
urgent
Target Milestone: rc
: ---
Assignee: Matthias Clasen
QA Contact:
URL:
Whiteboard:
: 487537 (view as bug list)
Depends On:
Blocks: 515765
TreeView+ depends on / blocked
 
Reported: 2009-02-26 16:15 UTC by Jeff Bastian
Modified: 2018-10-27 14:26 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of: 357241
Environment:
Last Closed: 2012-06-14 20:45:11 UTC
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)
backported patch from Fedora imlib package (2.71 KB, patch)
2009-02-26 16:16 UTC, Jeff Bastian
no flags Details | Diff

Description Jeff Bastian 2009-02-26 16:15:18 UTC
Description of problem:
This is a clone of bug 357241 for RHEL 4.

imlib doesn't properly check whether the MIT SHM extension supports shared pixmaps.  Shared pixmaps are not available in X drivers using EXA, and they are now disabled by default in the binary blob nvidia version 180 drivers so programs that use imlib, e.g., xchat and kuickshow, have corrupt graphics.

From http://us.download.nvidia.com/XFree86/Linux-x86_64/180.29/README/appendix-b.html 
     Option "AllowSHMPixmaps" "boolean"
     ...
     Default: off (shared memory pixmaps are not allowed).

Originally reported at http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=448360


Version-Release number of selected component (if applicable):
imlib-1.9.13-23.x86_64

How reproducible:
Every time

Steps to Reproduce:
1. Use latest nvidia drivers (version 180 and newer)
2. Launch kuickshow to display an image

  
Actual results:
corrupt display

Expected results:
the image displayed correctly

Additional info:

Comment 1 Jeff Bastian 2009-02-26 16:16:16 UTC
Created attachment 333348 [details]
backported patch from Fedora imlib package

Comment 2 Jeff Bastian 2009-02-26 16:23:29 UTC
*** Bug 487537 has been marked as a duplicate of this bug. ***

Comment 11 Jeff Bastian 2009-08-12 18:17:49 UTC
On a side note, vino was also affected by the change in SHM pixmaps in the nvidia drivers, see bug 493097


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