[Nouveau] [Bug 39010] New: better handling of large pixmaps

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=39010

           Summary: better handling of large pixmaps
           Product: xorg
           Version: unspecified
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: shiningxc at gmail.com
         QAContact: xorg-team at lists.x.org


Created an attachment (id=48831)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=48831)
possible workaround for 64mb vram cards

Large images in Firefox only show up as black rectangles.

At the same time, the following errors appear in dmesg :
[  590.075369] [drm] nouveau 0000:01:00.0: fail ttm_validate
[  590.075371] [drm] nouveau 0000:01:00.0: validate vram_list
[  590.075374] [drm] nouveau 0000:01:00.0: validate: -12

Test cases :
-
http://geoeyemediaportal.s3.amazonaws.com/assets/images/gallery/ge1/hires/tehran_iran_02_11_10.jpg
- http://xkcd.com/802_large/
-
http://upload.wikimedia.org/wikipedia/commons/5/55/Futuregen_DOE_Concept_art.jpg

References :
- https://bugs.freedesktop.org/show_bug.cgi?id=28763#c15
- http://lists.freedesktop.org/archives/nouveau/2010-February/005125.html

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