[Bug 41079] New: xorg-r600: display (sometimes) doesn't get updated or only partially

[bugzilla-daemon@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=41079

           Summary: xorg-r600: display (sometimes) doesn't get updated or
                    only partially
           Product: Mesa
           Version: git
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r600
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: debian@carbon-project.org


Created an attachment (id=51451)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=51451)
Xorg.0.log from the R600G run (version: Mesa/4a96a02d)

DDX:     Mesa/Gallium/xorg-r600 (Git master/4a96a02d)
X:       1.11.0
libdrm2: 2.4.26

This bug can be seen in many applications, e.g. on loading of a website in
Iceweasel or in less, when displaying a text file. AFAIKT it's always
reproducible in Konsole/less:
1. Open a text file.
2. Press End.

Instead of immediately displaying the end of the file, nothing (visible)
happens*, only when you press the up arrow (down arrow doesn't work for me),
the display gets updated and you see almost the end of the file (except the
last line due to the up arrow key depression).

* The blinking cursor gets displayed in the middle of the file name in the
lower left corner.

Again (as with bug #40986), no screenshot possible, because as soon as I press
Print, the screen also gets updated and the updated screen ends up in the
screenshot.

Please let me know, when you need more information.

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