[Bug 36560] New: snow when motion is present (NV15)

* [Bug 36560] New: snow when motion is present (NV15)
@ 2011-04-25  5:07 bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
       [not found] ` <bug-36560-8800-V0hAGp6uBxMKqLRl/0Ahz6D7qz1kEfGD2LY78lusg7I@public.gmane.org/>
  0 siblings, 1 reply; 6+ messages in thread
From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ @ 2011-04-25  5:07 UTC (permalink / raw)
  To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW

https://bugs.freedesktop.org/show_bug.cgi?id=36560

           Summary: snow when motion is present (NV15)
           Product: xorg
           Version: git
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
        ReportedBy: jmccarty-vRdzynncJC4@public.gmane.org
         QAContact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org

Created an attachment (id=46038)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=46038)
snow with motion

When nothing is moving on the screen, the nouveau driver displays things just
fine. When there is motion on the screen, I see some "snow" (see the attached
picture). When the motion stops, the snow disappears. The amount of snow
appears proportional to how much of the screen is changing. The "nv" driver
doesn't have this issue, nor did the proprietary nvidia driver (71.86.07), when
it still supported recent versions of X. I get the same results using a
different CRT.

Although the problem is most obvious in X, it appears on the framebuffer
console as well: if I boot with init=/bin/sh, so that X never loads, "modprobe
nouveau", and ls -R a big directory, I see the same snow on the console.

I tested with yesterday's git://anongit.freedesktop.org/nouveau/linux-2.6 .

My card is a Geforce 2 GTS (NV15).

I'll attach dmesg output and Xorg logs.

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