Created attachment 46038 [details] 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.
Created attachment 46039 [details] dmesg output
Created attachment 46040 [details] xorg log using nouveau driver
Created attachment 46041 [details] xorg log using nv driver
Oh, perhaps I should mention that the white spots/dashes are the "snow", which changes as I move a window around. The larger white region is part of a firefox window that I was moving.
It appears that this bug report has laid dormant for quite a while. Sorry we haven't gotten to it. Since we fix bugs all the time, chances are pretty good that your issue has been fixed with the latest software. Please give it a shot. (Linux kernel 3.10.7, xf86-video-nouveau 1.0.9, mesa 9.1.6, or their git versions.) If upgrading to the latest isn't an option for you, your distro's bugzilla is probably the right destination for your bug report. In an effort to clean up our bug list, we're pre-emptively closing all bugs that haven't seen updates since 2011. If the original issue remains, please make sure to provide fresh info, see http://nouveau.freedesktop.org/wiki/Bugs/ for what we need to see, and re-open this one. Thanks, The Nouveau Team
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