After upgrading from the sys-kernel/gentoo-sources-2.6.35-r5 to sys-kernel/gentoo-sources-2.6.37-r1 by screen blinks every minute or so. I use Nouveau driver and I have found the following information in one of the Google groups threads ( http://groups.google.com/group/linux.debian.bugs.dist/browse_thread/thread/e8dc2d1855925bee/dffccca40d8841cf?lnk=gst&q=613571#dffccca40d8841cf ): "I have discovered that the culprit is upowerd which queries the following file: /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/drm/card0/card0-TV-1/status Querying this file by hand makes the screen flicker." So I tried to access this file on my machine and this does cause the screen blinking. People also report this problem is present in 2.6.36 kernel also. Reproducible: Always Steps to Reproduce: 1. emerge sys-kernel/gentoo-sources-2.6.37-r1 2. start the system with NVidia videocard using the Nouveau driver 3. execute the command: cat /sys/devices/pci0000\:00/0000\:00\:01.0/0000\:01\:00.0/drm/card0/card0-TV-1/status and see how the screen blinks.
Does a bug report on https://bugs.freedesktop.org/ exist already?
(In reply to comment #1) > Does a bug report on https://bugs.freedesktop.org/ exist already? I'm not sure, but the following bugs may be related: https://bugs.freedesktop.org/show_bug.cgi?id=34430 https://bugs.freedesktop.org/show_bug.cgi?id=34220 https://bugs.freedesktop.org/show_bug.cgi?id=34972
Please work with the upstream bug. I will monitor and backport any fixes that present themselves.
