https://bugzilla.kernel.org/show_bug.cgi?id=29372
Summary: KMS - radeon (Uhhuh. NMI received for unknown reason) Product: Drivers Version: 2.5 Kernel Version: 2.6.37.x Platform: All OS/Version: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) AssignedTo: drivers_video-dri@kernel-bugs.osdl.org ReportedBy: tomasi@cli.di.unipi.it CC: alexdeucher@gmail.com Regression: No
I noticed that when I run: xset dpms force standby or echo "low" > /sys/class/drm/card0/device/power_profile for my ATI Radeon Mobile X1400 (I think r5xx) I receive this advise from kernel: --- Uhhuh. NMI received for unknown reason a1 on CPU 0. You have some hardware problem, likely on the PCI bus. Dazed and confused, but trying to continue --- or something like. With latest commit on master branch of xf86-video-ati: http://cgit.freedesktop.org/xorg/driver/xf86-video-ati/ my PC go on freeze after some stanby. Now I'm using the xf86-video-ati at latest commit at 2011-02-15 16:24:23 (4d7e1498f7d9eb50e2eddabca193fc27bde24f0e)
Best regards, Emanuele