https://bugs.freedesktop.org/show_bug.cgi?id=34972

Summary: [nouveau] Screen blinking on dualhead Product: DRI Version: XOrg CVS Platform: x86 (IA32) OS/Version: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/other AssignedTo: dri-devel@lists.freedesktop.org ReportedBy: mad.f3ka@gmail.com

Sometimes screen blinks to black and returns to normal on both two monitors.

dmesg says: [drm] nouveau 0000:06:00.0: Allocating FIFO number 4 [drm] nouveau 0000:06:00.0: nouveau_channel_alloc: initialised FIFO 4 [drm] nouveau 0000:06:00.0: nouveau_channel_free: freeing fifo 4 [drm] nouveau 0000:06:00.0: DDC responded, but no EDID for VGA-1 [drm] nouveau 0000:06:00.0: Load detected on output A [drm] nouveau 0000:06:00.0: DDC responded, but no EDID for DVI-I-1 [drm] nouveau 0000:06:00.0: Load detected on output C [drm] nouveau 0000:06:00.0: DDC responded, but no EDID for VGA-1 [drm] nouveau 0000:06:00.0: Load detected on output A

Software versions: kernel 2.6.37.2 libdrm 2.4.23 mesa 7.10.1 xf86-video-nouveau 0.0.16_git20101217-1

Hardware: 06:00.0 VGA compatible controller: nVidia Corporation NV43 [GeForce 6600] (rev a2)