Comment 59 for bug 712075

Revision history for this message
Greg Edwards (gedwards) wrote :

I see this same issue in 11.10 with the Intel GM45 chipset and a docking station.

Screensaver kicks in and turns off the monitor and it never comes back. I have to switch to a VT and restart lightdm. I see the drm:drm_edid_block_valid error in dmesg.

The 'echo 0 > /sys/module/drm_kms_helper/parameters/poll' workaround resolves the issue.