Sounds like this got fixed in the kernel a while ago; since there's been no subsequent comments I'm going to assume the problem is resolved.
See also bug 992346 for the more general problem of invalid edid and working around it by installing an alternate EDID file. ** Changed in: xserver-xorg-video-ati (Ubuntu) Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-ati in Ubuntu. https://bugs.launchpad.net/bugs/612687 Title: [drm:radeon_dvi_detect] *ERROR* DVI-I-2: probed a monitor but no|invalid EDID To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/612687/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp