That is funny. For me everything worked fine after upgrading 14.04. The dual monitor set up works briliantly after using the additional driver package for ati radeon graphic card adapters (fglrxx-updates).
It stopped working and producing exactly the same behaviour after working on another issue with compiz (skydome, cube rotating not working properly under 14.04). After trying to fix that, it fails, and the dual monitor vanished after logging in, leaving two black blank screens. In the error log there were repeatedly the above mentioned message. The odd workaround works (plugging off), after changing from Terminal 8 to 7 again (ctrl-alt-F8 and then ctrl-alt-F7 again), then immediately the second monitor came back again.... -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1124328 Title: *ERROR* failed to set mode on [CRTC:7] Status in The Linux Kernel: Invalid Status in “linux” package in Ubuntu: Incomplete Status in “xserver-xorg-video-intel” package in Ubuntu: Opinion Status in Fedora: Unknown Bug description: When I boot I receive this error. This is the same bug being tracked (and possibly ignored) by redhat. Please see the link for logs that others have submitted etc... https://bugzilla.redhat.com/show_bug.cgi?id=753050 I am using a Thinkpad T430s docked with DVI monitor and VGA monitor (a common configuration I would imagine). I read that there is a hardware limitation for supporting LVDS+DVI+VGA concurrently, but since the laptop is docked (and screen closed) I don't believe this explains the bug. For the record, I am using Ubuntu Release: 12.10 kernel 3.5.0-23-generic Graphics: 00:02.0 VGA compatible controller [0300]: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) Subsystem: Lenovo Device [17aa:21fb] Kernel driver in use: i915 Please let me know how I can be of any further help. To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1124328/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
