It isn't invalid. This is a very real issue affecting the existing Ubuntu release.
I have been personally compiling 3.12 kernels from kernel.org as a workaround that works for me, so I don't need anything. I'd suggest closing as Won't Fix since Ubuntu won't provide a fix. -- 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/1242180 Title: saucy regression - three monitors no longer work Status in “linux” package in Ubuntu: Incomplete Status in “xserver-xorg-video-intel” package in Ubuntu: Incomplete Bug description: I've just upgraded from raring. There I had 3 monitors attached to my Intel HD Graphics 4000 (i7 3770 cpu) where it all works perfectly. (Two monitors are identical flanking my centre displayport monitor.) In saucy I can get any two monitors working, and any attempt to get all 3 working results in an error about setting crtc with a different number. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: xserver-xorg-video-intel 2:2.99.904-0ubuntu2 ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3 Uname: Linux 3.11.0-12-generic x86_64 ApportVersion: 2.12.5-0ubuntu2 Architecture: amd64 Date: Sat Oct 19 14:28:59 2013 MarkForUpload: True SourcePackage: xserver-xorg-video-intel UpgradeStatus: Upgraded to saucy on 2013-10-19 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1242180/+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