Public bug reported: System: PowerMac 7,2 Video card: Nvidia GeForce 6800 GT DDL Display: Apple Cinema 30 inch
On this machine the desktop is shown twice vertically, full width half height. There are no other artifacts or tearing. I have another PowerMac (11,2 with Nvidia Quadro FX 4500) where this setup works correctly. If I manually add the missing 2500x1600 mode using xrandr --output DVI-I-1 --mode 2560x1600 the xserver seems to reset immediately and go to a login screen split as above. Ubuntu Mate 16.04 lsb_release -rd: Description: Ubuntu 16.04.1 LTS Release: 16.04 xserver-xorg-video-nouveau: Installed: 1:1.0.12-1build2 Candidate: 1:1.0.12-1build2 Version table: *** 1:1.0.12-1build2 500 500 http://us.ports.ubuntu.com/ubuntu-ports xenial/main powerpc Packages 100 /var/lib/dpkg/status ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xserver-xorg-video-nouveau 1:1.0.12-1build2 ProcVersionSignature: Ubuntu 4.4.0-31.50-powerpc64-smp 4.4.13 Uname: Linux 4.4.0-31-powerpc64-smp ppc64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: powerpc CurrentDesktop: MATE Date: Thu Jul 21 16:48:50 2016 InstallationDate: Installed on 2016-05-30 (51 days ago) InstallationMedia: Ubuntu-MATE 16.04 LTS "Xenial Xerus" - Release powerpc (20160420.1) SourcePackage: xserver-xorg-video-nouveau UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: xserver-xorg-video-nouveau (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug powerpc xenial ** Attachment added: "dmesg and X.org.log" https://bugs.launchpad.net/bugs/1605413/+attachment/4704971/+files/dmesg%20and%20Xorg.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1605413 Title: dual link isn't properly configured To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1605413/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs