Public bug reported: Binary package hint: xserver-xorg-video-ati
I use two monitor connected via DVI. After suspend to ram and resume, the picture on only one display gets scrambled and unusable. Some Facts: - Everthing runs as expected, but the left display show a picture looking like every fourth pixel is displayed, and the ones in between have the values of their neighbor. The picture is updated and flickerfree. I can attach a foto if it helps.. - Taking a screenshot gives a normal picture. - Disabling KMS by passing radeon.modeset=0 to the kernel solves the problem. I attach 2 dmesg outputs of the resume sequence. Note that with modeset=0 "[drm] Resetting GPU" is output, while with KMS it is not. - It occurs only if using the 2 monitors in "big desktop" mode. - logging out an back in solves it - fglrx (i used it until lucid) had the same issue. It was silently fixed around version 10.2. - Hibernation doesn't work too. It ends up in gdm after resuming. Maybe X crashes, but thats another story. ProblemType: Bug DistroRelease: Ubuntu 10.04 Package: xserver-xorg-video-ati 1:6.13.0-1ubuntu5 ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2 Uname: Linux 2.6.32-22-generic x86_64 Architecture: amd64 Date: Fri May 21 09:40:46 2010 DkmsStatus: MachineType: Dell Inc. Dell XPS420 ProcCmdLine: root=/dev/mapper/lvm_vg-root ro quiet splash ProcEnviron: PATH=(custom, user) LANG=en_US.utf8 SHELL=/bin/bash SourcePackage: xserver-xorg-video-ati dmi.bios.date: 06/23/2008 dmi.bios.vendor: Dell Inc. dmi.bios.version: A06 dmi.board.name: 0TP406 dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 7 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA06:bd06/23/2008:svnDellInc.:pnDellXPS420:pvr:rvnDellInc.:rn0TP406:rvrA01:cvnDellInc.:ct7:cvr: dmi.product.name: Dell XPS420 dmi.sys.vendor: Dell Inc. system: distro: Ubuntu codename: lucid architecture: x86_64 kernel: 2.6.32-22-generic ** Affects: xserver-xorg-video-ati (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug dual-display radeon resume -- Resume with two displays gives scrambled pixels on only one display https://bugs.launchpad.net/bugs/583676 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-ati in ubuntu. _______________________________________________ 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