** Description changed: - The latest kernel update vmlinuz-3.5.0-18-generic breaks Radeon/KMS - - machine always boots to a corrupted / unusable screen with artifacts. + iMac12 often boots to a corrupted / unusable screen with artifacts. VTs + are unusable. SSH login works and killing and restarting Xorg/lightdm + fixes the screen corruption problem. - Reverting back to vmlinuz-3.5.0-17-generic version fixes the problem. + [ Update: Seems to be reproducible independent of kernel version - both + -17 and -18 give the same results.] + ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: linux-image-3.5.0-17-generic 3.5.0-17.28 ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5 Uname: Linux 3.5.0-17-generic x86_64 ApportVersion: 2.6.1-0ubuntu6 Architecture: amd64 AudioDevicesInUse: - USER PID ACCESS COMMAND - /dev/snd/controlC1: parag 1805 F.... pulseaudio - /dev/snd/controlC0: parag 1805 F.... pulseaudio + USER PID ACCESS COMMAND + /dev/snd/controlC1: parag 1805 F.... pulseaudio + /dev/snd/controlC0: parag 1805 F.... pulseaudio Date: Tue Nov 6 12:33:38 2012 HibernationDevice: RESUME=UUID=a0842c63-8b1e-47c2-8f1a-bdec366ad5bd InstallationDate: Installed on 2012-11-05 (1 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64+mac (20121017.3) MachineType: Apple Inc. iMac12,1 MarkForUpload: True ProcEnviron: - TERM=xterm - PATH=(custom, no user) - XDG_RUNTIME_DIR=<set> - LANG=en_US.UTF-8 - SHELL=/bin/bash + TERM=xterm + PATH=(custom, no user) + XDG_RUNTIME_DIR=<set> + LANG=en_US.UTF-8 + SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-17-generic root=UUID=0c41b65c-406b-4dc3-b100-95f28347cd76 ro quiet splash vt.handoff=7 RelatedPackageVersions: - linux-restricted-modules-3.5.0-17-generic N/A - linux-backports-modules-3.5.0-17-generic N/A - linux-firmware 1.95 + linux-restricted-modules-3.5.0-17-generic N/A + linux-backports-modules-3.5.0-17-generic N/A + linux-firmware 1.95 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/24/12 dmi.bios.vendor: Apple Inc. dmi.bios.version: IM121.88Z.0047.B1F.1201241648 dmi.board.name: Mac-942B5BF58194151B dmi.board.vendor: Apple Inc. dmi.chassis.type: 13 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-942B5BF58194151B dmi.modalias: dmi:bvnAppleInc.:bvrIM121.88Z.0047.B1F.1201241648:bd01/24/12:svnAppleInc.:pniMac12,1:pvr1.0:rvnAppleInc.:rnMac-942B5BF58194151B:rvr:cvnAppleInc.:ct13:cvrMac-942B5BF58194151B: dmi.product.name: iMac12,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1075660 Title: Boots to corrupted/unusable screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1075660/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
