Would it be possible for you to test the latest upstream stable kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.8 stable kernel[0].
If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8.13.10-raring/ ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Tags added: raring regression-update -- 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/1233061 Title: HDMI not working after update to linux image 3.8.0.31.46 Status in “linux” package in Ubuntu: Incomplete Bug description: Operating System: Ubuntu 13.04 64-bit Hardware: Acer Aspire x3450 AMD Athlon II X2 220 Processor x 2; Graphics Gallium 0.4 on AMD RS880; Monitor Samsung Syncmaster P2250. Problem/Bug: HDMI video output from pc to Samsung Syncmaster P2250 via HDMI/DVI adaptor cable no longer works after Ubuntu's Software Updater updated my system from linux-image 3.8.0.30.44 to 3.8.0.31.46. I get an initial purple screen, without the Ubuntu logo, then absolutely nothing. Had to revert to old style analogue connection to make my system useable. --- ApportVersion: 2.9.2-0ubuntu8.3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: study 1937 F.... pulseaudio /dev/snd/controlC0: study 1937 F.... pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. CurrentDmesg: [ 20.247444] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready DistroRelease: Ubuntu 13.04 HibernationDevice: RESUME=UUID=607de3c9-c71d-4386-96d2-787bb2b0fa64 InstallationDate: Installed on 2013-04-28 (154 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) IwConfig: eth0 no wireless extensions. lo no wireless extensions. MachineType: Acer Aspire X3450 MarkForUpload: True Package: linux (not installed) ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-31-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.8.0-31.46-generic 3.8.13.8 RelatedPackageVersions: linux-restricted-modules-3.8.0-31-generic N/A linux-backports-modules-3.8.0-31-generic N/A linux-firmware 1.106 RfKill: Tags: raring Uname: Linux 3.8.0-31-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lp lpadmin plugdev sambashare sudo dmi.bios.date: 10/29/2011 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P01-A2 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: Aspire X3450 dmi.board.vendor: Acer dmi.chassis.type: 3 dmi.chassis.vendor: Acer dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP01-A2:bd10/29/2011:svnAcer:pnAspireX3450:pvr:rvnAcer:rnAspireX3450:rvr:cvnAcer:ct3:cvr: dmi.product.name: Aspire X3450 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1233061/+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