Presumably broken in 3.8.13.7 by commit c4c3bc93e257d7d40745eff89b1c556d53a4a9d6 Author: Alex Deucher <alexander.deuc...@amd.com> Date: Tue Jul 30 00:22:53 2013 -0400
drm/radeon/atom: initialize more atom interpretor elements to 0 BugLink: http://bugs.launchpad.net/bugs/1221794 commit 42a21826dc54583cdb79cc8477732e911ac9c376 upstream. The ProcessAuxChannel table on some rv635 boards assumes the divmul members are initialized to 0 otherwise we get an invalid fb offset since it has a bad mask set when setting the fb base. While here initialize all the atom interpretor elements to 0. and fixed (& currently queued for 3.8.13.11) with commit 91f3a6aaf280294b07c05dfe606e6c27b7ba3c72 Author: Alex Deucher <alexander.deuc...@amd.com> Date: Mon Sep 9 10:54:22 2013 -0400 drm/radeon/atom: workaround vbios bug in transmitter table on rs880 (v2) The OUTPUT_ENABLE action jumps past the point in the coder where the data_offset is set on certain rs780 cards. This worked previously because the OUTPUT_ENABLE action is always called immediately after the ENABLE action so the data_offset remained set. In 6f8bbaf568c7f2c497558bfd04654c0b9841ad57 (drm/radeon/atom: initialize more atom interpretor elements to 0), we explictly reset data_offset to 0 between atom calls which then caused this to fail. The fix is to just skip calling the OUTPUT_ENABLE action on the problematic chipsets. The ENABLE action does the same thing and more. Ultimately, we could probably drop the OUTPUT_ENABLE action all together on DCE3 asics. -- 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: Confirmed 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