Public bug reported: Box is connected to new LG LED TV over HDMI. After resuming from standby, the screen is completely scrambled. Like it is broken in diagonal lines.
If the color on the screen are changed, it is visible on the screen, but not the shapes. Like bad sync. Switching between HDMI ports is very fast on this TV, so maybe there is some caching envolved. It happens only if the TV was turned off (put on standby) during time Ubuntu was on suspend! The proprietary driver doesn't have this problem (has another one, so can't use it). I have found a quick workaround for this problem by switching screens (Ctrl+Alt+F1 -> Ctrl+Alt+F7). This corrects the display. Info: Card: HD4250 lsb_release -rd: Description: Ubuntu 12.04.1 LTS Release: 12.04 xserver-xorg-video-ati: Installed: 1:6.14.99~git20111219.aacbd629-0ubuntu2 Candidate: 1:6.14.99~git20111219.aacbd629-0ubuntu2 Version table: *** 1:6.14.99~git20111219.aacbd629-0ubuntu2 0 500 http://us.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages 100 /var/lib/dpkg/status xserver-xorg-video-radeon: Installed: 1:6.14.99~git20111219.aacbd629-0ubuntu2 Candidate: 1:6.14.99~git20111219.aacbd629-0ubuntu2 Version table: *** 1:6.14.99~git20111219.aacbd629-0ubuntu2 0 500 http://us.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages 100 /var/lib/dpkg/status ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: xserver-xorg-video-radeon 1:6.14.99~git20111219.aacbd629-0ubuntu2 ProcVersionSignature: Ubuntu 3.2.0-35.55-generic 3.2.34 Uname: Linux 3.2.0-35-generic x86_64 ApportVersion: 2.0.1-0ubuntu17.1 Architecture: amd64 Date: Mon Jan 14 10:31:44 2013 DistroCodename: precise DistroVariant: ubuntu EcryptfsInUse: Yes InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) MarkForUpload: True SourcePackage: xserver-xorg-video-ati UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: xserver-xorg-video-ati (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug hd4250 hdmi precise resume ubuntu ** Attachment added: "wakeup" https://bugs.launchpad.net/bugs/1099327/+attachment/3482744/+files/wakeup -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-ati in Ubuntu. https://bugs.launchpad.net/bugs/1099327 Title: [HD4250] After resume, screen over HDMI is scrambled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1099327/+subscriptions _______________________________________________ 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