Still affecting 12.04.3 + 3.8.0-36 But the brightness control issue (bug 1243508) is now resolved I will remove the blocker tags.
** Attachment added: "Xorg.0.log.old" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati-lts-raring/+bug/1243648/+attachment/4010698/+files/Xorg.0.log.old ** Changed in: xserver-xorg-video-ati-lts-raring (Ubuntu) Importance: Medium => Low ** Tags removed: blocks-hwcert blocks-hwcert-enablement ** Description changed: CID: 201107-8258 Lenovo ThinkPad Edge E525 With the D-Sub cable connected to an external monitor, this system was unable to use "Mirror" or "Extended" display mode. Verified with the highest and lowest resolution, the problem still exist. Desktop could be display on external / laptop monitor only. - However, these two display mode works fine with radeon driver on HDMI output, and this D-Sub output issue could be fixed by installing the proprietary driver. - The brightness control issue (bug 1243508) will make this bug becomes a blocker as well. + However, these two display mode works fine with radeon driver on HDMI + output, and this D-Sub output issue could be fixed by installing the + proprietary driver. Radeon driver version: ubuntu@201107-8258:~$ dpkg -l | grep radeon ii libdrm-radeon1 2.4.43-0ubuntu0.0.2 Userspace interface to radeon-specific kernel DRM services -- runtime ii radeontool 1.6.2-1.1 utility to control ATI Radeon backlight functions on laptops ii xserver-xorg-video-radeon-lts-raring 1:7.1.0-0ubuntu2~precise1 X.Org X server -- AMD/ATI Radeon display driver + + WORKAROUND: + Please install the fglrx proprietary driver. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: xserver-xorg-video-radeon-lts-raring 1:7.1.0-0ubuntu2~precise1 ProcVersionSignature: Ubuntu 3.8.0-29.42~precise1-generic 3.8.13.5 Uname: Linux 3.8.0-29-generic x86_64 ApportVersion: 2.0.1-0ubuntu17.5 Architecture: amd64 Date: Wed Oct 23 06:23:49 2013 InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release amd64 (20130820.1) MarkForUpload: True ProcEnviron: - TERM=xterm - PATH=(custom, no user) - LANG=en_US.UTF-8 - SHELL=/bin/bash + TERM=xterm + PATH=(custom, no user) + LANG=en_US.UTF-8 + SHELL=/bin/bash SourcePackage: xserver-xorg-video-ati-lts-raring UpgradeStatus: No upgrade log present (probably fresh install) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1243648 Title: AMD Radeon 6480G[1002:9648] Unable to use Mirror/Extended display on D-Sub cable with radeon driver To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati-lts-raring/+bug/1243648/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
