Public bug reported:
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.
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
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
SourcePackage: xserver-xorg-video-ati-lts-raring
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: xserver-xorg-video-ati-lts-raring (Ubuntu)
Importance: Undecided
Assignee: Anthony Wong (anthonywong)
Status: New
** Tags: 201107-8258 amd64 apport-bug blocks-hwcert blocks-hwcert-enablement
precise running-unity taipei-lab
--
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
