** Changed in: xserver-xorg-driver-ati
Status: Confirmed => Invalid
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https://bugs.launchpad.net/bugs/915408
Title:
Garbled display on external screen when using 1920x1080
Joe Barnett, this bug report is being closed due to your last comment
https://bugs.launchpad.net/xserver-xorg-driver-ati/+bug/915408/comments/28
regarding this being fixed with an update. For future reference you can manage
the status of your own bugs by clicking on the current status in the
** Changed in: linux
Status: Confirmed = Fix Released
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https://bugs.launchpad.net/bugs/915408
Title:
Garbled display on external screen when using 1920x1080 instead of
It appears that we may well need both of these fixes together:
commit 9aa59993e226af94088adaee993eb8cfd33ae295
Author: Alex Deucher alexander.deuc...@amd.com
Date: Fri Jan 20 15:03:30 2012 -0500
drm/radeon/kms: refine TMDS dual link checks
and:
commit
appears to be fixed upstream, by using latest kernel image form
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.3-precise/ . only
problem remaining is that it picks 1280x960 as the
default/initial/lightdm resolution for both screens, which is fine, but
everything looks quite large.
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** No longer affects: xserver-xorg-video-ati (Ubuntu)
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Title:
Garbled display on external screen when using 1920x1080 instead of
1920x1200
To
** Changed in: linux
Status: Unknown = Confirmed
** Changed in: linux
Importance: Unknown = Medium
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Title:
Garbled display on external
Could you test one additional kernel? This is the latest upstream stable kernel:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.3-rc6-precise/
This will tell us if the fix is in the mainline kernel.
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confirmed still seeing the problem with:
$ uname -a
Linux taplop 3.3.0-030300rc6-generic #201203032235 SMP Sun Mar 4 03:36:15 UTC
2012 x86_64 x86_64 x86_64 GNU/Linux
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This issue appears to be an upstream bug, since you tested the latest
upstream kernel. Would it be possible for you to open an upstream bug
report at bugzilla.kernel.org [1]? That will allow the upstream
Developers to examine the issue, and may provide a quicker resolution to
the bug.
If you
** Bug watch added: Linux Kernel Bug Tracker #42887
http://bugzilla.kernel.org/show_bug.cgi?id=42887
** Also affects: linux via
http://bugzilla.kernel.org/show_bug.cgi?id=42887
Importance: Unknown
Status: Unknown
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If that is the case, it seems the refine_tmds_dual_link_checks.patch
patch does not resolve this bug.
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Title:
Garbled display on external screen
ok, still seeing the problem with:
$ uname -a
Linux taplop 3.2.0-12-generic #21~lp915408 SMP Thu Feb 2 21:24:18 UTC 2012
x86_64 x86_64 x86_64 GNU/Linux
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When you ran the test kernel from
http://people.canonical.com/~jsalisbury/lp915408/, did the uname -a
report only 3.2.0-12-generic as the kernel version? It should have had
the following test appended ~lp915408. If it didn't it may not have
been the correct test kernel.
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** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
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Title:
Garbled display on external screen when using 1920x1080 instead of
** Tags added: corruption
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Title:
Garbled display on external screen when using 1920x1080 instead of
1920x1200
To manage notifications about
went back to the oneiric kernel after it didn't work, but uname at the
time was definitely showing 3.2.0-12-generic ; do you need me to
reinstall and verify more info from uname -a?
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@Joe,
Can you run uname -a, just so I can confirm you received the correct
test kernel?
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Title:
Garbled display on external screen when using
Kernel team - mind rolling a test kernel deb for Joe to test?
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Title:
Garbled display on external screen when using 1920x1080 instead of
Guessing this patch should fix it.
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Patch added: refine_tmds_dual_link_checks.patch
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/915408/+attachment/2708796/+files/refine_tmds_dual_link_checks.patch
** Tags
Based on the upstream bug, it sounds like this is due to a bug in the
kernel so no change needed to X itself. However I'll leave the X task
open for a bit longer so we can track progress.
** Changed in: xserver-xorg-video-ati (Ubuntu)
Status: Triaged = In Progress
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** Changed in: linux (Ubuntu)
Status: New = Confirmed
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Title:
Garbled display on external screen when using 1920x1080 instead of
Building a test kernel now. I'll post a link to the kernel shortly.
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Title:
Garbled display on external screen when using 1920x1080 instead of
There is a test kernel available from the following:
http://people.canonical.com/~jsalisbury/lp915408/
Can you test the kernel and report back if the patch resolves the bug?
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still seeing the same issue with the kernel package from
http://people.canonical.com/~jsalisbury/lp915408/
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Title:
Garbled display on external
** Tags added: patch
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Title:
Garbled display on external screen when using 1920x1080 instead of
1920x1200
To manage notifications about this
** Package changed: xorg (Ubuntu) = xserver-xorg-video-ati (Ubuntu)
** Changed in: xserver-xorg-video-ati (Ubuntu)
Importance: Undecided = High
** Changed in: xserver-xorg-video-ati (Ubuntu)
Status: New = Triaged
** Description changed:
originally reported as bug 813566 :
i
** Bug watch added: freedesktop.org Bugzilla #44755
https://bugs.freedesktop.org/show_bug.cgi?id=44755
** Also affects: xserver-xorg-driver-ati via
https://bugs.freedesktop.org/show_bug.cgi?id=44755
Importance: Unknown
Status: Unknown
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Joe - I've forwarded your bug report upstream to
https://bugs.freedesktop.org//show_bug.cgi?id=44755 - please subscribe
yourself to the CC for that bug in case they need further information or
wish you to test something.
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Launchpad has imported 4 comments from the remote bug at
https://bugs.freedesktop.org/show_bug.cgi?id=44755.
If you reply to an imported comment from within Launchpad, your comment
will be sent to the remote bug automatically. Read more about
Launchpad's inter-bugtracker facilities at
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Title:
Garbled display on external screen when using 1920x1080 instead of
1920x1200
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