** Changed in: xserver-xorg-driver-ati
Status: Confirmed => Unknown
** Bug watch added: gitlab.freedesktop.org/drm/amd/issues #315
https://gitlab.freedesktop.org/drm/amd/issues/315
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** Changed in: xserver-xorg-driver-ati
Status: Won't Fix = Confirmed
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https://bugs.launchpad.net/bugs/1085338
Title:
One pixel column that belongs in one
The problem seems to be an upstream one as seen in the comments
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https://bugs.launchpad.net/bugs/1085338
Title:
One pixel column that belongs in one monitor
shankao, this bug was reported a while ago and there hasn't been any
activity in it recently. We were wondering if this is still an issue? If
so, could you please test for this with the latest development release
of Ubuntu? ISO images are available from http://cdimage.ubuntu.com
Nope, it's not a recent regression. It's being happening since oneiric at
least, or that's when I noticed it.
I have not tried with anything newer than the latest development raring that I
use currently.
I think that it makes sense to contact X.org next and link them to this bug
report
**
I just got an answer in there:
This is a limitation due to the way xrandr works. It uses a single
surface for all enabled displays rather than one surface per display.
The display hardware has alignment requirements that can cause this
situation since we align the start address down. The
Launchpad has imported 3 comments from the remote bug at
https://bugs.freedesktop.org/show_bug.cgi?id=58652.
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
I'm not able to reproduce on a 1920x1200 Dell monitor running -ati on
precise on a PC, although not with an HD 6310 (I don't have that card).
If you can suggest other information that would help us reproduce the
bug, I'm willing to try. But since you've ruled out it being a recent
regression,
** Package changed: xorg (Ubuntu) = xserver-xorg-video-ati (Ubuntu)
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Title:
One pixel column that belongs in one monitor
Is this a new behavior? Did you see this on quantal? (Or, can you try
booting into a quantal livecd image, set up the external monitor, and
see if it happens then as well.) If you didn't see it in quantal, did
it occur as soon as you upgraded or installed, or did it occur only
later?
I notice
Actually, I have seen these problem since the time of oneiric (around the time
when I bought this laptop), but it's only evident on fullscreen -like while
watching a movie- and so, I always ended forgetting to do the bug report.
Anyway, the effect happens all the time, and yes, it happens
Have you got a different resolution monitor that you could borrow to try it
with?
I notice the monitors you are using are 1366x768 and I've seen other problems
with that res because it's not divisible by 8
exactly, and various things sometimes get upset.
(Only a hunch, may be wrong).
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You
Just trying now with a 1920x1200 monitor (HP Compaq LA2405x) and I'm
still seeing the same problem.
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https://bugs.launchpad.net/bugs/1085338
Title:
One pixel
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