*** This bug is a duplicate of bug 907381 ***
https://bugs.launchpad.net/bugs/907381
Goran Obal, while the hardware under the hood is different between yours and
LP#907381, for now let us mark this a duplicate given the scope of the hardware
at issue (graphics card), and problem under
Just reporting back after a while... Workaround works. Not one single
incident since the last time I wrote here.
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https://bugs.launchpad.net/bugs/1293425
Title:
[Dell Vostro 3550]
I think the workaround can almost be confirmed, I no longer have issues
described in this bug report. I am only waiting for Lee Willis to
confirm that it works the same for him and IMHO then the workaround can
be official.
I have made a script (path-to-my-script) with contents:
xinput disable 7
Workaround seems to work. It's been a week and the
switching/mirroring/turning off of monitors hasn't happened.
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https://bugs.launchpad.net/bugs/1293425
Title:
[Dell Vostro 3550]
Found a related bug IMHO:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1063658
With that one 'xinput disable x' was also workaround.
If you go and read that bug report, you can see that it really is about the
same thing, only that the user didn't use external monitor for a while and when
I have found a possible workaround.
For two days now I haven't had spontaneous monitor/resolution swithing, here's
what I have done.
Immediately after boot I launch terminal and do the following:
Vostro-3550:~$ xinput
⎡ Virtual core pointer id=2[master pointer
OK, spontaneous switch just happened with Intel GPU.
user@DELL-Vostro-3550:~$ uptime
13:09:48 up 2:43, 2 users, load average: 0,22, 0,14, 0,08
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** Changed in: xorg (Ubuntu)
Status: Incomplete = New
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https://bugs.launchpad.net/bugs/1293425
Title:
[Dell Vostro 3550] Display resolution keeps switching with external
It just happened on 14.04 - my internal laptop monitor got disabled and now I
am writing with only external monitor enabled...
Let's see how AMD drivers do.
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Reportin first test with AMD drivers. With AMD GPU enabled, I have massive
screen corruption if I enable both monitors. If I only enable one, corruption
is no longer present, however spontaneous switching/mirroring occurs.
Will now switch to Intel GPU and report back.
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You received this bug
Goran Obal, thank you for reporting this and helping make Ubuntu better.
Could you please test for this with the latest development release of
Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-
live/current/ .
If it remains an issue, please just make a comment to this.
**
** Description changed:
- My laptop is DELL Vostro 3550. BIOS A11.
- If I use external monitor and extend my desktop to both the built-in laptop
display and the external LCD, the display settings are auto-changed by the
system. This may include:
- - Resetting to mirrored displays at 1024x768
-
I am now using Ubuntu 14.04 from the link above. At the time of starting this
bug report I was using 13.04 (raring) and then also 13.10 (saucy) but the
problem was the same with both. Will see how will it be with 14.04.
So far I have noticed one difference though! If I did cat
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