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According to this bug report, intel-virtual-output encounter some difficulties with xorg-server version 1.17.1:

david@david-ubuntu:~$ intel-virtual-output 
XIO:  fatal IO error 11 (Resource temporarily unavailable) on X server ":0"
      after 20 requests (20 known processed) with 0 events remaining.

As reported by a user, downgrading to version 1.16 would solve the problem. How can I safely downgrade the xorg package?

Pilot6
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David
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1 Answers1

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You can downgrade your xserver-xorg to 1.16 in Ubuntu 14.04 by running

sudo apt-get install xserver-xorg-lts-utopic libqt5gui5 libgles1-mesa-lts-utopic libgles2-mesa-lts-utopic libgl1-mesa-glx-lts-utopic libgl1-mesa-glx-lts-utopic:i386 libglapi-mesa-lts-utopic:i386 libegl1-mesa-drivers-lts-utopic

You can check the version by dpkg -l | grep "ii xserver-xorg-core"

Pilot6
  • 92,169
  • That installed xorg v1.16, but at the next rebbot lead the computer to a black screen before login, maybe due to my previously done configuration for bumblebee... – David Sep 20 '15 at 09:37
  • You will need to re-install all the nvidia stuff. I can't help with bumblebee. – Pilot6 Sep 20 '15 at 09:38
  • Thanks, now I'm trying, perhaps it is convenient to reinstall completely ubuntu and firstly downgrade. Have I to block somehow the xorg version to prevent an upgrade? I think I can mark as solved the answer after that. Thanks – David Sep 20 '15 at 09:42
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    You do not need to block anything. The xorg major versions do not change on regular upgrades. They are in different packages. 3.16 is lts-utopic, 3.17 is lts-vivid. – Pilot6 Sep 20 '15 at 09:54
  • I am running Ubuntu 24.10 and the instruction is not working here. Please provide and update if you or someone else can. Also, it seems that some files may have been deleted on the X-Server ppa. I am not sure if this option is still available Dec. 1,2024. – Stephen Elliott Dec 01 '24 at 09:30