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I posted this question as I am encountering display problems after upgrading Ubuntu 15.10 to 16.04. I went into 'additional drivers' & noticed this:

enter image description here

I was wondering whether purging the current drivers & 'reinstalling' them again would help detect the graphic hardware I have on my system. For info, my system is a Lenovo X220 Thinkpad: i5 2420M 6Gb RAM Onboard Graphic Card

Any suggestions would be great help. Many thanks,

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  • It not clear the problem is caused by anything related to the Intel's graphics driver. There is also not much to reinstall, as far as "them" goes. Apr 27, 2016 at 11:32

2 Answers 2

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I had a similar issue, and this worked for me:

sudo apt-get update
sudo apt-get install --reinstall xserver-xorg-video-intel xserver-xorg-core
sudo dpkg-reconfigure xserver-xorg

Followed by a reboot. Was having many irritating graphics crashes before, none since. It oddly didn't make Ubuntu recognise the device, but at least I'm not getting crashes now.

Adapted from original solution here.

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    Thanks Sam. I ended up reinstalling Ubuntu 16.04, which went fine. Upgrading Ubuntu seemed to have caused the problems. Now its working fine. I cant test your solution as I do not have the problem anymore so Im not sure whether to accept it to help others or upvote & leave the question open (have upvoted regardless).
    – Kayote
    May 4, 2016 at 5:26
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    Since yesterday I am no longer able to log on to any DE in a laptop with a Sky Lake card and I suspect it is also a drivers issue. Unfortunately, reinstalling Xorg as you suggest did not fix my problem. Aug 3, 2016 at 8:35
  • This worked for me after installing ubuntu-desktop over kubuntu (16.10)
    – Afilu
    Nov 14, 2016 at 20:37
  • This solved my error where the Intel processor fan not being detected by Ubuntu, thanks. Feb 20, 2017 at 17:41
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    sudo dpkg-reconfigure xserver-org returns not installed error on 16.04 LTS for me...
    – Erik
    Jan 4, 2018 at 9:45
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Using an updated gcc (6.2.0) and a newer kernel (4.8) was helpful for me. I couldn't upgrade to 16.04 from 14.04 and couldn't risk destroying a system I've built for years. Looks like I'm going to be building my Ubuntu software manually from now on..

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