up vote 24 down vote favorite
16

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. – mikewhatever Apr 27 '16 at 11:32
up vote 27 down vote

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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1  
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 '16 at 5:26
1  
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. – Luís de Sousa Aug 3 '16 at 8:35
    
This worked for me after installing ubuntu-desktop over kubuntu (16.10) – Afilu Nov 14 '16 at 20:37
    
This solved my error where the Intel processor fan not being detected by Ubuntu, thanks. – George Feb 20 '17 at 17:41
    
sudo dpkg-reconfigure xserver-org returns not installed error on 16.04 LTS for me... – Erik yesterday
up vote 0 down vote

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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protected by Community♦ Jun 16 '16 at 20:14

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