I was able to permanently (I hope) fix the problem. After reading around, examining system files, logs and a lot of guesswork, I noticed that /usr/share/X11/xorg.conf.d had amdgpu configuration along a bunch of others but no intel. So I tried to find a sample file on the web and created (as root) 20-intel.conf containing:
Section "Device" Identifier "Intel Graphics" Driver "intel" EndSection rebooted, and a miracle happened! It loaded with both external monitors working again! Lost the configuration though, but after redoing monitor arrangement etc and rebooting again it was all good. I hope this helps someone. Regards, isotope. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1635906 Title: Low graphics mode in multi monitor setup after upgrade to 16.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1635906/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
