First, i apologize for sloppiness. I am using mobile app for first time. I simply upgraded through software upgrader. I am now met with The system is running in low graphics mode. I have AMD/ATI Tahiti xti graphics. So i first tried

sudo apt-get install fglrx

My result was "package fglrx has no installation candidate". Since i wasn't sure that was the issue, i moved on. I tried to see how much space i had with

df -h

and i see that i have more than 90% space being used. This might be the culprit, but trying to delete xsession-errors does not seem to work. It's only my guess that this disc space is being taken up by errors, because my desktop usage is minimal and last i checked, i had a great deal of free space (before upgrade) I did a full backup of Ubuntu partition before upgrading, so i wouldn't mind simply restoring the old desktop, if i could figure out how. Also, this is a dual boot situation, and i notice Windows is no longer in grub. sudo update-grub does nothing for me.

Intel core i7-3770 ivy

16GB ram

Msi r9 280x video card

Ubuntu 14.04 to 16.04


Ubuntu 16.04+ removed FGRLX packages. "amdgpu" and the opensource "radeon" drivers are the currently default installed kernel drivers. I'd suggest upgrading the kernel first, to 4.8+. To install the 16.10 kernel, use this:

sudo apt-get install --install-recommends linux-image-generic-hwe-16.04 xserver-xorg-hwe-16.04

Note: this will update your 16.04.1 installation to 16.04.2, and enable HWE. Kernel 4.8 will also be installed.

If this doesn't work, I'd suggest manually installing a newer mainline kernel. http://kernel.ubuntu.com/~kernel-ppa/mainline/

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