duffymcdrew
February 17th, 2016, 05:18 AM
I finally decided to upgrade an old desktop from 12.04 to 14.04. Its an AMD system with onboard radeon graphics...
$ lspci |grep VGA
01:05.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RS880 [Radeon HD 4250]
According to this (https://help.ubuntu.com/community/RadeonDriver#Fully_supported) it should be supported by 14.04, but prior to the upgrade I got the Unity3D (https://wiki.ubuntu.com/X/Bugs/UpdateManagerWarningForUnity3D) warning. I had no graphics issues at 12.04 and was running 1920x1080 (or 1680x1050). So despite the warning, I upgraded anyways, and of course, the graphics are now messed up. It doesn't seem to be recognizing the monitor (an Acer H233H connected via VGA). The Display settings labels it as a 'Built-in Display' and only gives me a resolution option of 1400x1050. The upgrade was done while connected via a KVM switch, which perhaps had something to do with it? I did try connecting the display directly and reboot, but still only gave 1400x1050. I tried this (https://wiki.ubuntu.com/X/Troubleshooting/VideoDriverDetection#Problem:_Need_to_purge_-fglrx) as well, but no luck (however this was also done over the KVM)
Any thoughts?
$ lspci |grep VGA
01:05.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RS880 [Radeon HD 4250]
According to this (https://help.ubuntu.com/community/RadeonDriver#Fully_supported) it should be supported by 14.04, but prior to the upgrade I got the Unity3D (https://wiki.ubuntu.com/X/Bugs/UpdateManagerWarningForUnity3D) warning. I had no graphics issues at 12.04 and was running 1920x1080 (or 1680x1050). So despite the warning, I upgraded anyways, and of course, the graphics are now messed up. It doesn't seem to be recognizing the monitor (an Acer H233H connected via VGA). The Display settings labels it as a 'Built-in Display' and only gives me a resolution option of 1400x1050. The upgrade was done while connected via a KVM switch, which perhaps had something to do with it? I did try connecting the display directly and reboot, but still only gave 1400x1050. I tried this (https://wiki.ubuntu.com/X/Troubleshooting/VideoDriverDetection#Problem:_Need_to_purge_-fglrx) as well, but no luck (however this was also done over the KVM)
Any thoughts?