Debian Jessie Mate Resolution Fix for an AMD Radeon Card

res_fix.md

Debian Jessie Mate Resolution Fix for an AMD Radeon Card

Note: possibly outdated

How-To

1. Open /etc/apt/sources.list with your favorite text editor
2. Change your deb sources so it looks something like this: deb http://http.us.debian.org/debian/ jessie main contrib non-free
   1. The important part is jessie...non-free
3. Run:

   # apt-get update
   
   # apt-get install firmware-realtek
   
   # apt-get install firmware-linux-nonfree
   

4. Reboot (or maybe just logout?)

Sources

• https://www.linuxquestions.org/questions/linux-kernel-70/radeon-kernel-modesetting-for-r600-or-later-requires-firmware-linux-nonfree-4175506682/
• http://forums.debian.net/viewtopic.php?f=17&t=72645&sid=d4e69e04adf8ad4b3c48ad027e102d54
• https://packages.debian.org/jessie/firmware-realtek

Howdy Ed,
So glad your gist came up first when I Google'd my error in dmesg.
The fix is in and now I can look at my screen without wincing.
You rock sir!

Thank you so much. It works perfectly.
Until now I had problems with my ATI Radeon HD 4250 on Debian 8. But your how-to helps me to correct all of them.

first of all excuse my English I do not speak the idiom but google translate helped me.

Thanks a lot this fix my problem to perfection, it should be noted that I am new to linux and before finding this solution install the private controller of ati for R8330 and end up damaging my installation of debia jessie my gnome desktop and installing the distro again

regards