I always had issues with my Radeon HD 2600 and switching to text mode, like in Ivaylo's case. Not just in Trisquel, but also in other GNU/Linux systems. The same black screen issue also happens when I logout.
I don't have any video problems with Totem though. I noticed in Trisquel 5.0, unlike before, sometimes windows and panels leave garbage, but not too often. Would someone explain what KMS is and does, how one can check if its running, and how one can turn it on and off? I don't have a "/etc/modprobe.d/radeon.conf" file. Is "modest=0" a typo, and shouldn't it be "modeset=0" or "modset=0"?
