1) I used to have radeon.dpm=1 to save power (although, I don't have
numbers how much better it is with respect to no parameter).
2) I can't.
My Ubuntu 17.10 (and according to my knowledge it's a trend in the community)
runs with Wayland, not Xorg so there is not Xorg server with its log file.
Thus, as suggested on the webpage
(https://fedoraproject.org/wiki/How_to_debug_Wayland_problems), I use
journalctl to combine all relevant log information. Thus, you do have entire
logs, only with different file names.
** Changed in: xserver-xorg-video-ati (Ubuntu)
Status: Incomplete => Confirmed
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1002:6821 Graphical issues when radeon MST enabled
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