Comment # 59 on bug 1028575 from Mircea Kitsune

Further more, I suspect I now know what the culprit component is. It's very
likely that the problem lies within Mesa itself, and was introduced in the
switch between 13.0 and 17.0.

This was confirmed by the bug report I linked previously, which I strongly
believe is related to the issue I'm experiencing here: Another person there was
able to verify that their crash happens with Mesa 17 but not 13. Looking at the
dates, I realize that I started experiencing this problem precisely when
openSUSE Tumbleweed upgraded from Mesa 13.0 to 17.0: Mesa 17 landed in early
March 2017, it was a few days later that the issues began, which I then
reported the following week (08 March 2017). See my comment in the other bug
for more info on this:

https://bugs.freedesktop.org/show_bug.cgi?id=101325#c22

I also seem to confirm that the issue only affects RadeonSI cards but not R600:
My laptop has a Mobility Radeon HD 5470 card (R600) whereas my desktop has a
Radeon R7 370 card (RadeonSI). I've been away for two weeks and have been using
my laptop exclusively during this time, which has the exact same OS and
configuration as my desktop. I was able to preform every task I do on my
desktop from my laptop, including the triggers I described above... I have
never experienced this freeze with the laptop.