Bug#1121470: latest freeze log files

[Fabio Fantoni]

the fact that the GPU is very recent might not be well supported, I haven't seen any specific errors from a quick look in the logs but from searching in various they report freezing problems with the same or similar video cards, maybe you could try adding amdgpu.dcdebugmask=0x10 to disable PSR that seems one of the cause on some cases, if you don't know how to do:

sudo nano /etc/default/grub
# modify the line `GRUB_CMDLINE_LINUX_DEFAULT` like this:
GRUB_CMDLINE_LINUX_DEFAULT="quiet amdgpu.dcdebugmask=0x10"
sudo update-grub

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