Created attachment 123823 [details] tail of kern.log Sorry, the crash dump was 0 bytes there when i went to find it.
oops... almost forgot this is on Ubuntu 16.04
Can you attach /sys/class/drm/card0/error log and full dmesg?
no update from reporter for a period and since there is not enough information to proceed, I am closing for this bug. Please feel free to reopen once you reproduce the issue and have more information.
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