Comment # 1
on bug 107154
from dwagner
Indeed, crashes upon S3 resumes have been abundant with amdgpu.dc=1 for many months now, and seemingly for more than one reason. One bug I reported in August 2017 with https://bugs.freedesktop.org/show_bug.cgi?id=102323 - that one was fixed quickly. The next S3 resume crash I reported in October 2017 in https://bugs.freedesktop.org/show_bug.cgi?id=103277, that one stayed without any resolution until April 2018, and the fix found in that report only works if no "drm.edid_firmware=..." kernel command line option is used. Another crash bug with S3 resumes I reported for 4.17.2 kernels in https://bugs.freedesktop.org/show_bug.cgi?id=107065 - then realized that 4.18 pre-releases exhibit the very same kind of crash immediately upon starting X11. For this crash upon X11 startup, there is a patch in the bug report, but it does not prevent the S3 resume crash. I currently work around S3 resume crashes by switching to the console display before enterin S3 sleep - but this is really an awkward work-around.
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