https://bugs.freedesktop.org/show_bug.cgi?id=99316
--- Comment #10 from mat...@yahoo.de ---
I have also a Dell notebook with the same dGPU, but cannot reproduce your error
with Ubuntu 16.04 kernel 4.10.0.
Instead I have the problem, that the dGPU only gets powered at a low frequency,
and becomes slower than the Intel GPU by doing so.
When I run glmark2, I look at "/sys/kernel/debug/dri/0/radeon_pm_info" and
always see the following output:
default engine clock: 925000 kHz
current engine clock: 299990 kHz
default memory clock: 1000000 kHz
current memory clock: 148990 kHz
voltage: 1225 mV
PCIE lanes: 16
Btw.: This dGPU cannot be connected to a CRT directly, as there seems to be no
connection available at all.
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