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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Radeon crash when laptop on AC power"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99316#c10">Comment # 10</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Radeon crash when laptop on AC power"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99316">bug 99316</a>
from <span class="vcard"><a class="email" href="mailto:mat42x@yahoo.de" title="mat42x@yahoo.de">mat42x@yahoo.de</a>
</span></b>
<pre>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.</pre>
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