Commen=
t # 11
on bug 99316<=
/a>
from Samuel Anderson
(In reply to Mathias from comment #10)
> I have also a Dell notebook with the same dGPU, =
but cannot reproduce your
> error with Ubuntu 16.04 kernel 4.10.0.
>=20
> 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.=20
>=20
> When I run glmark2, I look at "/sys/kernel/debug/dri/0/radeon_pm_=
info" and
> always see the following output:
>=20
> 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
>=20
> Btw.: This dGPU cannot be connected to a CRT directly, as there seems =
to be
> no connection available at all.
Is the GPU at low power while plugged in, or always?
glmark2 while plugged in instantly crashes for me, but on battery I get a s=
core
of 1395 which is horrible compared to the 3680 from my integrated card. Plus
horrible rendering artifacts. But I'm not sure if that is really related to=
my
main problem.
This is "/sys/kernel/debug/dri/0/radeon_pm_info" on battery with =
glmark2 for
me:
uvd vclk: 0 dclk: 0
power level 2 sclk: 40000 mclk: 30000 vddc: 900 vddci: 0 pcie gen: 3
Oddly enough, a completely different format than yours.
This card seems to have a multitude of problems