On Fri, Oct 1, 2021 at 11:05 AM Ilia Mirkin <imirkin@alum.mit.edu> wrote:

> You can check the perf level your GPU is at, and potentially adjust it.
>
> cat /sys/kernel/debug/dri/0/pstate
>
> This should give a list of levels like "xx: stuff", with the "AC"
> level being the current settings. Echo'ing any one of the xx's into
> that file will attempt to switch to a different performance level.
> Sometimes it works, other times it kills the GPU until you reboot. Use
> with care.
>
> Cheers,
>
>   -ilia
>
> On Fri, Oct 1, 2021 at 11:01 AM Jerry Geis <jerry.geis@gmail.com> wrote:
> >
> > I am trying to get Nouveau running and also playing video.
> > lspci | grep VGA shows
> > 03:00.0 VGA compatible controller: NVIDIA Corporation GT218 [ION] (rev
> a2)
> >
> > syslog shows nouveau loaded
> >
> > But video performance is SLOW - dropping frames.
> >
> > have I missed something ?
> >
> > How do I get better video performance ?
> >
> > Thanks,
> >
> > Jerry
>


Thanks perhaps this is part of the problem:
 ls -l /sys/kernel/debug/dri/
total 0

Do I not have a package installed ?
apt list --installed | grep dri

WARNING: apt does not have a stable CLI interface. Use with caution in
scripts.

i965-va-driver/focal,now 2.4.0-0ubuntu1 amd64 [installed,automatic]
intel-media-va-driver/focal,now 20.1.1+dfsg1-1 amd64 [installed,automatic]
libgl1-mesa-dri/now 21.0.3-0ubuntu0.3~20.04.1 amd64 [installed,upgradable
to: 21.0.3-0ubuntu0.3~20.04.2]
libreoffice-base-drivers/focal-updates,now 1:6.4.7-0ubuntu0.20.04.1 amd64
[installed,automatic]
libxcb-dri2-0/focal,now 1.14-2 amd64 [installed,automatic]
libxcb-dri3-0/focal,now 1.14-2 amd64 [installed,automatic]
mesa-va-drivers/now 21.0.3-0ubuntu0.3~20.04.1 amd64 [installed,upgradable
to: 21.0.3-0ubuntu0.3~20.04.2]
mesa-vdpau-drivers/now 21.0.3-0ubuntu0.3~20.04.1 amd64
[installed,upgradable to: 21.0.3-0ubuntu0.3~20.04.2]
mesa-vulkan-drivers/now 21.0.3-0ubuntu0.3~20.04.1 amd64
[installed,upgradable to: 21.0.3-0ubuntu0.3~20.04.2]
printer-driver-pnm2ppa/focal,now 1.13+nondbs-0ubuntu6 amd64
[installed,automatic]
ubuntu-drivers-common/focal-updates,now 1:0.9.0~0.20.04.1 amd64
[installed,automatic]
va-driver-all/focal,now 2.7.0-2 amd64 [installed,automatic]
vdpau-driver-all/focal,now 1.3-1ubuntu2 amd64 [installed,automatic]
vdpau-va-driver/now 0.7.4-7 amd64 [installed,local]

Jerry