[Bug 201763] amdgpu: [powerplay] VBIOS did not find boot engine clock value in dependency table. Using Memory DPM level 0!

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https://bugzilla.kernel.org/show_bug.cgi?id=201763

--- Comment #8 from Rogério Brito (rbrito at ime.usp.br) ---
Dear Michel,

(In reply to Michel Dänzer from comment #7)
> (In reply to Rogério Brito from comment #5)
> > First of all, sorry for the late reply. I had really a really bad start of
> > the year (death in family, complications caused by that, health problems,
> > fire at home and also recovering from that hard hit etc.)
> 
> Nothing to apologize for, I hope things are (getting) better for you now!

Things are slowly getting better now (still working on fixing things related to
the fire at home).

> > (In reply to Michel Dänzer from comment #2)
> > > From the dmesg output, it looks like the AMD GPU is powered off most of
> the
> > > time. Do the freezes happen when you explicitly use it for something,
> e.g.
> > > for a game via DRI_PRIME=1?
> > 
> > I never play games (really, the only game that I played in the last few
> > years was 2048 on a browser), but I guess that other applications may use
> > the discrete AMD GPU that this notebook has.
> 
> The AMD GPU should only be used if you explicitly choose to, by setting
> DRI_PRIME=1 or maybe using a corresponding setting of your desktop
> environment. Maybe the AMD GPU is only getting powered up accidentally, and
> the freezes happen due to something going wrong while powering it up/down.

Nice to know that. I may have mentioned before, but I put DRI_PRIME=1 on my
bash_profile file. I notice that when I open/close Firefox, then I get one
instance of:

------------
[drm] PCIE GART of 256M enabled (table at 0x000000F400000000).
amdgpu: [powerplay] can't get the mac of 5
amdgpu: [powerplay] VBIOS did not find boot engine clock value in dependency
table. Using Memory DPM level 0!
------------

> Please attach the corresponding Xorg log file, preferably captured after
> dmesg has at least two instances of
> 
>  [drm] PCIE GART of 256M enabled (table at 0x000000F400000000).

OK, I am attaching both a dmesg log and the corresponding Xorg log of this
moment that I am writing (just performed a cold boot, to rule things out), but
the Xorg log doesn't contain anything after the first 50 seconds or so...

I can turn on some debug options, if you want me to.

> You could also try modprobe.blacklist=amdgpu on the kernel command line, to
> see if the freezes happen even if the amdgpu driver never initializes the
> AMD GPU.

OK, I will do that after I finish this message.


Thanks,

Rogério Brito.

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