[Bug 204609] amdgpu: powerplay failed send message

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=204609

Guido Winkelmann (guido-kern-bugs at unknownsite.de) changed:

           What    |Removed                     |Added
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                 CC|                            |guido-kern-bugs at unknownsite
                   |                            |.de

--- Comment #2 from Guido Winkelmann (guido-kern-bugs at unknownsite.de) ---
I have very similar problems with Kernel 5.4-rc7. In my case it's a Sapphire
5700XT, and I am using Gentoo instead of Ubuntu, however, the problems start
way before any userspace code is loaded.

In my case, the problems cause long delays on system boot, once before loading
init, once while X is loading. As a very rough estimate, I think the delays
amount to about 2 minutes. Once X is loaded, I can no longer see any delays.

All sensors on the board are completely non-functional. Here is a sample output
from "sensors":

======
amdgpu-pci-0a00
Adapter: PCI adapter
vddgfx:       +0.75 V  
ERROR: Can't get value of subfeature fan1_input: I/O error
fan1:             N/A  (min =    0 RPM, max = 3200 RPM)
ERROR: Can't get value of subfeature temp1_input: I/O error
edge:             N/A  (crit = +118.0°C, hyst = -273.1°C)
                       (emerg = +99.0°C)
ERROR: Can't get value of subfeature temp2_input: I/O error
junction:         N/A  (crit = +99.0°C, hyst = -273.1°C)
                       (emerg = +99.0°C)
ERROR: Can't get value of subfeature temp3_input: I/O error
mem:              N/A  (crit = +99.0°C, hyst = -273.1°C)
                       (emerg = +99.0°C)
ERROR: Can't get value of subfeature power1_average: I/O error
power1:           N/A  (cap = 195.00 W)

k10temp-pci-00c3
Adapter: PCI adapter
Tdie:         +31.5°C  (high = +70.0°C)
Tctl:         +41.5°C
======

I did not experience any of these problems with 5.3.10.

I have three monitors connected to this board, all of them via DisplayPort.

I am attaching another dmesg log.

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