https://bugzilla.kernel.org/show_bug.cgi?id=195465

--- Comment #2 from Hugo Andrade (hugo.slip@gmail.com) --- Created attachment 255929 --> https://bugzilla.kernel.org/attachment.cgi?id=255929&action=edit lshw

https://bugzilla.kernel.org/show_bug.cgi?id=195465

matrikslee (im.lechain@gmail.com) changed:

What |Removed |Added ---------------------------------------------------------------------------- CC| |im.lechain@gmail.com

--- Comment #4 from matrikslee (im.lechain@gmail.com) --- (In reply to Michel Dänzer from comment #3)

What exactly is the problem? The only suspicious thing in dmesg is the below, which indicates that the GPU's power management might not be working perfectly:

[ 20.346154] cant't get the mac of 5 [ 20.348337] [ powerplay ] VBIOS did not find boot engine clock value in dependency table. Using Memory DPM level 0!

hello, there is the same problem in my dell Inspirion 5547.

my output of `dmesg --levle=err,warn ` like this:

[ 5175.824105] amdgpu: [powerplay] VI should always have 2 performance levels [ 5181.060603] amdgpu: [powerplay] can't get the mac of 5 [ 5181.061744] amdgpu: [powerplay] VBIOS did not find boot engine clock value > in dependency table. Using Memory DPM level 0! [ 5186.704831] amdgpu: [powerplay] VI should always have 2 performance levels [ 5191.861423] amdgpu: [powerplay] can't get the mac of 5 [ 5191.862585] amdgpu: [powerplay] VBIOS did not find boot engine clock value in dependency table. Using Memory DPM level 0! [ 5196.872216] amdgpu: [powerplay] VI should always have 2 performance levels

and my previous kernel version is 4.10-11-1-ARCH, now, I changed my kernel to 4.11.0-rc8-g5a7ad1146caa. however, the bug isn't solved.

And I also checked the kernel code of drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c, this file's bug has been fixed since the bug#185681.

however, my kernel also has the error of powerplay. so annoying.

can you have any suggestion for me to solve this problem?

Thanks grateful!