[Bug 102130] pp_dpm_mclk always on level 1 (cant set to level 0) rx 480

[Bug 102130] pp_dpm_mclk always on level 1 (cant set to level 0) rx 480

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https://bugs.freedesktop.org/show_bug.cgi?id=102130

            Bug ID: 102130
           Summary: pp_dpm_mclk always on level 1 (cant set to level 0) rx
                    480
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: gsedej@gmail.com

I can't set memory state to 0 (300 MHz), it always stays at state 1 (2000 MHz).
If I set 

echo "manual" > power_dpm_force_performance_level
echo 0 > pp_dpm_mclk

the memory clock stays at level 1, and I get kernel message:

[  239.231304] amdgpu: [powerplay] 
                failed to send message 146 ret is 255 
[  239.995386] amdgpu: [powerplay] 
                failed to send pre message 201 ret is 255 


The hardware is "SAPPHIRE NITRO+ Radeon RX 480 OC" and it might be BIOS
related, since some rx 480 users does not have such problem.

Using Ubuntu 16.04.2 kernel 4.13-rc4.

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[Bug 102130] pp_dpm_mclk always on level 1 (cant set to level 0) rx 480

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https://bugs.freedesktop.org/show_bug.cgi?id=102130

--- Comment #1 from Alex Deucher <alexdeucher@gmail.com> ---
Please attach your xorg log and dmesg output.  Are you using multiple monitors?

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[Bug 102130] pp_dpm_mclk always on level 1 (cant set to level 0) rx 480

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https://bugs.freedesktop.org/show_bug.cgi?id=102130

--- Comment #2 from Gašper Sedej <gsedej@gmail.com> ---
Created attachment 133420
  --> https://bugs.freedesktop.org/attachment.cgi?id=133420&action=edit
dmesg

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[Bug 102130] pp_dpm_mclk always on level 1 (cant set to level 0) rx 480

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https://bugs.freedesktop.org/show_bug.cgi?id=102130

--- Comment #3 from Gašper Sedej <gsedej@gmail.com> ---
Created attachment 133421
  --> https://bugs.freedesktop.org/attachment.cgi?id=133421&action=edit
Xorg.0.log

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[Bug 102130] pp_dpm_mclk always on level 1 (cant set to level 0) rx 480

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https://bugs.freedesktop.org/show_bug.cgi?id=102130

--- Comment #4 from Gašper Sedej <gsedej@gmail.com> ---
Phisically unplugging monitor (and rebooting) did help. If i just disable
monitor in manager, the memory frequency does not go below 2000 MHz. So if i
wish to save power and temperature I would need to physically unplug the
monitor.

So this is not a bug?
(sorry for posting 3 replys, didn't know about attachments)

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[Bug 102130] pp_dpm_mclk always on level 1 (cant set to level 0) rx 480

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https://bugs.freedesktop.org/show_bug.cgi?id=102130

--- Comment #5 from Alex Deucher <alexdeucher@gmail.com> ---
Is this still an issue?

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[Bug 102130] pp_dpm_mclk always on level 1 (cant set to level 0) rx 480

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https://bugs.freedesktop.org/show_bug.cgi?id=102130

Gašper Sedej <gsedej@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |WONTFIX

--- Comment #6 from Gašper Sedej <gsedej@gmail.com> ---
For what I understand it's firmware issue and depends on total monitor count. 

If there is only one monitor I can set gpu memory to either level (0 or 1).
If you have more than one monitor plugged, than it's fixed to level 1 (2000
MHz).

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