Bug 99718 - RX480 - MCLK stuck at 300
Summary: RX480 - MCLK stuck at 300
Status: RESOLVED WONTFIX
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/AMDgpu (show other bugs)
Version: DRI git
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Default DRI bug account
QA Contact:
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Depends on:
Blocks:
 
Reported: 2017-02-09 06:14 UTC by Mathieu Belanger
Modified: 2017-03-09 04:02 UTC (History)
0 users

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Attachments
DMESG (143.81 KB, text/plain)
2017-02-09 06:14 UTC, Mathieu Belanger 		no flags Details
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Description Mathieu Belanger 2017-02-09 06:14:02 UTC 
Created attachment 129417 [details]
DMESG

I,

I just found out that the MCLK was stuck at 300Mhz on my Polaris10 card. I got the card last week, I don't really know if it's new. I have git version of linux, mesa, libdrm.

I can force the power to high and get the proper 2000Mhz and when I set it back to auto, it go back down to 300Mhz, halving my EVE-Online fps by about 200%.

The SCLK is normal, It move according to load on auto and move according to crappy cooling on high.

I got some error in the dmesg too, can be related, or no.., I attach them.
Comment 1 Alex Deucher 2017-02-09 13:44:02 UTC 
Does the firmware here help?
https://people.freedesktop.org/~agd5f/radeon_ucode/polaris/
Comment 2 Mathieu Belanger 2017-02-09 16:20:23 UTC 
Yes, Seam to be fine with these. Errors are still in dmesg but MCLK go up to 2000 by hitself.

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