Bug 109238 - [DC] Polaris10: Missing modes when enabling DC
Summary: [DC] Polaris10: Missing modes when enabling DC
Status: NEW
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/AMDgpu (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Default DRI bug account
QA Contact:
URL:
Whiteboard:
Keywords:
Depends on: 103953
Blocks:
  Show dependency treegraph
 
Reported: 2019-01-07 06:44 UTC by Raman Gupta
Modified: 2019-08-04 15:42 UTC (History)
8 users (show)

See Also:
i915 platform:
i915 features:


Attachments
Xorg.0.log with modesetting (49.04 KB, text/plain)
2019-01-07 06:44 UTC, Raman Gupta
no flags Details
Xorg.0.log without modesetting (65.01 KB, text/plain)
2019-01-07 06:45 UTC, Raman Gupta
no flags Details
dmesg with modesetting (113.69 KB, text/plain)
2019-01-07 06:45 UTC, Raman Gupta
no flags Details
dmesg without modesetting (113.92 KB, text/plain)
2019-01-07 06:46 UTC, Raman Gupta
no flags Details

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Description Raman Gupta 2019-01-07 06:44:55 UTC
Created attachment 142991 [details]
Xorg.0.log with modesetting

+++ This bug was initially created as a clone of Bug #103953 +++

I have 3 Dell WQHD Screens (2560x1440) screens, connected to a Radeon RX580 (XFX, RX-580 GTS Black Edition, 1425 MHz 8GB).

My kernel is:

Linux edison 4.19.13-300.fc29.x86_64 #1 SMP Sat Dec 29 22:54:28 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

With the default boot settings, which enable amdgpu.dc, I am unable to get the native resolution on one of the three monitors.

If I disable amdgpu.dc on the kernel command line, I am able to get the native resolution on all three monitors.

I have attached the Xorg.0.conf.old from the startup with amdgpu.dc at the default setting, and Xorg.0.conf from the startup with amdgpu.dc=0.

I have also attached the initial part of the dmesg log from both boots:

dmesg-amdgpudcdefault.log : default amdgpu.dc setting (enabled)
dmesg-amdgpudc0.log : amdgpu.dc=0

The only relevant difference I see between the two is that with modesetting, I see the following errors:

 edison kernel: amdgpu: [powerplay] Failed to retrieve minimum clocks.
 edison kernel: amdgpu: [powerplay] Error in phm_get_clock_info 

whereas without modesetting I do not see those errors.
Comment 1 Raman Gupta 2019-01-07 06:45:29 UTC
Created attachment 142992 [details]
Xorg.0.log without modesetting
Comment 2 Raman Gupta 2019-01-07 06:45:53 UTC
Created attachment 142993 [details]
dmesg with modesetting
Comment 3 Raman Gupta 2019-01-07 06:46:11 UTC
Created attachment 142994 [details]
dmesg without modesetting
Comment 4 Raman Gupta 2019-07-12 21:17:07 UTC
Still have this issue, with a totally different card: RX590 made by Asus.


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