Bug 105639 - System hangs up when loading amdgpu module
Summary: System hangs up when loading amdgpu module
Status: RESOLVED NOTABUG
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
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Reported: 2018-03-21 04:52 UTC by jian-hong
Modified: 2018-03-22 06:30 UTC (History)
0 users

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Attachments
dmesg of loading amdgpu module (11.93 KB, text/plain)
2018-03-21 04:52 UTC, jian-hong
no flags Details

Description jian-hong 2018-03-21 04:52:31 UTC
Created attachment 138233 [details]
dmesg of loading amdgpu module

I have an AMD Ryzen 5 2400G with Radeon Vega Graphics computer.  When I use the Linux kernel v4.16-rc6 on it, system hangs up during the booting time.

Therefore, I try to load the amdgpu module manually and found whenever I load amdgpu module, system hangs up.  However, I can ssh into the system, after system hangs up.

The attachment is the dmesg with the mudule parameters amdgpu.dc_log=1 drm.debug=7.

09:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Vega [Radeon Vega 8 Mobile] [1002:15dd] (rev c6) (prog-if 00 [VGA controller])
	Subsystem: Acer Incorporated [ALI] Vega [Radeon Vega 8 Mobile] [1025:1257]
	Flags: bus master, fast devsel, latency 0, IRQ 67
	Memory at e0000000 (64-bit, prefetchable) [size=256M]
	Memory at f0000000 (64-bit, prefetchable) [size=2M]
	I/O ports at e000 [size=256]
	Memory at fe700000 (32-bit, non-prefetchable) [size=512K]
	Capabilities: <access denied>
	Kernel driver in use: amdgpu
Comment 1 Alex Deucher 2018-03-21 04:55:43 UTC
You built the driver without display support.  Please make sure your .config has the following set:
CONFIG_DRM_AMD_DC=y
CONFIG_DRM_AMD_DC_DCN1_0=y
Comment 2 jian-hong 2018-03-22 06:30:24 UTC
Thanks Alex,
It works for next step!


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