From: Qu Wenruo <quwenruo.btrfs@gmx.com>
To: "Michel Dänzer" <michel@daenzer.net>
Cc: amd-gfx@lists.freedesktop.org
Subject: Re: Renoir kernel warnings and crashes with external monitors (DP mst)
Date: Tue, 23 Jun 2020 16:33:06 +0800 [thread overview]
Message-ID: <ab81c5d7-7a81-9a2a-9221-aa6dc8f53b3c@gmx.com> (raw)
In-Reply-To: <c3bf60a1-852d-de42-b8bc-e439677dd61f@daenzer.net>
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On 2020/6/23 下午4:22, Michel Dänzer wrote:
> On 2020-06-23 2:23 a.m., Qu Wenruo wrote:
>> Hi guys,
>
>> Firstly thanks for the awesome renoir CPUs.
>
>> However it looks like there are still some bugs in the Linux
>> support, especially with external monitors.
>
>> My setup: - Laptop: Lenovo IdeaPad S540 13ARE (Or, Xiaoxin Pro 13
>> in Chinese market) 4800U CPU, with 5.7.4 Arch kernel. (Also tried
>> 5.8-rc kernels, even more crashes) The eDP display is 2560x1600
>> natively, but to cooperate with external monitors, it's set to
>> 1920x1200. And under my daily usage, the lid is closed, thus the
>> eDP display shouldn't be involved.
>
>> - Two external monitors connected using USB-c dock The dock is HP
>> usb-c dock G4, which uses DP alt mode MST for external displays. So
>> not DisplayLink garbage, and all monitors are handled by Vega
>> internal GPU.
>
>> Both external displays are 1080P 60hz, so definitely inside the
>> spec for DP 1.2.
>
>> - X11 environment xf86-video-amdgpu, along with mesa stack.
>
>> With such setup, the kernel boots with warning already related to
>> DP MST: https://paste.opensuse.org/54293967
>
> See https://gitlab.freedesktop.org/drm/amd/-/issues/1108 .
>
>
>
OK, that explains the warning.
Although for the crash I still need to setup netconsole to capture the
dying message though.
Thanks,
Qu
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prev parent reply other threads:[~2020-06-23 13:26 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-23 0:23 Renoir kernel warnings and crashes with external monitors (DP mst) Qu Wenruo
2020-06-23 8:22 ` Michel Dänzer
2020-06-23 8:33 ` Qu Wenruo [this message]
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