AMDGPU bug

AMDGPU bug

[Subsentient]

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Hi, I've been experiencing a bug on kernels 5.2 and up that apparently
is uncommon and/or unimportant enough to have both threads mentioning it
die. 

On a Ryzen 3 2200G, the amdgpu driver fails upon lightdm login: 

https://bugzilla.redhat.com/show_bug.cgi?id=1752188 

I thought I'd bring this to your attention as the others reporting this
bug have so far been met with silence, and this has trapped me and
others on the unsupported kernel 5.1.21. 

Thanks for your time.

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AMDGPU bug

[Subsentient]

[-- Attachment #1.1: Type: text/plain, Size: 474 bytes --]

Hi, I've been experiencing a bug on kernels 5.2 and up that apparently
is uncommon and/or unimportant enough to have both threads mentioning it
die. 

On a Ryzen 3 2200G, the amdgpu driver fails upon lightdm login: 

https://bugzilla.redhat.com/show_bug.cgi?id=1752188 

I thought I'd bring this to your attention as the others reporting this
bug have so far been met with silence, and this has trapped me and
others on the unsupported kernel 5.1.21. 

Thanks for your time.

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[-- Attachment #2: Type: text/plain, Size: 153 bytes --]

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Re: AMDGPU bug

[Kazlauskas, Nicholas]

On 2019-11-10 7:00 p.m., Subsentient wrote:
> Hi, I've been experiencing a bug on kernels 5.2 and up that apparently 
> is uncommon and/or unimportant enough to have both threads mentioning it 
> die.
> 
> On a Ryzen 3 2200G, the amdgpu driver fails upon lightdm login:
> 
> https://bugzilla.redhat.com/show_bug.cgi?id=1752188
> 
> I thought I'd bring this to your attention as the others reporting this 
> bug have so far been met with silence, and this has trapped me and 
> others on the unsupported kernel 5.1.21.
> 
> Thanks for your time.
> 
> 
> 
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
> 

I'm not sure that the backtrace listed is particularly relevant for 
describing what issue is actually occurring, but if I had to take a 
guess based on the ASIC and kernel version I would imagine that it's 
Raven's displayable DCC support that's causing you issues.

I believe you'd need to be running mesa, xf86-video-amdgpu and running 
without a compositor in your desktop manager. Does this describe your setup?

If you can bisect that would help narrow things down further. The bisect 
commit would likely be one that's just changing the amdgpu version 
number if it's DCC (since mesa checks that before deciding to enable 
displayable DCC).

Nicholas Kazlauskas
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Re: AMDGPU bug

[Kazlauskas, Nicholas]

On 2019-11-10 7:00 p.m., Subsentient wrote:
> Hi, I've been experiencing a bug on kernels 5.2 and up that apparently 
> is uncommon and/or unimportant enough to have both threads mentioning it 
> die.
> 
> On a Ryzen 3 2200G, the amdgpu driver fails upon lightdm login:
> 
> https://bugzilla.redhat.com/show_bug.cgi?id=1752188
> 
> I thought I'd bring this to your attention as the others reporting this 
> bug have so far been met with silence, and this has trapped me and 
> others on the unsupported kernel 5.1.21.
> 
> Thanks for your time.
> 
> 
> 
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
> 

I'm not sure that the backtrace listed is particularly relevant for 
describing what issue is actually occurring, but if I had to take a 
guess based on the ASIC and kernel version I would imagine that it's 
Raven's displayable DCC support that's causing you issues.

I believe you'd need to be running mesa, xf86-video-amdgpu and running 
without a compositor in your desktop manager. Does this describe your setup?

If you can bisect that would help narrow things down further. The bisect 
commit would likely be one that's just changing the amdgpu version 
number if it's DCC (since mesa checks that before deciding to enable 
displayable DCC).

Nicholas Kazlauskas
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amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

Re: AMDGPU bug

[Subsentient]

On 2019-11-11 07:35, Kazlauskas, Nicholas wrote:
> On 2019-11-10 7:00 p.m., Subsentient wrote:
>> Hi, I've been experiencing a bug on kernels 5.2 and up that 
>> apparently is uncommon and/or unimportant enough to have both threads 
>> mentioning it die.
>>
>> On a Ryzen 3 2200G, the amdgpu driver fails upon lightdm login:
>>
>> https://bugzilla.redhat.com/show_bug.cgi?id=1752188
>>
>> I thought I'd bring this to your attention as the others reporting 
>> this bug have so far been met with silence, and this has trapped me 
>> and others on the unsupported kernel 5.1.21.
>>
>> Thanks for your time.
>>
>>
>>
>> _______________________________________________
>> amd-gfx mailing list
>> amd-gfx@lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
>>
>
> I'm not sure that the backtrace listed is particularly relevant for 
> describing what issue is actually occurring, but if I had to take a 
> guess based on the ASIC and kernel version I would imagine that it's 
> Raven's displayable DCC support that's causing you issues.
>
> I believe you'd need to be running mesa, xf86-video-amdgpu and running 
> without a compositor in your desktop manager. Does this describe your 
> setup?
>
> If you can bisect that would help narrow things down further. The 
> bisect commit would likely be one that's just changing the amdgpu 
> version number if it's DCC (since mesa checks that before deciding to 
> enable displayable DCC).
>
> Nicholas Kazlauskas

Afternoon. My apologies for the extended delay, I have an extremely busy 
schedule and it takes a rare combination of time and energy for me to be 
able to deal with such matters.

I'm afraid it doesn't appear to be DCC, as I have been using 
"RADV_DEBUG=nodcc", and I am not using Xorg's amdgpu driver. The 
xorg-x11-drv-amdgpu package isn't installed.

I am running with Compiz for a compositor on XFCE4, but the hang occurs 
well before my time-delayed script can execute Compiz. My 2200G remains 
broken in kernel 5.4.1. I am still stranded on 5.1.21.

I appreciate any insight or suggestions.

Thanks.

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