mgag200 broken on kernel-6.0-rc3 on DELL/T620

[Thomas Zimmermann]

Hi

Am 07.09.22 um 10:47 schrieb Wang Yugui:
> Hi,
> 
>> Am 07.09.22 um 09:38 schrieb Wang Yugui:
>>> Hi,
>>>
>>>
>>>> Hi
>>>>
>>>> Am 07.09.22 um 06:16 schrieb Wang Yugui:
>>>>> Hi,
>>>>>
>>>>>> Am 02.09.22 um 07:52 schrieb Wang Yugui:
>>>>>>> Hi,
>>>>>>>
>>>>>>> mgag200 broken on kernel-6.0-rc3 on DELL/T620.
>>>>>>>
>>>>>>> See the attachementment file for the graph output.
>>>>>>
>>>>>> Thanks for reporting the bug. We recently refactored some code of the driver. Can you bisect to the change that introduced the problem?
>>>>>
>>>>> 5.19.3 works well on this DELL/T620.
>>>>>
>>>>> so this problem should be a regression of 6.0.
>>>>>
>>>>> other bisect seem difficult for me.
>>>>
>>>> OK, thank you. Can you provide the dmesg log of the broken machine and the output of 'sudo lspci -vn' please?
>>>
>>> please see the attachment file for the output of 'lspci -vn'.
>>
>>    0a:00.0 0300: 102b:0534 (prog-if 00 [VGA controller])
>>
>> It's the G200ER. I'll try to find related code that we recently changed. I might get back to you for testing a patch. Thanks so far.
> 
> the patch based on kernel 6.0(rc4) will be easy to build and test here.
> 
> By the way, this problem happen on DELL/T630 too.
> but it does not happen on DELL/T640.
> 
> please see the attachment file for the output of 'lspci -vn' on
> DELL/T630 and DELL/T640.

Thanks a lot, again. According to these files, the T630 also has a 
G200ER, but the T640 has a G200EW3. As I said, we recently refactored 
the driver. The G200ER is somehow different now. I'll get back to you as 
soon as I find something.

Best regards
Thomas

> 
> Best Regards
> Wang Yugui (wangyugui at e16-tech.com)
> 2022/09/07
> 

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Ivo Totev
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