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

[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.

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

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