From: Thomas Zimmermann <tzimmermann@suse.de>
To: Wang Yugui <wangyugui@e16-tech.com>
Cc: dri-devel <dri-devel@lists.freedesktop.org>
Subject: Re: mgag200 broken on kernel-6.0-rc3 on DELL/T620
Date: Wed, 7 Sep 2022 08:47:16 +0200 [thread overview]
Message-ID: <6ae94a84-4757-71cd-f1a9-751b8cf307b0@suse.de> (raw)
In-Reply-To: <20220907121612.FBFC.409509F4@e16-tech.com>
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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?
Best regards
Thomas
>
> Best Regards
> Wang Yugui (wangyugui@e16-tech.com)
> 2022/09/07
>
>
>>
>> Best regards
>> Thomas
>>
>>>
>>> [root@T620 ~]# dmesg |grep -i 'vga\|mga'
>>> [ 0.588940] Console: colour VGA+ 80x25
>>> [ 4.918214] pci 0000:0a:00.0: vgaarb: setting as boot VGA device
>>> [ 4.919028] pci 0000:0a:00.0: vgaarb: bridge control possible
>>> [ 4.919028] pci 0000:0a:00.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none
>>> [ 4.941058] vgaarb: loaded
>>> [ 9.385485] mgag200 0000:0a:00.0: vgaarb: deactivate vga console
>>> [ 9.510688] [drm] Initialized mgag200 1.0.0 20110418 for 0000:0a:00.0 on minor 0
>>> [ 9.523145] fbcon: mgag200drmfb (fb0) is primary device
>>> [ 9.641543] mgag200 0000:0a:00.0: [drm] fb0: mgag200drmfb frame buffer device
>>>
>>>
>>> more info:
>>> 1, This DELL/T620 works well with kernel 5.15.63,
>>> so this is not a hardware error.
>>>
>>> 2, DELL/T640 works well with kernel 6.0-rc and 5.15.63.
>>> both DELL/T620 and DELL/T640 use the driver 'mgag200'.
>>>
>>> [root@T640 ~]# dmesg |grep -i 'vga\|mga'
>>> [ 10.161500] pci 0000:03:00.0: vgaarb: setting as boot VGA device
>>> [ 10.162463] pci 0000:03:00.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none
>>> [ 10.176527] pci 0000:03:00.0: vgaarb: bridge control possible
>>> [ 10.182465] vgaarb: loaded
>>> [ 11.832839] fb0: EFI VGA frame buffer device
>>> [ 21.303826] mgag200 0000:03:00.0: vgaarb: deactivate vga console
>>> [ 21.319498] [drm] Initialized mgag200 1.0.0 20110418 for 0000:03:00.0 on minor 0
>>> [ 21.330223] fbcon: mgag200drmfb (fb0) is primary device
>>> [ 21.332140] mgag200 0000:03:00.0: [drm] drm_plane_enable_fb_damage_clips() not called
>>> [ 21.741629] mgag200 0000:03:00.0: [drm] fb0: mgag200drmfb frame buffer device
>>>
>>> Best Regards
>>> Wang Yugui (wangyugui@e16-tech.com)
>>> 2022/09/02
>>>
>> -- Thomas Zimmermann
>> Graphics Driver Developer
>> SUSE Software Solutions Germany GmbH
>> Maxfeldstr. 5, 90409 Nürnberg, Germany
>> (HRB 36809, AG Nürnberg)
>> Gesch?ftsführer: Ivo Totev
>
>
--
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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next prev parent reply other threads:[~2022-09-07 6:47 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20220902135242.2447.409509F4@e16-tech.com>
2022-09-05 6:57 ` mgag200 broken on kernel-6.0-rc3 on DELL/T620 Thomas Zimmermann
2022-09-07 4:16 ` Wang Yugui
2022-09-07 6:47 ` Thomas Zimmermann [this message]
2022-09-07 7:38 ` Wang Yugui
2022-09-07 7:55 ` Thomas Zimmermann
2022-09-07 8:47 ` Wang Yugui
2022-09-07 9:18 ` Thomas Zimmermann
2022-09-13 8:34 ` Thomas Zimmermann
2022-09-13 14:25 ` Wang Yugui
2022-09-13 14:44 ` Thomas Zimmermann
2022-09-13 15:15 ` Wang Yugui
2022-09-14 7:59 ` Thomas Zimmermann
2022-09-14 8:29 ` Wang Yugui
2022-09-14 14:36 ` Thomas Zimmermann
2022-09-14 14:58 ` Wang Yugui
2022-09-14 15:41 ` Thomas Zimmermann
2022-09-14 16:25 ` Wang Yugui
2022-09-15 12:54 ` Thomas Zimmermann
2022-09-15 14:41 ` Wang Yugui
2022-09-20 7:57 ` Thomas Zimmermann
2022-09-20 9:02 ` Wang Yugui
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