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

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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.

Best regards
Thomas


Best Regards
Wang Yugui (wangyugui@xxxxxxxxxxxx)
2022/09/07



Best regards
Thomas


Best Regards
Wang Yugui (wangyugui@xxxxxxxxxxxx)
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@xxxxxxxxxxxx)
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)
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

Attachment: OpenPGP_signature
Description: OpenPGP digital signature


[Index of Archives]     [Linux DRI Users]     [Linux Intel Graphics]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux