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. 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
