[Bug 210429] AMDGPU - DRM connector force-probe after DPMS causes monitor to reconnect

https://bugzilla.kernel.org/show_bug.cgi?id=210429

--- Comment #2 from jordanleppert@gmail.com --- Here are logs using Wayfire (a wlroots compositor), note the disconnect immediately after modesetting. The DPMS sleep happened at 15:46:45, and the wakeup at 15:46:54.

DD 22-12-20 15:46:45.685 - [backend/drm/drm.c:1075] Reallocating CRTCs DD 22-12-20 15:46:45.686 - [backend/drm/drm.c:1086] State before reallocation: DD 22-12-20 15:46:45.686 - [backend/drm/drm.c:1092] 'DP-1' crtc=0 state=3 desired_enabled=0 DD 22-12-20 15:46:45.686 - [backend/drm/drm.c:1092] 'DP-2' crtc=1 state=3 desired_enabled=1 DD 22-12-20 15:46:45.686 - [backend/drm/drm.c:1092] 'HDMI-A-1' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:45.686 - [backend/drm/drm.c:1092] 'HDMI-A-2' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:45.686 - [backend/drm/drm.c:1143] State after reallocation: DD 22-12-20 15:46:45.686 - [backend/drm/drm.c:1150] 'DP-1' crtc=0 state=3 desired_enabled=0 DD 22-12-20 15:46:45.686 - [backend/drm/drm.c:1150] 'DP-2' crtc=1 state=3 desired_enabled=1 DD 22-12-20 15:46:45.686 - [backend/drm/drm.c:1150] 'HDMI-A-1' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:45.686 - [backend/drm/drm.c:1150] 'HDMI-A-2' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:45.719 - [backend/drm/drm.c:1075] Reallocating CRTCs DD 22-12-20 15:46:45.719 - [backend/drm/drm.c:1086] State before reallocation: DD 22-12-20 15:46:45.719 - [backend/drm/drm.c:1092] 'DP-1' crtc=0 state=3 desired_enabled=0 DD 22-12-20 15:46:45.719 - [backend/drm/drm.c:1092] 'DP-2' crtc=1 state=3 desired_enabled=0 DD 22-12-20 15:46:45.719 - [backend/drm/drm.c:1092] 'HDMI-A-1' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:45.719 - [backend/drm/drm.c:1092] 'HDMI-A-2' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:45.719 - [backend/drm/drm.c:1143] State after reallocation: DD 22-12-20 15:46:45.719 - [backend/drm/drm.c:1150] 'DP-1' crtc=0 state=3 desired_enabled=0 DD 22-12-20 15:46:45.719 - [backend/drm/drm.c:1150] 'DP-2' crtc=1 state=3 desired_enabled=0 DD 22-12-20 15:46:45.719 - [backend/drm/drm.c:1150] 'HDMI-A-1' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:45.719 - [backend/drm/drm.c:1150] 'HDMI-A-2' crtc=-1 state=0 desired_enabled=0 II 22-12-20 15:46:54.467 - [backend/drm/drm.c:793] connector DP-1: Modesetting with '3840x2160@59997mHz' DD 22-12-20 15:46:54.467 - [backend/drm/drm.c:679] connector DP-1: Initializing renderer II 22-12-20 15:46:54.483 - [backend/drm/drm.c:793] connector DP-2: Modesetting with '3840x2160@59997mHz' DD 22-12-20 15:46:54.483 - [backend/drm/drm.c:679] connector DP-2: Initializing renderer II 22-12-20 15:46:56.808 - [backend/drm/drm.c:1219] Scanning DRM connectors on /dev/dri/card0 II 22-12-20 15:46:56.810 - [backend/drm/drm.c:1388] 'DP-2' disconnected DD 22-12-20 15:46:56.907 - [backend/drm/drm.c:1075] Reallocating CRTCs DD 22-12-20 15:46:56.907 - [backend/drm/drm.c:1086] State before reallocation: DD 22-12-20 15:46:56.907 - [backend/drm/drm.c:1092] 'DP-1' crtc=0 state=3 desired_enabled=1 DD 22-12-20 15:46:56.907 - [backend/drm/drm.c:1092] 'DP-2' crtc=1 state=3 desired_enabled=0 DD 22-12-20 15:46:56.907 - [backend/drm/drm.c:1092] 'HDMI-A-1' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:56.907 - [backend/drm/drm.c:1092] 'HDMI-A-2' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:56.907 - [backend/drm/drm.c:1143] State after reallocation: DD 22-12-20 15:46:56.907 - [backend/drm/drm.c:1150] 'DP-1' crtc=0 state=3 desired_enabled=1 DD 22-12-20 15:46:56.907 - [backend/drm/drm.c:1150] 'DP-2' crtc=1 state=3 desired_enabled=0 DD 22-12-20 15:46:56.907 - [backend/drm/drm.c:1150] 'HDMI-A-1' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:56.907 - [backend/drm/drm.c:1150] 'HDMI-A-2' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:56.907 - [backend/drm/drm.c:1049] connector DP-2: De-allocating CRTC 1 DD 22-12-20 15:46:56.908 - [backend/drm/drm.c:1075] Reallocating CRTCs DD 22-12-20 15:46:56.908 - [backend/drm/drm.c:1086] State before reallocation: DD 22-12-20 15:46:56.908 - [backend/drm/drm.c:1092] 'DP-1' crtc=0 state=3 desired_enabled=1 DD 22-12-20 15:46:56.908 - [backend/drm/drm.c:1092] 'DP-2' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:56.908 - [backend/drm/drm.c:1092] 'HDMI-A-1' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:56.908 - [backend/drm/drm.c:1092] 'HDMI-A-2' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:56.908 - [backend/drm/drm.c:1143] State after reallocation: DD 22-12-20 15:46:56.908 - [backend/drm/drm.c:1150] 'DP-1' crtc=0 state=3 desired_enabled=1 DD 22-12-20 15:46:56.908 - [backend/drm/drm.c:1150] 'DP-2' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:56.908 - [backend/drm/drm.c:1150] 'HDMI-A-1' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:56.908 - [backend/drm/drm.c:1150] 'HDMI-A-2' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:56.908 - [backend/drm/drm.c:1442] No connector for CRTC 49 II 22-12-20 15:46:57.102 - [backend/drm/drm.c:1219] Scanning DRM connectors on /dev/dri/card0 II 22-12-20 15:46:57.102 - [backend/drm/drm.c:1388] 'DP-1' disconnected DD 22-12-20 15:46:57.173 - [backend/drm/drm.c:1075] Reallocating CRTCs DD 22-12-20 15:46:57.173 - [backend/drm/drm.c:1086] State before reallocation: DD 22-12-20 15:46:57.173 - [backend/drm/drm.c:1092] 'DP-1' crtc=0 state=3 desired_enabled=0 DD 22-12-20 15:46:57.173 - [backend/drm/drm.c:1092] 'DP-2' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:57.173 - [backend/drm/drm.c:1092] 'HDMI-A-1' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:57.173 - [backend/drm/drm.c:1092] 'HDMI-A-2' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:57.174 - [backend/drm/drm.c:1143] State after reallocation: DD 22-12-20 15:46:57.174 - [backend/drm/drm.c:1150] 'DP-1' crtc=0 state=3 desired_enabled=0 DD 22-12-20 15:46:57.174 - [backend/drm/drm.c:1150] 'DP-2' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:57.174 - [backend/drm/drm.c:1150] 'HDMI-A-1' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:57.174 - [backend/drm/drm.c:1150] 'HDMI-A-2' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:57.174 - [backend/drm/drm.c:1049] connector DP-1: De-allocating CRTC 0 DD 22-12-20 15:46:57.174 - [backend/drm/drm.c:1075] Reallocating CRTCs DD 22-12-20 15:46:57.174 - [backend/drm/drm.c:1086] State before reallocation: DD 22-12-20 15:46:57.174 - [backend/drm/drm.c:1092] 'DP-1' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:57.174 - [backend/drm/drm.c:1092] 'DP-2' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:57.174 - [backend/drm/drm.c:1092] 'HDMI-A-1' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:57.174 - [backend/drm/drm.c:1092] 'HDMI-A-2' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:57.175 - [backend/drm/drm.c:1143] State after reallocation: DD 22-12-20 15:46:57.175 - [backend/drm/drm.c:1150] 'DP-1' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:57.175 - [backend/drm/drm.c:1150] 'DP-2' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:57.175 - [backend/drm/drm.c:1150] 'HDMI-A-1' crtc=-1 state=0 desired_enabled=0 DD 22-12-20 15:46:57.175 - [backend/drm/drm.c:1150] 'HDMI-A-2' crtc=-1 state=0 desired_enabled=0