Comment 17 for bug 1914670

Revision history for this message
Ian C (ichok) wrote :

1. "udevadm monitor -s drm" -->
```
monitor will print the received events for:
UDEV - the event which udev sends out after rule processing
KERNEL - the kernel uevent
```

2. "cat /sys/class/drm/card0-*/status" -->
```
disconnected
connected
disconnected
```

3. "cat /sys/kernel/debug/dri/0/i915_display_info" -->
```
CRTC info
---------
[CRTC:91:pipe A]:
 uapi: enable=no, active=no, mode="": 0 0 0 0 0 0 0 0 0 0 0x0 0x0
 [PLANE:31:plane 1A]: type=PRI
  uapi: fb=0,n/a,0x0, src=1920.000000x1080.000000+0.000000+682.000000, dst=1920x1080+0+0, rotation=0 (0x00000001)
 [PLANE:39:plane 2A]: type=OVL
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 [PLANE:47:plane 3A]: type=OVL
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 [PLANE:55:plane 4A]: type=OVL
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 [PLANE:63:plane 5A]: type=OVL
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 [PLANE:71:plane 6A]: type=OVL
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 [PLANE:79:plane 7A]: type=OVL
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 [PLANE:87:cursor A]: type=CUR
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 underrun reporting: cpu=yes pch=yes
[CRTC:152:pipe B]:
 uapi: enable=yes, active=yes, mode="": 0 141380 1920 1968 2000 2142 1080 1083 1089 1100 0x0 0x9
 hw: active=yes, adjusted_mode="1920x1080": 60 141380 1920 1968 2000 2142 1080 1083 1089 1100 0x48 0x9
 pipe src size=1920x1080, dither=yes, bpp=18
 num_scalers=2, scaler_users=0 scaler_id=-1, scalers[0]: use=no, mode=0, scalers[1]: use=no, mode=0
 [ENCODER:275:DDI A]: connectors:
  [CONNECTOR:276:eDP-1]
 [PLANE:92:plane 1B]: type=PRI
  uapi: fb=277,XR24 little-endian (0x34325258),1920x1080, src=1920.000000x1080.000000+0.000000+0.000000, dst=1920x1080+0+0, rotation=0 (0x00000001)
  hw: fb=277,XR24 little-endian (0x34325258),1920x1080, visible=yes, src=1920.000000x1080.000000+0.000000+0.000000, dst=1920x1080+0+0, rotation=0 (0x00000001)
 [PLANE:100:plane 2B]: type=OVL
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 [PLANE:108:plane 3B]: type=OVL
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 [PLANE:116:plane 4B]: type=OVL
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 [PLANE:124:plane 5B]: type=OVL
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 [PLANE:132:plane 6B]: type=OVL
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 [PLANE:140:plane 7B]: type=OVL
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 [PLANE:148:cursor B]: type=CUR
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 underrun reporting: cpu=yes pch=yes
[CRTC:213:pipe C]:
 uapi: enable=no, active=no, mode="": 0 0 0 0 0 0 0 0 0 0 0x0 0x0
 [PLANE:153:plane 1C]: type=PRI
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 [PLANE:161:plane 2C]: type=OVL
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 [PLANE:169:plane 3C]: type=OVL
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 [PLANE:177:plane 4C]: type=OVL
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 [PLANE:185:plane 5C]: type=OVL
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 [PLANE:193:plane 6C]: type=OVL
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 [PLANE:201:plane 7C]: type=OVL
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 [PLANE:209:cursor C]: type=CUR
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 underrun reporting: cpu=yes pch=yes
[CRTC:274:pipe D]:
 uapi: enable=no, active=no, mode="": 0 0 0 0 0 0 0 0 0 0 0x0 0x0
 [PLANE:214:plane 1D]: type=PRI
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 [PLANE:222:plane 2D]: type=OVL
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 [PLANE:230:plane 3D]: type=OVL
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 [PLANE:238:plane 4D]: type=OVL
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 [PLANE:246:plane 5D]: type=OVL
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 [PLANE:254:plane 6D]: type=OVL
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 [PLANE:262:plane 7D]: type=OVL
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 [PLANE:270:cursor D]: type=CUR
  uapi: fb=0,n/a,0x0, src=0.000000x0.000000+0.000000+0.000000, dst=0x0+0+0, rotation=0 (0x00000001)
 underrun reporting: cpu=yes pch=yes

Connector info
--------------
[CONNECTOR:276:eDP-1]: status: connected
 physical dimensions: 310x170mm
 subpixel order: Unknown
 CEA rev: 0
 DPCD rev: 11
 audio support: no
 fixed mode: "1920x1080": 60 141380 1920 1968 2000 2142 1080 1083 1089 1100 0x48 0x9
 DP branch device present: no
 modes:
  "1920x1080": 60 141380 1920 1968 2000 2142 1080 1083 1089 1100 0x48 0x9
  "1920x1080": 48 113100 1920 1968 2000 2142 1080 1083 1089 1100 0x40 0x9
[CONNECTOR:284:HDMI-A-1]: status: disconnected
[CONNECTOR:293:DP-1]: status: disconnected
```