linux:/home/linux # xrandr
Screen 0: minimum 320 x 200, current 2944 x 1080, maximum 16384 x 16384
DisplayPort-0 disconnected (normal left inverted right x axis y axis)
HDMI-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 1060mm x 626mm
   1920x1080      60.0*+   50.0     59.9     30.0     25.0     24.0     30.0     24.0
   1920x1080i     60.1     50.0     60.0
   1680x1050      59.9
   1600x900       60.0
   1280x1024      75.0     60.0
   1440x900       59.9
   1366x768       59.8
   1280x800       59.9
   1152x864       75.0
   1280x720       60.0     50.0     59.9
   1440x576i      50.1
   1024x768       75.1     70.1     60.0
   1440x480i      60.1     60.1
   832x624        74.6
   800x600        72.2     75.0     60.3
   720x576        50.0
   720x480        60.0     59.9
   640x480        75.0     72.8     66.7     60.0     59.9
   720x400        70.1
DVI-0 connected 1024x768+1920+0 (normal left inverted right x axis y axis) 0mm x 0mm
   1024x768       60.0*
   800x600        60.3     56.2
   848x480        60.0
   640x480        59.9
DVI-1 disconnected (normal left inverted right x axis y axis)
linux:/home/linux #

[    4.321526] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 41
[    4.321528] Raw EDID:
[    4.321530]  	00 ff ff ff ff ff ff 00 1e 6d 23 57 7d 06 07 00
[    4.321532]  	00 7f 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[    4.321534]  	0e 50 54 a7 6b 80 b3 00 81 80 81 40 71 4f 01 01
[    4.321536]  	00 7f 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[    4.321538]  	35 00 13 2b 21 00 00 1a 02 3a 80 18 71 38 2d 40
[    4.321540]  	00 7f 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[    4.321542]  	4b 1e 53 0f 00 0a 20 20 20 20 20 20 00 00 00 fc
[    4.321544]  	00 7f 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[    4.321547] radeon 0000:01:00.0: DVI-I-1: EDID block 0 invalid.