Ok, I used the kernel command line param and indeed the display names are as you specified. When KMS is disabled, there is no /sys/class/drm/card0-LVDS*/modes file.
Here's the output of xrandr:
$ xrandr --verbose
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 4096 x 4096
VGA disconnected (normal left inverted right x axis y axis)
Identifier: 0x3b
Timestamp: 19619
Subpixel: unknown
Clones:
CRTCs: 0 1
Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000
filter:
LVDS connected 1024x768+0+0 (0x3e) normal (normal left inverted right x axis y axis) 287mm x 215mm
Identifier: 0x3c
Timestamp: 19619
Subpixel: horizontal rgb
Clones:
CRTC: 1
CRTCs: 1
Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000
filter:
EDID_DATA:
00ffffffffffff0030ae204000000000
23110103801d1578ea6f959c544c8726
21505400000001010101010101010101
01010101010164190040410026301888
36001fd7100000182815004041002630
188836001fd7100000180000000f0061
43326143280f010030640053000000fe
004c544431343145434d420a202000e9
PANEL_FITTING: full_aspect
supported: center full_aspect full
BACKLIGHT_CONTROL: kernel
supported: native legacy combination kernel
BACKLIGHT: 15 (0x0000000f) range: (0,15)
1024x768 (0x3e) 65.0MHz -HSync -VSync *current +preferred
h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.4KHz
v: height 768 start 771 end 777 total 806 clock 60.0Hz
1024x768 (0x3f) 94.5MHz +HSync +VSync
h: width 1024 start 1072 end 1168 total 1376 skew 0 clock 68.7KHz
v: height 768 start 769 end 772 total 808 clock 85.0Hz
1024x768 (0x40) 78.8MHz +HSync +VSync
h: width 1024 start 1040 end 1136 total 1312 skew 0 clock 60.0KHz
v: height 768 start 769 end 772 total 800 clock 75.0Hz
1024x768 (0x41) 75.0MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1328 skew 0 clock 56.5KHz
v: height 768 start 771 end 777 total 806 clock 70.1Hz
1024x768 (0x3e) 65.0MHz -HSync -VSync *current
h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.4KHz
v: height 768 start 771 end 777 total 806 clock 60.0Hz
1024x768 (0x42) 54.2MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 40.3KHz
v: height 768 start 771 end 777 total 806 clock 50.0Hz
832x624 (0x43) 57.3MHz -HSync -VSync
h: width 832 start 864 end 928 total 1152 skew 0 clock 49.7KHz
v: height 624 start 625 end 628 total 667 clock 74.6Hz
800x600 (0x44) 56.3MHz +HSync +VSync
h: width 800 start 832 end 896 total 1048 skew 0 clock 53.7KHz
v: height 600 start 601 end 604 total 631 clock 85.1Hz
800x600 (0x45) 50.0MHz +HSync +VSync
h: width 800 start 856 end 976 total 1040 skew 0 clock 48.1KHz
v: height 600 start 637 end 643 total 666 clock 72.2Hz
800x600 (0x46) 49.5MHz +HSync +VSync
h: width 800 start 816 end 896 total 1056 skew 0 clock 46.9KHz
v: height 600 start 601 end 604 total 625 clock 75.0Hz
800x600 (0x47) 40.0MHz +HSync +VSync
h: width 800 start 840 end 968 total 1056 skew 0 clock 37.9KHz
v: height 600 start 601 end 605 total 628 clock 60.3Hz
800x600 (0x48) 36.0MHz +HSync +VSync
h: width 800 start 824 end 896 total 1024 skew 0 clock 35.2KHz
v: height 600 start 601 end 603 total 625 clock 56.2Hz
640x480 (0x49) 36.0MHz -HSync -VSync
h: width 640 start 696 end 752 total 832 skew 0 clock 43.3KHz
v: height 480 start 481 end 484 total 509 clock 85.0Hz
640x480 (0x4a) 31.5MHz -HSync -VSync
h: width 640 start 664 end 704 total 832 skew 0 clock 37.9KHz
v: height 480 start 489 end 492 total 520 clock 72.8Hz
640x480 (0x4b) 31.5MHz -HSync -VSync
h: width 640 start 656 end 720 total 840 skew 0 clock 37.5KHz
v: height 480 start 481 end 484 total 500 clock 75.0Hz
640x480 (0x4c) 25.2MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.5KHz
v: height 480 start 490 end 492 total 525 clock 59.9Hz
720x400 (0x4d) 35.5MHz -HSync +VSync
h: width 720 start 756 end 828 total 936 skew 0 clock 37.9KHz
v: height 400 start 401 end 404 total 446 clock 85.0Hz
640x400 (0x4e) 31.5MHz -HSync +VSync
h: width 640 start 672 end 736 total 832 skew 0 clock 37.9KHz
v: height 400 start 401 end 404 total 445 clock 85.1Hz
640x350 (0x4f) 31.5MHz +HSync -VSync
h: width 640 start 672 end 736 total 832 skew 0 clock 37.9KHz
v: height 350 start 382 end 385 total 445 clock 85.1Hz
TMDS-1 disconnected (normal left inverted right x axis y axis)
Identifier: 0x3d
Timestamp: 19619
Subpixel: horizontal rgb
Clones:
CRTCs: 0 1
Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000
filter:
BROADCAST_RGB: 0 (0x00000000) range: (0,1)
Ok, I used the kernel command line param and indeed the display names are as you specified. When KMS is disabled, there is no /sys/class/ drm/card0- LVDS*/modes file.
Here's the output of xrandr:
0. 000000 1.000000 0.000000
0. 000000 0.000000 1.000000
0. 000000 1.000000 0.000000
0. 000000 0.000000 1.000000 f0030ae20400000 0000 578ea6f959c544c 8726 101010101010101 0101 419004041002630 1888 018281500404100 2630 00000180000000f 0061 100306400530000 00fe 145434d420a2020 00e9
0. 000000 1.000000 0.000000
0. 000000 0.000000 1.000000
$ xrandr --verbose
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 4096 x 4096
VGA disconnected (normal left inverted right x axis y axis)
Identifier: 0x3b
Timestamp: 19619
Subpixel: unknown
Clones:
CRTCs: 0 1
Transform: 1.000000 0.000000 0.000000
filter:
LVDS connected 1024x768+0+0 (0x3e) normal (normal left inverted right x axis y axis) 287mm x 215mm
Identifier: 0x3c
Timestamp: 19619
Subpixel: horizontal rgb
Clones:
CRTC: 1
CRTCs: 1
Transform: 1.000000 0.000000 0.000000
filter:
EDID_DATA:
00fffffffffff
23110103801d1
2150540000000
0101010101016
36001fd710000
188836001fd71
43326143280f0
004c544431343
PANEL_FITTING: full_aspect
supported: center full_aspect full
BACKLIGHT_CONTROL: kernel
supported: native legacy combination kernel
BACKLIGHT: 15 (0x0000000f) range: (0,15)
1024x768 (0x3e) 65.0MHz -HSync -VSync *current +preferred
h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.4KHz
v: height 768 start 771 end 777 total 806 clock 60.0Hz
1024x768 (0x3f) 94.5MHz +HSync +VSync
h: width 1024 start 1072 end 1168 total 1376 skew 0 clock 68.7KHz
v: height 768 start 769 end 772 total 808 clock 85.0Hz
1024x768 (0x40) 78.8MHz +HSync +VSync
h: width 1024 start 1040 end 1136 total 1312 skew 0 clock 60.0KHz
v: height 768 start 769 end 772 total 800 clock 75.0Hz
1024x768 (0x41) 75.0MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1328 skew 0 clock 56.5KHz
v: height 768 start 771 end 777 total 806 clock 70.1Hz
1024x768 (0x3e) 65.0MHz -HSync -VSync *current
h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.4KHz
v: height 768 start 771 end 777 total 806 clock 60.0Hz
1024x768 (0x42) 54.2MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 40.3KHz
v: height 768 start 771 end 777 total 806 clock 50.0Hz
832x624 (0x43) 57.3MHz -HSync -VSync
h: width 832 start 864 end 928 total 1152 skew 0 clock 49.7KHz
v: height 624 start 625 end 628 total 667 clock 74.6Hz
800x600 (0x44) 56.3MHz +HSync +VSync
h: width 800 start 832 end 896 total 1048 skew 0 clock 53.7KHz
v: height 600 start 601 end 604 total 631 clock 85.1Hz
800x600 (0x45) 50.0MHz +HSync +VSync
h: width 800 start 856 end 976 total 1040 skew 0 clock 48.1KHz
v: height 600 start 637 end 643 total 666 clock 72.2Hz
800x600 (0x46) 49.5MHz +HSync +VSync
h: width 800 start 816 end 896 total 1056 skew 0 clock 46.9KHz
v: height 600 start 601 end 604 total 625 clock 75.0Hz
800x600 (0x47) 40.0MHz +HSync +VSync
h: width 800 start 840 end 968 total 1056 skew 0 clock 37.9KHz
v: height 600 start 601 end 605 total 628 clock 60.3Hz
800x600 (0x48) 36.0MHz +HSync +VSync
h: width 800 start 824 end 896 total 1024 skew 0 clock 35.2KHz
v: height 600 start 601 end 603 total 625 clock 56.2Hz
640x480 (0x49) 36.0MHz -HSync -VSync
h: width 640 start 696 end 752 total 832 skew 0 clock 43.3KHz
v: height 480 start 481 end 484 total 509 clock 85.0Hz
640x480 (0x4a) 31.5MHz -HSync -VSync
h: width 640 start 664 end 704 total 832 skew 0 clock 37.9KHz
v: height 480 start 489 end 492 total 520 clock 72.8Hz
640x480 (0x4b) 31.5MHz -HSync -VSync
h: width 640 start 656 end 720 total 840 skew 0 clock 37.5KHz
v: height 480 start 481 end 484 total 500 clock 75.0Hz
640x480 (0x4c) 25.2MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.5KHz
v: height 480 start 490 end 492 total 525 clock 59.9Hz
720x400 (0x4d) 35.5MHz -HSync +VSync
h: width 720 start 756 end 828 total 936 skew 0 clock 37.9KHz
v: height 400 start 401 end 404 total 446 clock 85.0Hz
640x400 (0x4e) 31.5MHz -HSync +VSync
h: width 640 start 672 end 736 total 832 skew 0 clock 37.9KHz
v: height 400 start 401 end 404 total 445 clock 85.1Hz
640x350 (0x4f) 31.5MHz +HSync -VSync
h: width 640 start 672 end 736 total 832 skew 0 clock 37.9KHz
v: height 350 start 382 end 385 total 445 clock 85.1Hz
TMDS-1 disconnected (normal left inverted right x axis y axis)
Identifier: 0x3d
Timestamp: 19619
Subpixel: horizontal rgb
Clones:
CRTCs: 0 1
Transform: 1.000000 0.000000 0.000000
filter:
BROADCAST_RGB: 0 (0x00000000) range: (0,1)