linux查看显示器信息

linux查看显示器信息

  1. 看看有那些显示端口

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     root@dark:~# ls /sys/class/drm/
 card0       card0-DP-2  card0-eDP-1     card0-HDMI-A-2  card0-VGA-1  version
 card0-DP-1  card0-DP-3  card0-HDMI-A-1  card0-HDMI-A-3  controlD64

  2. 检查是那个端口正在使用

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     root@dark:/sys/class/drm# cat card0-HDMI-A-2/enabled 
 enabled
 root@dark:/sys/class/drm# cat card0-HDMI-A-3/enabled 
 disabled

  3. 打印出显示信息

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     /sys/class/drm# cat card0-HDMI-A-1/edid | edid-decode

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     edid-decode (hex):

 00 ff ff ff ff ff ff 00 10 ac f4 40 42 4c 37 32
 13 1a 01 03 80 33 1d 78 ea eb f5 a6 56 51 9c 26
 10 50 54 a5 4b 00 71 4f 81 80 a9 c0 d1 c0 01 01
 01 01 01 01 01 01 02 3a 80 18 71 38 2d 40 58 2c
 45 00 fd 1e 11 00 00 1e 00 00 00 ff 00 32 4a 30
 36 52 36 35 35 32 37 4c 42 0a 00 00 00 fc 00 44
 45 4c 4c 20 50 32 33 31 37 48 0a 20 00 00 00 fd
 00 38 4c 1e 53 11 00 0a 20 20 20 20 20 20 01 fb

 02 03 17 b1 4c 90 05 04 03 02 07 16 01 14 1f 12
 13 65 03 0c 00 10 00 02 3a 80 18 71 38 2d 40 58
 2c 45 00 fd 1e 11 00 00 1e 01 1d 80 18 71 1c 16
 20 58 2c 25 00 fd 1e 11 00 00 9e 01 1d 00 72 51
 d0 1e 20 6e 28 55 00 fd 1e 11 00 00 1e 8c 0a d0
 8a 20 e0 2d 10 10 3e 96 00 fd 1e 11 00 00 18 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ed

 ----------------

 Block 0, Base EDID:
   EDID Structure Version & Revision: 1.3
   Vendor & Product Identification:
     Manufacturer: DEL
     Model: 16628
     Serial Number: 842484802
     Made in: week 19 of 2016
   Basic Display Parameters & Features:
     Digital display
     Maximum image size: 51 cm x 29 cm
     Gamma: 2.20
     DPMS levels: Standby Suspend Off
     RGB color display
     First detailed timing is the preferred timing
   Color Characteristics:
     Red  : 0.6513, 0.3378
     Green: 0.3183, 0.6123
     Blue : 0.1513, 0.0654
     White: 0.3134, 0.3291
   Established Timings I & II:
     IBM     :   720x400    70.082 Hz   9:5    31.467 kHz  28.320 MHz
     DMT 0x04:   640x480    59.940 Hz   4:3    31.469 kHz  25.175 MHz
     DMT 0x06:   640x480    75.000 Hz   4:3    37.500 kHz  31.500 MHz
     DMT 0x09:   800x600    60.317 Hz   4:3    37.879 kHz  40.000 MHz
     DMT 0x0b:   800x600    75.000 Hz   4:3    46.875 kHz  49.500 MHz
     DMT 0x10:  1024x768    60.004 Hz   4:3    48.363 kHz  65.000 MHz
     DMT 0x12:  1024x768    75.029 Hz   4:3    60.023 kHz  78.750 MHz
     DMT 0x24:  1280x1024   75.025 Hz   5:4    79.976 kHz 135.000 MHz
   Standard Timings:
     DMT 0x15:  1152x864    75.000 Hz   4:3    67.500 kHz 108.000 MHz
     DMT 0x23:  1280x1024   60.020 Hz   5:4    63.981 kHz 108.000 MHz
     DMT 0x53:  1600x900    60.000 Hz  16:9    60.000 kHz 108.000 MHz (RB)
     DMT 0x52:  1920x1080   60.000 Hz  16:9    67.500 kHz 148.500 MHz
   Detailed Timing Descriptors:
     DTD 1:  1920x1080   60.000 Hz  16:9    67.500 kHz 148.500 MHz (509 mm x 286 mm)
                  Hfront   88 Hsync  44 Hback 148 Hpol P
                  Vfront    4 Vsync   5 Vback  36 Vpol P
     Display Product Serial Number: '2J06R65527LB'
     Display Product Name: 'DELL P2317H'
   Display Range Limits:
     Monitor ranges (GTF): 56-76 Hz V, 30-83 kHz H, max dotclock 170 MHz
   Extension blocks: 1
 Checksum: 0xfb

 ----------------

 Block 1, CTA-861 Extension Block:
   Revision: 3
   Underscans IT Video Formats by default
   Supports YCbCr 4:4:4
   Supports YCbCr 4:2:2
   Native detailed modes: 1
   Video Data Block:
     VIC  16:  1920x1080   60.000 Hz  16:9    67.500 kHz 148.500 MHz (native)
     VIC   5:  1920x1080i  60.000 Hz  16:9    33.750 kHz  74.250 MHz
     VIC   4:  1280x720    60.000 Hz  16:9    45.000 kHz  74.250 MHz
     VIC   3:   720x480    59.940 Hz  16:9    31.469 kHz  27.000 MHz
     VIC   2:   720x480    59.940 Hz   4:3    31.469 kHz  27.000 MHz
     VIC   7:  1440x480i   59.940 Hz  16:9    15.734 kHz  27.000 MHz
     VIC  22:  1440x576i   50.000 Hz  16:9    15.625 kHz  27.000 MHz
     VIC   1:   640x480    59.940 Hz   4:3    31.469 kHz  25.175 MHz
     VIC  20:  1920x1080i  50.000 Hz  16:9    28.125 kHz  74.250 MHz
     VIC  31:  1920x1080   50.000 Hz  16:9    56.250 kHz 148.500 MHz
     VIC  18:   720x576    50.000 Hz  16:9    31.250 kHz  27.000 MHz
     VIC  19:  1280x720    50.000 Hz  16:9    37.500 kHz  74.250 MHz
   Vendor-Specific Data Block (HDMI), OUI 00-0C-03:
     Source physical address: 1.0.0.0
   Detailed Timing Descriptors:
     DTD 2:  1920x1080   60.000 Hz  16:9    67.500 kHz 148.500 MHz (509 mm x 286 mm)
                  Hfront   88 Hsync  44 Hback 148 Hpol P
                  Vfront    4 Vsync   5 Vback  36 Vpol P
     DTD 3:  1920x1080i  60.000 Hz  16:9    33.750 kHz  74.250 MHz (509 mm x 286 mm)
                  Hfront   88 Hsync  44 Hback 148 Hpol P
                  Vfront    2 Vsync   5 Vback  15 Vpol P Vfront +0.5 Odd Field
                  Vfront    2 Vsync   5 Vback  15 Vpol P Vback  +0.5 Even Field
     DTD 4:  1280x720    60.000 Hz  16:9    45.000 kHz  74.250 MHz (509 mm x 286 mm)
                  Hfront  110 Hsync  40 Hback 220 Hpol P
                  Vfront    5 Vsync   5 Vback  20 Vpol P
     DTD 5:   720x480    59.940 Hz   3:2    31.469 kHz  27.000 MHz (509 mm x 286 mm)
                  Hfront   16 Hsync  62 Hback  60 Hpol N
                  Vfront    9 Vsync   6 Vback  30 Vpol N
 Checksum: 0xed

manjaro 安装 edid-decode

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sudo pacman -S edid-decode