edid-decode "/sys/class/drm/card0-eDP-1/edid": EDID (hex): 00ffffffffffff0009e54d0800000000 011c0104a522137802de50a3544c9926 0f505400000001010101010101010101 0101010101019d8580a070383e406c30 aa0058c11000001a0000000000000000 00000000000000000000000000fe0042 4f452048460a202020202020000000fe 004e5631353646484d2d4e34470a0004 Extracted contents: header: 00 ff ff ff ff ff ff 00 serial number: ... version: 01 04 basic params: a5 22 13 78 02 chroma info: de 50 a3 54 4c 99 26 0f 50 54 established: 00 00 00 standard: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 descriptor 1: 9d 85 80 a0 70 38 3e 40 6c 30 aa 00 58 c1 10 00 00 1a descriptor 2: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 descriptor 3: 00 00 00 fe 00 42 4f 45 20 48 46 0a 20 20 20 20 20 20 descriptor 4: 00 00 00 fe 00 4e 56 31 35 36 46 48 4d 2d 4e 34 47 0a extensions: 00 checksum: 04 EDID version: 1.4 Manufacturer: BOE Model 84d Serial Number ... Made in week 1 of 2018 Digital display 8 bits per primary color channel DisplayPort interface Maximum image size: 34 cm x 19 cm Gamma: 2.20 Supported color formats: RGB 4:4:4 First detailed timing includes the native pixel format and preferred refresh rate Display x,y Chromaticity: Red: 0.6396, 0.3291 Green: 0.2998, 0.5996 Blue: 0.1494, 0.0595 White: 0.3125, 0.3281 Established timings supported: Standard timings supported: Detailed mode: Clock 342.050 MHz, 344 mm x 193 mm 1920 2028 2076 2080 hborder 0 1080 1090 1100 1142 vborder 0 +hsync -vsync VertFreq: 143 Hz, HorFreq: 164447 Hz Manufacturer-specified data, tag 0 ASCII string: BOE HF ASCII string: NV156FHM-N4G Checksum: 0x4 (valid) EDID block does NOT conform to EDID 1.4! Missing name descriptor Missing monitor ranges edid-decode "/sys/class/drm/card0-HDMI-A-1/edid": EDID (hex): 00ffffffffffff0022f0293301010101 1f1e0103802e1a782afb25a2564e9726 0e5054a10800d1c081c081809500a9c0 b30081000101023a801871382d40582c 4500ca021100001e000000fd00323c1e 5011000a202020202020000000fc0048 502032316b640a2020202020000000ff 00434e43303331305237360a202000d2 Extracted contents: header: 00 ff ff ff ff ff ff 00 serial number: ... version: 01 03 basic params: 80 2e 1a 78 2a chroma info: fb 25 a2 56 4e 97 26 0e 50 54 established: a1 08 00 standard: d1 c0 81 c0 81 80 95 00 a9 c0 b3 00 81 00 01 01 descriptor 1: 02 3a 80 18 71 38 2d 40 58 2c 45 00 ca 02 11 00 00 1e descriptor 2: 00 00 00 fd 00 32 3c 1e 50 11 00 0a 20 20 20 20 20 20 descriptor 3: 00 00 00 fc 00 48 50 20 32 31 6b 64 0a 20 20 20 20 20 descriptor 4: 00 00 00 ff 00 43 4e 43 30 33 31 30 52 37 36 0a 20 20 extensions: 00 checksum: d2 EDID version: 1.3 Manufacturer: HWP Model 3329 Serial Number ... Made in week 31 of 2020 Digital display Maximum image size: 46 cm x 26 cm Gamma: 2.20 DPMS levels: Off RGB color display First detailed timing is preferred timing Display x,y Chromaticity: Red: 0.6357, 0.3388 Green: 0.3066, 0.5927 Blue: 0.1484, 0.0566 White: 0.3134, 0.3291 Established timings supported: 720x400@70Hz 9:5 HorFreq: 31469 Hz Clock: 28.320 MHz 640x480@60Hz 4:3 HorFreq: 31469 Hz Clock: 25.175 MHz 800x600@60Hz 4:3 HorFreq: 37900 Hz Clock: 40.000 MHz 1024x768@60Hz 4:3 HorFreq: 48400 Hz Clock: 65.000 MHz Standard timings supported: 1920x1080@60Hz 16:9 1280x720@60Hz 16:9 1280x1024@60Hz 5:4 HorFreq: 64000 Hz Clock: 108.000 MHz 1440x900@60Hz 16:10 HorFreq: 55500 Hz Clock: 88.750 MHz 1600x900@60Hz 16:9 1680x1050@60Hz 16:10 HorFreq: 64700 Hz Clock: 119.000 MHz 1280x800@60Hz 16:10 Detailed mode: Clock 148.500 MHz, 458 mm x 258 mm 1920 2008 2052 2200 hborder 0 1080 1084 1089 1125 vborder 0 +hsync +vsync VertFreq: 60 Hz, HorFreq: 67500 Hz Monitor ranges (GTF): 50-60Hz V, 30-80kHz H, max dotclock 170MHz Monitor name: HP 21kd Serial number: ... Checksum: 0xd2 (valid) One or more of the timings is out of range of the Monitor Ranges: Vertical Freq: 60 - 70 Hz Horizontal Freq: 31469 - 67500 Hz Maximum Clock: 148.500 MHz