edid-decode "/sys/class/drm/card0-DVI-I-1/edid": EDID (hex): 00ffffffffffff00220eaf3601010101 321e0103803c22782a9405a952449722 195054a10800d1c0a9c081c0b3009500 810081800101023a801871382d40582c 450056502100001e000000fd00323c1e 5011000a202020202020000000fc0048 5020503237762047340a2020000000ff 003143523035303035474d0a20200169 020319b149101f041312110302016703 0c0010000022e2006b023a801871382d 40582c450056502100001e023a80d072 382d40102c458056502100001e000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000063 Extracted contents: header: 00 ff ff ff ff ff ff 00 serial number: ... version: 01 03 basic params: 80 3c 22 78 2a chroma info: 94 05 a9 52 44 97 22 19 50 54 established: a1 08 00 standard: d1 c0 a9 c0 81 c0 b3 00 95 00 81 00 81 80 01 01 descriptor 1: 02 3a 80 18 71 38 2d 40 58 2c 45 00 56 50 21 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 50 32 37 76 20 47 34 0a 20 20 descriptor 4: 00 00 00 ff 00 31 43 52 30 35 30 30 35 47 4d 0a 20 20 extensions: 01 checksum: 69 EDID version: 1.3 Manufacturer: HPN Model 36af Serial Number ... Made in week 50 of 2020 Digital display Maximum image size: 60 cm x 34 cm Gamma: 2.20 DPMS levels: Off RGB color display First detailed timing is preferred timing Display x,y Chromaticity: Red: 0.6621, 0.3212 Green: 0.2666, 0.5898 Blue: 0.1328, 0.0976 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 1600x900@60Hz 16:9 1280x720@60Hz 16:9 1680x1050@60Hz 16:10 HorFreq: 64700 Hz Clock: 119.000 MHz 1440x900@60Hz 16:10 HorFreq: 55500 Hz Clock: 88.750 MHz 1280x800@60Hz 16:10 1280x1024@60Hz 5:4 HorFreq: 64000 Hz Clock: 108.000 MHz Detailed mode: Clock 148.500 MHz, 598 mm x 336 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 P27v G4 Serial number: ... Has 1 extension blocks Checksum: 0x69 (valid) CTA extension block Extension version: 3 21 bytes of CTA data Video data block VIC 16 1920x1080@60Hz 16:9 HorFreq: 67500 Hz Clock: 148.500 MHz VIC 31 1920x1080@50Hz 16:9 HorFreq: 56250 Hz Clock: 148.500 MHz VIC 4 1280x720@60Hz 16:9 HorFreq: 45000 Hz Clock: 74.250 MHz VIC 19 1280x720@50Hz 16:9 HorFreq: 37500 Hz Clock: 74.250 MHz VIC 18 720x576@50Hz 16:9 HorFreq: 31250 Hz Clock: 27.000 MHz VIC 17 720x576@50Hz 4:3 HorFreq: 31250 Hz Clock: 27.000 MHz VIC 3 720x480@60Hz 16:9 HorFreq: 31469 Hz Clock: 27.000 MHz VIC 2 720x480@60Hz 4:3 HorFreq: 31469 Hz Clock: 27.000 MHz VIC 1 640x480@60Hz 4:3 HorFreq: 31469 Hz Clock: 25.175 MHz Vendor-specific data block, OUI 000c03 (HDMI) Source physical address 1.0.0.0 Maximum TMDS clock: 170MHz Extended tag: Video capability data block YCbCr quantization: No Data (0) RGB quantization: Selectable (via AVI Q) (1) PT scan behaviour: Always Underscanned (2) IT scan behaviour: Always Underscanned (2) CE scan behaviour: Support both over- and underscan (3) Underscans PC formats by default Supports YCbCr 4:4:4 Supports YCbCr 4:2:2 1 native detailed modes Detailed mode: Clock 148.500 MHz, 598 mm x 336 mm 1920 2008 2052 2200 hborder 0 1080 1084 1089 1125 vborder 0 +hsync +vsync VertFreq: 60 Hz, HorFreq: 67500 Hz Detailed mode: Clock 148.500 MHz, 598 mm x 336 mm 1920 2448 2492 2640 hborder 0 1080 1084 1089 1125 vborder 0 +hsync +vsync VertFreq: 50 Hz, HorFreq: 56250 Hz Checksum: 0x63 (valid) One or more of the timings is out of range of the Monitor Ranges: Vertical Freq: 50 - 70 Hz Horizontal Freq: 31250 - 67500 Hz Maximum Clock: 148.500 MHz EDID block does not conform at all! Both the serial number ... edid-decode "/sys/class/drm/card4-eDP-1/edid": EDID (hex): 00ffffffffffff000dae291500000000 231e0104a522137802ee95a3544c9926 0f505400000001010101010101010101 010101010101363680a0703820405036 680058c11000001a363680a070383641 5036680058c11000001a000000fe004b 52315630803135364843450a00000000 00024101a8001000000a010a202000f1 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: ee 95 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: 36 36 80 a0 70 38 20 40 50 36 68 00 58 c1 10 00 00 1a descriptor 2: 36 36 80 a0 70 38 36 41 50 36 68 00 58 c1 10 00 00 1a descriptor 3: 00 00 00 fe 00 4b 52 31 56 30 80 31 35 36 48 43 45 0a descriptor 4: 00 00 00 00 00 02 41 01 a8 00 10 00 00 0a 01 0a 20 20 extensions: 00 checksum: f1 EDID version: 1.4 Manufacturer: CMN Model 1529 Serial Number ... Made in week 35 of 2020 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, 0.3300 Green: 0.2998, 0.5996 Blue: 0.1503, 0.0595 White: 0.3134, 0.3291 Established timings supported: Standard timings supported: Detailed mode: Clock 138.780 MHz, 344 mm x 193 mm 1920 2000 2054 2080 hborder 0 1080 1086 1094 1112 vborder 0 +hsync -vsync VertFreq: 60 Hz, HorFreq: 66721 Hz Detailed mode: Clock 138.780 MHz, 344 mm x 193 mm 1920 2000 2054 2080 hborder 0 1080 1086 1094 1390 vborder 0 +hsync -vsync VertFreq: 48 Hz, HorFreq: 66721 Hz ASCII string: KR1V0 Manufacturer-specified data, tag 0 Checksum: 0xf1 (valid) EDID block does NOT conform to EDID 1.4! Missing name descriptor Missing monitor ranges Detailed block string not properly terminated