edid-decode "/sys/class/drm/card1-DP-3/edid": EDID (hex): 00ffffffffffff004c2d2c0d4b385030 2e19010380341d782a5295a556549d25 0e5054bb8c00b30081c0810081809500 a9c001010101023a801871382d40582c 450009252100001e000000fd0032481e 5111000a202020202020000000fc0043 3234463339300a2020202020000000ff 0048544e4a3430303032340a20200170 02031af14690041f1312032309070783 01000066030c00100080011d00bc52d0 1e20b828554009252100001e8c0ad090 204031200c4055000925210000188c0a d08a20e02d10103e9600092521000018 00000000000000000000000000000000 00000000000000000000000000000000 000000000000000000000000000000c9 Extracted contents: header: 00 ff ff ff ff ff ff 00 serial number: ... version: 01 03 basic params: 80 34 1d 78 2a chroma info: 52 95 a5 56 54 9d 25 0e 50 54 established: bb 8c 00 standard: b3 00 81 c0 81 00 81 80 95 00 a9 c0 01 01 01 01 descriptor 1: 02 3a 80 18 71 38 2d 40 58 2c 45 00 09 25 21 00 00 1e descriptor 2: 00 00 00 fd 00 32 48 1e 51 11 00 0a 20 20 20 20 20 20 descriptor 3: 00 00 00 fc 00 43 32 34 46 33 39 30 0a 20 20 20 20 20 descriptor 4: 00 00 00 ff 00 48 54 4e 4a 34 30 30 30 32 34 0a 20 20 extensions: 01 checksum: 70 EDID version: 1.3 Manufacturer: SAM Model d2c Serial Number ... Made in week 46 of 2015 Digital display Maximum image size: 52 cm x 29 cm Gamma: 2.20 DPMS levels: Off RGB color display First detailed timing is preferred timing Display x,y Chromaticity: Red: 0.6455, 0.3369 Green: 0.3281, 0.6152 Blue: 0.1464, 0.0556 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 640x480@67Hz 4:3 HorFreq: 35000 Hz Clock: 30.240 MHz 640x480@72Hz 4:3 HorFreq: 37900 Hz Clock: 31.500 MHz 800x600@56Hz 4:3 HorFreq: 35200 Hz Clock: 36.000 MHz 800x600@60Hz 4:3 HorFreq: 37900 Hz Clock: 40.000 MHz 800x600@72Hz 4:3 HorFreq: 48100 Hz Clock: 50.000 MHz 1024x768@60Hz 4:3 HorFreq: 48400 Hz Clock: 65.000 MHz 1024x768@70Hz 4:3 HorFreq: 56500 Hz Clock: 75.000 MHz Standard timings supported: 1680x1050@60Hz 16:10 HorFreq: 64700 Hz Clock: 119.000 MHz 1280x720@60Hz 16:9 1280x800@60Hz 16:10 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 Detailed mode: Clock 148.500 MHz, 521 mm x 293 mm 1920 2008 2052 2200 hborder 0 1080 1084 1089 1125 vborder 0 +hsync +vsync VertFreq: 60 Hz, HorFreq: 67500 Hz Monitor ranges (GTF): 50-72Hz V, 30-81kHz H, max dotclock 170MHz Monitor name: C24F390 Serial number: ... Has 1 extension blocks Checksum: 0x70 (valid) CTA extension block Extension version: 3 22 bytes of CTA data Video data block VIC 16 1920x1080@60Hz 16:9 (native) HorFreq: 67500 Hz Clock: 148.500 MHz VIC 4 1280x720@60Hz 16:9 HorFreq: 45000 Hz Clock: 74.250 MHz VIC 31 1920x1080@50Hz 16:9 HorFreq: 56250 Hz Clock: 148.500 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 3 720x480@60Hz 16:9 HorFreq: 31469 Hz Clock: 27.000 MHz Audio data block Linear PCM, max channels 2 Supported sample rates (kHz): 48 44.1 32 Supported sample sizes (bits): 24 20 16 Speaker allocation data block Speaker map: FL/FR - Front Left/Right Vendor-specific data block, OUI 000c03 (HDMI) Source physical address 1.0.0.0 Supports_AI Underscans PC formats by default Basic audio support Supports YCbCr 4:4:4 Supports YCbCr 4:2:2 1 native detailed modes Detailed mode: Clock 74.250 MHz, 521 mm x 293 mm 1280 1720 1760 1980 hborder 0 720 725 730 750 vborder 0 +hsync +vsync VertFreq: 50 Hz, HorFreq: 37500 Hz Detailed mode: Clock 27.000 MHz, 521 mm x 293 mm 720 732 796 864 hborder 0 576 581 586 625 vborder 0 -hsync -vsync VertFreq: 50 Hz, HorFreq: 31250 Hz Detailed mode: Clock 27.000 MHz, 521 mm x 293 mm 720 736 798 858 hborder 0 480 489 495 525 vborder 0 -hsync -vsync VertFreq: 59 Hz, HorFreq: 31468 Hz Checksum: 0xc9 (valid) EDID block does not conform at all! Both the serial number ... edid-decode "/sys/class/drm/card1-HDMI-A-3/edid": EDID (hex): 00ffffffffffff00220ea83600000000 1f1e010380301b782a31d5a55852a127 105054a10800d1c0a9c081c0b3009500 810081800101023a801871382d40582c 4500dd0c1100001e000000fd00323c1e 5011000a202020202020000000fc0048 50205632320a202020202020000000ff 00434e34303331305653590a2020013d 020319b148101f04130302121168030c 001000002200e2006b023a801871382d 40582c4500dd0c1100001e023a80d072 382d40102c4580dd0c1100001e011d00 7251d01e206e285500dd0c1100001e01 1d00bc52d01e20b8285540dd0c110000 1e8c0ad08a20e02d10103e9600dd0c11 00001800000000000000000000000022 Extracted contents: header: 00 ff ff ff ff ff ff 00 serial number: ... version: 01 03 basic params: 80 30 1b 78 2a chroma info: 31 d5 a5 58 52 a1 27 10 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 dd 0c 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 56 32 32 0a 20 20 20 20 20 20 descriptor 4: 00 00 00 ff 00 43 4e 34 30 33 31 30 56 53 59 0a 20 20 extensions: 01 checksum: 3d EDID version: 1.3 Manufacturer: HPN Model 36a8 Serial Number ... Made in week 31 of 2020 Digital display Maximum image size: 48 cm x 27 cm Gamma: 2.20 DPMS levels: Off RGB color display First detailed timing is preferred timing Display x,y Chromaticity: Red: 0.6445, 0.3466 Green: 0.3203, 0.6298 Blue: 0.1552, 0.0634 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, 477 mm x 268 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 V22 Serial number: ... Has 1 extension blocks Checksum: 0x3d (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 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 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 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, 477 mm x 268 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, 477 mm x 268 mm 1920 2448 2492 2640 hborder 0 1080 1084 1089 1125 vborder 0 +hsync +vsync VertFreq: 50 Hz, HorFreq: 56250 Hz Detailed mode: Clock 74.250 MHz, 477 mm x 268 mm 1280 1390 1430 1650 hborder 0 720 725 730 750 vborder 0 +hsync +vsync VertFreq: 60 Hz, HorFreq: 45000 Hz Detailed mode: Clock 74.250 MHz, 477 mm x 268 mm 1280 1720 1760 1980 hborder 0 720 725 730 750 vborder 0 +hsync +vsync VertFreq: 50 Hz, HorFreq: 37500 Hz Detailed mode: Clock 27.000 MHz, 477 mm x 268 mm 720 736 798 858 hborder 0 480 489 495 525 vborder 0 -hsync -vsync VertFreq: 59 Hz, HorFreq: 31468 Hz Checksum: 0x22 (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