edid-decode "/sys/class/drm/card0-DP-1/edid": EDID (hex): 00ffffffffffff0021310550b1f23101 170f0104a5251e7822ee95a3544c9926 0f5054a7ef8081800101010101010101 010101010101302a009851002a403070 1300782d1100001e100bd0b420903110 126cd200782d1100001c000000fd0038 4b1f510e000a202020202020000000fc 00423930410a202020202020202000e0 Extracted contents: header: 00 ff ff ff ff ff ff 00 serial number: ... version: 01 04 basic params: a5 25 1e 78 22 chroma info: ee 95 a3 54 4c 99 26 0f 50 54 established: a7 ef 80 standard: 81 80 01 01 01 01 01 01 01 01 01 01 01 01 01 01 descriptor 1: 30 2a 00 98 51 00 2a 40 30 70 13 00 78 2d 11 00 00 1e descriptor 2: 10 0b d0 b4 20 90 31 10 12 6c d2 00 78 2d 11 00 00 1c descriptor 3: 00 00 00 fd 00 38 4b 1f 51 0e 00 0a 20 20 20 20 20 20 descriptor 4: 00 00 00 fc 00 42 39 30 41 0a 20 20 20 20 20 20 20 20 extensions: 00 checksum: e0 EDID version: 1.4 Manufacturer: HIQ Model 5005 Serial Number ... Digital display 8 bits per primary color channel DisplayPort interface Maximum image size: 37 cm x 30 cm Gamma: 2.20 DPMS levels: Off 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: 720x400@70Hz 9:5 HorFreq: 31469 Hz Clock: 28.320 MHz 640x480@60Hz 4:3 HorFreq: 31469 Hz Clock: 25.175 MHz 640x480@75Hz 4:3 HorFreq: 37500 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 800x600@75Hz 4:3 HorFreq: 46900 Hz Clock: 49.500 MHz 832x624@75Hz 4:3 HorFreq: 49726 Hz Clock: 57.284 MHz 1024x768@60Hz 4:3 HorFreq: 48400 Hz Clock: 65.000 MHz 1024x768@70Hz 4:3 HorFreq: 56500 Hz Clock: 75.000 MHz 1024x768@75Hz 4:3 HorFreq: 60000 Hz Clock: 78.750 MHz 1280x1024@75Hz 5:4 HorFreq: 80000 Hz Clock: 135.000 MHz 1152x870@75Hz 192:145 HorFreq: 67500 Hz Clock: 108.000 MHz Standard timings supported: 1280x1024@60Hz 5:4 HorFreq: 64000 Hz Clock: 108.000 MHz Detailed mode: Clock 108.000 MHz, 376 mm x 301 mm 1280 1328 1440 1688 hborder 0 1024 1025 1028 1066 vborder 0 +hsync +vsync VertFreq: 60 Hz, HorFreq: 63981 Hz Detailed mode: Clock 28.320 MHz, 376 mm x 301 mm 720 738 846 900 hborder 0 400 413 415 449 vborder 0 -hsync +vsync VertFreq: 70 Hz, HorFreq: 31466 Hz Monitor ranges (GTF): 56-75Hz V, 31-81kHz H, max dotclock 140MHz Monitor name: B90A Checksum: 0xe0 (valid) EDID block does not conform at all! Bad year of manufacture