edid-decode "/sys/class/drm/card0-DP-1/edid": EDID (hex): 00ffffffffffff0010ac23f14c354741 101f0104a53c22783a5015a8544fa527 0e5054a54b00714f8180a9c0d1c00101 0101010101014dd000a0f0703e803020 350055502100001a000000ff00325653 4a5843330a2020202020000000fc0044 454c4c205032373231510a20000000fd 0018560f873c000a20202020202001ab 02031eb15661605f5e5d101f22212004 1312110302010514061516e2006b08e8 0030f2705a80b0588a0055502100001c 565e00a0a0a029503020350055502100 001c023a801871382d40582c45005550 2100001e114400a08000255030203600 55502100001c00000000000000000000 00000000000000000000000000000065 Extracted contents: header: 00 ff ff ff ff ff ff 00 serial number: ... version: 01 04 basic params: a5 3c 22 78 3a chroma info: 50 15 a8 54 4f a5 27 0e 50 54 established: a5 4b 00 standard: 71 4f 81 80 a9 c0 d1 c0 01 01 01 01 01 01 01 01 descriptor 1: 4d d0 00 a0 f0 70 3e 80 30 20 35 00 55 50 21 00 00 1a descriptor 2: 00 00 00 ff 00 32 56 53 4a 58 43 33 0a 20 20 20 20 20 descriptor 3: 00 00 00 fc 00 44 45 4c 4c 20 50 32 37 32 31 51 0a 20 descriptor 4: 00 00 00 fd 00 18 56 0f 87 3c 00 0a 20 20 20 20 20 20 extensions: 01 checksum: ab EDID version: 1.4 Manufacturer: DEL Model f123 Serial Number ... Made in week 16 of 2021 Digital display 8 bits per primary color channel DisplayPort interface Maximum image size: 60 cm x 34 cm Gamma: 2.20 DPMS levels: Off Supported color formats: RGB 4:4:4, YCrCb 4:4:4, YCrCb 4:2:2 First detailed timing includes the native pixel format and preferred refresh rate Display x,y Chromaticity: Red: 0.6572, 0.3291 Green: 0.3085, 0.6445 Blue: 0.1523, 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@75Hz 4:3 HorFreq: 37500 Hz Clock: 31.500 MHz 800x600@60Hz 4:3 HorFreq: 37900 Hz Clock: 40.000 MHz 800x600@75Hz 4:3 HorFreq: 46900 Hz Clock: 49.500 MHz 1024x768@60Hz 4:3 HorFreq: 48400 Hz Clock: 65.000 MHz 1024x768@75Hz 4:3 HorFreq: 60000 Hz Clock: 78.750 MHz 1280x1024@75Hz 5:4 HorFreq: 80000 Hz Clock: 135.000 MHz Standard timings supported: 1152x864@75Hz 4:3 HorFreq: 67500 Hz Clock: 108.000 MHz 1280x1024@60Hz 5:4 HorFreq: 64000 Hz Clock: 108.000 MHz 1600x900@60Hz 16:9 1920x1080@60Hz 16:9 Detailed mode: Clock 533.250 MHz, 597 mm x 336 mm 3840 3888 3920 4000 hborder 0 2160 2163 2168 2222 vborder 0 +hsync -vsync VertFreq: 59 Hz, HorFreq: 133312 Hz Serial number: ... Monitor name: DELL P2721Q Monitor ranges (GTF): 24-86Hz V, 15-135kHz H, max dotclock 600MHz Has 1 extension blocks Checksum: 0xab (valid) CTA extension block Extension version: 3 26 bytes of CTA data Video data block VIC 97 3840x2160@60Hz 16:9 HorFreq: 135000 Hz Clock: 594.000 MHz VIC 96 3840x2160@50Hz 16:9 HorFreq: 112500 Hz Clock: 594.000 MHz VIC 95 3840x2160@30Hz 16:9 HorFreq: 67500 Hz Clock: 297.000 MHz VIC 94 3840x2160@25Hz 16:9 HorFreq: 56250 Hz Clock: 297.000 MHz VIC 93 3840x2160@24Hz 16:9 HorFreq: 54000 Hz Clock: 297.000 MHz 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 34 1920x1080@30Hz 16:9 HorFreq: 33750 Hz Clock: 74.250 MHz VIC 33 1920x1080@25Hz 16:9 HorFreq: 28125 Hz Clock: 74.250 MHz VIC 32 1920x1080@24Hz 16:9 HorFreq: 27000 Hz Clock: 74.250 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 VIC 5 1920x1080i@60Hz 16:9 HorFreq: 33750 Hz Clock: 74.250 MHz VIC 20 1920x1080i@50Hz 16:9 HorFreq: 28125 Hz Clock: 74.250 MHz VIC 6 1440x480i@60Hz 4:3 HorFreq: 15734 Hz Clock: 27.000 MHz VIC 21 1440x576i@50Hz 4:3 HorFreq: 15625 Hz Clock: 27.000 MHz VIC 22 1440x576i@50Hz 16:9 HorFreq: 15625 Hz Clock: 27.000 MHz 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 594.000 MHz, 597 mm x 336 mm 3840 4016 4104 4400 hborder 0 2160 2168 2178 2250 vborder 0 -hsync +vsync VertFreq: 60 Hz, HorFreq: 135000 Hz Detailed mode: Clock 241.500 MHz, 597 mm x 336 mm 2560 2608 2640 2720 hborder 0 1440 1443 1448 1481 vborder 0 -hsync +vsync VertFreq: 59 Hz, HorFreq: 88786 Hz Detailed mode: Clock 148.500 MHz, 597 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 174.250 MHz, 597 mm x 336 mm 2048 2096 2128 2208 hborder 0 1280 1283 1289 1317 vborder 0 -hsync +vsync VertFreq: 59 Hz, HorFreq: 78917 Hz Checksum: 0x65 (valid) EDID block does not conform at all! Both the serial number ... edid-decode "/sys/class/drm/card0-eDP-1/edid": EDID (hex): 00ffffffffffff004d108b1400000000 281b0104a51d11780ede50a3544c9926 0f505400000001010101010101010101 0101010101014dd000a0f0703e803020 350026a510000018a4a600a0f0703e80 3020350026a510000018000000fe0038 58444859824c51313333443100000000 0002410328011200000b010a2020002e Extracted contents: header: 00 ff ff ff ff ff ff 00 serial number: ... version: 01 04 basic params: a5 1d 11 78 0e 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: 4d d0 00 a0 f0 70 3e 80 30 20 35 00 26 a5 10 00 00 18 descriptor 2: a4 a6 00 a0 f0 70 3e 80 30 20 35 00 26 a5 10 00 00 18 descriptor 3: 00 00 00 fe 00 38 58 44 48 59 82 4c 51 31 33 33 44 31 descriptor 4: 00 00 00 00 00 02 41 03 28 01 12 00 00 0b 01 0a 20 20 extensions: 00 checksum: 2e EDID version: 1.4 Manufacturer: SHP Model 148b Serial Number ... Made in week 40 of 2017 Digital display 8 bits per primary color channel DisplayPort interface Maximum image size: 29 cm x 17 cm Gamma: 2.20 Supported color formats: RGB 4:4:4, YCrCb 4:4:4 Default (sRGB) color space is primary color space 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 533.250 MHz, 294 mm x 165 mm 3840 3888 3920 4000 hborder 0 2160 2163 2168 2222 vborder 0 -hsync -vsync VertFreq: 59 Hz, HorFreq: 133312 Hz Detailed mode: Clock 426.600 MHz, 294 mm x 165 mm 3840 3888 3920 4000 hborder 0 2160 2163 2168 2222 vborder 0 -hsync -vsync VertFreq: 47 Hz, HorFreq: 106650 Hz ASCII string: 8XDHY Manufacturer-specified data, tag 0 Checksum: 0x2e (valid) EDID block does NOT conform to EDID 1.4! sRGB is signaled, but the chromaticities do not match Missing name descriptor Missing monitor ranges Detailed block string not properly terminated