edid-decode "/sys/class/drm/card1-DVI-D-1/edid": EDID (hex): 00ffffffffffff0010ac014050454142 0f0e010380261f78ee6f86a25a4d9424 1a4f54a54b00714f8180010101010101 010101010101302a009851002a403070 1300782d1100001e000000ff00345932 3831343436424145500a000000fc0044 454c4c203139303146500a20000000fd 00384c1e500e000a202020202020008b Extracted contents: header: 00 ff ff ff ff ff ff 00 serial number: ... version: 01 03 basic params: 80 26 1f 78 ee chroma info: 6f 86 a2 5a 4d 94 24 1a 4f 54 established: a5 4b 00 standard: 71 4f 81 80 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: 00 00 00 ff 00 34 59 32 38 31 34 34 36 42 41 45 50 0a descriptor 3: 00 00 00 fc 00 44 45 4c 4c 20 31 39 30 31 46 50 0a 20 descriptor 4: 00 00 00 fd 00 38 4c 1e 50 0e 00 0a 20 20 20 20 20 20 extensions: 00 checksum: 8b EDID version: 1.3 Manufacturer: DEL Model 4001 Serial Number ... Digital display Maximum image size: 38 cm x 31 cm Gamma: 2.20 DPMS levels: Standby Suspend Off RGB color display Default (sRGB) color space is primary color space First detailed timing is preferred timing Display x,y Chromaticity: Red: 0.6337, 0.3535 Green: 0.3037, 0.5810 Blue: 0.1425, 0.1015 White: 0.3095, 0.3300 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 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 Serial number: ... Monitor name: DELL 1901FP Monitor ranges (GTF): 56-76Hz V, 30-80kHz H, max dotclock 140MHz Checksum: 0x8b (valid) EDID block does NOT conform to EDID 1.3! sRGB is signaled, but the chromaticities do not match EDID block does not conform at all! Bad year of manufacture