edid-decode "/sys/class/drm/card0-VGA-1/edid": EDID (hex): 00ffffffffffff0010ac0aa054384243 1f0e010368221b78ea04a5a3584f9524 195054a54b00714f8180010101010101 010101010101302a009851002a403070 1300520e1100001e000000ff004a3138 3036343755434238540a000000fc0044 454c4c204531373246500a20000000fd 00384c1f500e000a20202020202000ab Extracted contents: header: 00 ff ff ff ff ff ff 00 serial number: ... version: 01 03 basic params: 68 22 1b 78 ea chroma info: 04 a5 a3 58 4f 95 24 19 50 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 52 0e 11 00 00 1e descriptor 2: 00 00 00 ff 00 4a 31 38 30 36 34 37 55 43 42 38 54 0a descriptor 3: 00 00 00 fc 00 44 45 4c 4c 20 45 31 37 32 46 50 0a 20 descriptor 4: 00 00 00 fd 00 38 4c 1f 50 0e 00 0a 20 20 20 20 20 20 extensions: 00 checksum: ab EDID version: 1.3 Manufacturer: DEL Model a00a Serial Number ... Analog display, Input voltage level: 0.7/0.7 V Sync: Separate Maximum image size: 34 cm x 27 cm Gamma: 2.20 DPMS levels: Standby Suspend Off RGB color display First detailed timing is preferred timing Display x,y Chromaticity: Red: 0.6367, 0.3437 Green: 0.3095, 0.5820 Blue: 0.1425, 0.0996 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 Detailed mode: Clock 108.000 MHz, 338 mm x 270 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 E172FP Monitor ranges (GTF): 56-76Hz V, 31-80kHz H, max dotclock 140MHz Checksum: 0xab (valid) EDID block does not conform at all! Bad year of manufacture