edid-decode "/sys/class/drm/card0-VGA-1/edid": EDID (hex): 00ffffffffffff000e11501430323848 130d01036e241d78ea6ee0a1594c9423 195257bfef8081800101010101010101 010101010101bc34009851002a401090 130068221100001e000000fd00384c1e 520e000a202020202020000000ff0048 5533313950483832300a2020000000fc 00434f4d50415120313832350a20001e Extracted contents: header: 00 ff ff ff ff ff ff 00 serial number: ... version: 01 03 basic params: 6e 24 1d 78 ea chroma info: 6e e0 a1 59 4c 94 23 19 52 57 established: bf ef 80 standard: 81 80 01 01 01 01 01 01 01 01 01 01 01 01 01 01 descriptor 1: bc 34 00 98 51 00 2a 40 10 90 13 00 68 22 11 00 00 1e descriptor 2: 00 00 00 fd 00 38 4c 1e 52 0e 00 0a 20 20 20 20 20 20 descriptor 3: 00 00 00 ff 00 48 55 33 31 39 50 48 38 32 30 0a 20 20 descriptor 4: 00 00 00 fc 00 43 4f 4d 50 41 51 20 31 38 32 35 0a 20 extensions: 00 checksum: 1e EDID version: 1.3 Manufacturer: CPQ Model 1450 Serial Number ... Analog display, Input voltage level: 0.7/0.7 V Sync: Separate Composite SyncOnGreen Maximum image size: 36 cm x 29 cm Gamma: 2.20 DPMS levels: Standby Suspend Off RGB color display First detailed timing is preferred timing Display x,y Chromaticity: Red: 0.6298, 0.3496 Green: 0.2998, 0.5800 Blue: 0.1396, 0.0996 White: 0.3203, 0.3398 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 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 135.000 MHz, 360 mm x 290 mm 1280 1296 1440 1688 hborder 0 1024 1025 1028 1066 vborder 0 +hsync +vsync VertFreq: 75 Hz, HorFreq: 79976 Hz Monitor ranges (GTF): 56-76Hz V, 30-82kHz H, max dotclock 140MHz Serial number: ... Monitor name: COMPAQ 1825 Checksum: 0x1e (valid) EDID block does not conform at all! Bad year of manufacture