edid-decode "/sys/class/drm/card0-DVI-I-1/edid": EDID (hex): 00ffffffffffff004245110015cd5b07 241001036e221b78e859a5a457479c24 155054adcf0001010101010101010101 010101010101302a009851002a401088 3600671f11000038000000fc00503137 31300a20202020202020000000fd003a 4b1e5e0f000a20202020202000000010 003030303030310a2020202020200087 Extracted contents: header: 00 ff ff ff ff ff ff 00 serial number: ... version: 01 03 basic params: 6e 22 1b 78 e8 chroma info: 59 a5 a4 57 47 9c 24 15 50 54 established: ad cf 00 standard: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 descriptor 1: 30 2a 00 98 51 00 2a 40 10 88 36 00 67 1f 11 00 00 38 descriptor 2: 00 00 00 fc 00 50 31 37 31 30 0a 20 20 20 20 20 20 20 descriptor 3: 00 00 00 fd 00 3a 4b 1e 5e 0f 00 0a 20 20 20 20 20 20 descriptor 4: 00 00 00 10 00 30 30 30 30 30 31 0a 20 20 20 20 20 20 extensions: 00 checksum: 87 EDID version: 1.3 Manufacturer: PRE Model 11 Serial Number ... Made in week 36 of 2006 Analog display, Input voltage level: 0.7/0.7 V Sync: Separate Composite SyncOnGreen Maximum image size: 34 cm x 27 cm Gamma: 2.20 DPMS levels: Standby Suspend Off RGB color display Display x,y Chromaticity: Red: 0.6416, 0.3408 Green: 0.2792, 0.6103 Blue: 0.1425, 0.0839 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@72Hz 4:3 HorFreq: 37900 Hz Clock: 31.500 MHz 640x480@75Hz 4:3 HorFreq: 37500 Hz Clock: 31.500 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 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 Standard timings supported: Detailed mode: Clock 108.000 MHz, 359 mm x 287 mm 1280 1296 1432 1688 hborder 0 1024 1027 1033 1066 vborder 0 -hsync -vsync field sequential L/R VertFreq: 60 Hz, HorFreq: 63981 Hz Monitor name: P1710 Monitor ranges (GTF): 58-75Hz V, 30-94kHz H, max dotclock 150MHz Dummy block Checksum: 0x87 (valid) EDID block does NOT conform to EDID 1.3! Missing preferred timing EDID block does not conform at all! Dummy block filled with garbage edid-decode "/sys/class/drm/card0-VGA-1/edid": EDID (hex): 00ffffffffffff005a631b4a01010101 320e010318221b782a5055a25c489a24 115054bfef008180714f010101010101 010101010101302a009851002a403070 1300520e1100001e000000ff00504a48 3034353030333736340a000000fd0038 4b1e520e000a202020202020000000fc 0056453730326d0a20202020202000f6 Extracted contents: header: 00 ff ff ff ff ff ff 00 serial number: ... version: 01 03 basic params: 18 22 1b 78 2a chroma info: 50 55 a2 5c 48 9a 24 11 50 54 established: bf ef 00 standard: 81 80 71 4f 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 50 4a 48 30 34 35 30 30 33 37 36 34 0a descriptor 3: 00 00 00 fd 00 38 4b 1e 52 0e 00 0a 20 20 20 20 20 20 descriptor 4: 00 00 00 fc 00 56 45 37 30 32 6d 0a 20 20 20 20 20 20 extensions: 00 checksum: f6 EDID version: 1.3 Manufacturer: VSC Model 4a1b Serial Number ... Analog display, Input voltage level: 0.7/0.3 V Configurable signal levels Sync: Separate Maximum image size: 34 cm x 27 cm Gamma: 2.20 DPMS levels: Off RGB color display First detailed timing is preferred timing Display x,y Chromaticity: Red: 0.6337, 0.3603 Green: 0.2812, 0.6015 Blue: 0.1416, 0.0673 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@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 Standard timings supported: 1280x1024@60Hz 5:4 HorFreq: 64000 Hz Clock: 108.000 MHz 1152x864@75Hz 4:3 HorFreq: 67500 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 ranges (GTF): 56-75Hz V, 30-82kHz H, max dotclock 140MHz Monitor name: VE702m Checksum: 0xf6 (valid) EDID block does not conform at all! Bad year of manufacture