edid-decode "/sys/class/drm/card0-VGA-1/edid": EDID (hex): 00ffffffffffff000472b0068b2f0000 050f010368221b786ece45a6524c9927 1c5054afcf0081800101010101010101 010101010101302a009851002a403070 1300520e1100001e000000fd00324b1e 530e000a202020202020000000fc0041 4c313731350a202020202020000000fe 00414345520a20202020202020200023 Extracted contents: header: 00 ff ff ff ff ff ff 00 serial number: ... version: 01 03 basic params: 68 22 1b 78 6e chroma info: ce 45 a6 52 4c 99 27 1c 50 54 established: af cf 00 standard: 81 80 01 01 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 fd 00 32 4b 1e 53 0e 00 0a 20 20 20 20 20 20 descriptor 3: 00 00 00 fc 00 41 4c 31 37 31 35 0a 20 20 20 20 20 20 descriptor 4: 00 00 00 fe 00 41 43 45 52 0a 20 20 20 20 20 20 20 20 extensions: 00 checksum: 23 EDID version: 1.3 Manufacturer: ACR Model 6b0 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: Suspend Off RGB color display Default (sRGB) color space is primary color space First detailed timing is preferred timing Display x,y Chromaticity: Red: 0.6513, 0.3203 Green: 0.2998, 0.5996 Blue: 0.1533, 0.1093 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@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 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 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 Monitor ranges (GTF): 50-75Hz V, 30-83kHz H, max dotclock 140MHz Monitor name: AL1715 ASCII string: ACER Checksum: 0x23 (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