On Sun, Jan 8, 2017 at 5:01 PM, Nathaniel Russell <naterussel...@gmail.com> wrote: > Any help figuring this out would be greatly appreciated. > Linux version 4.8.15 (root@reddog) (gcc version 5.4.0 (GCC) ) #1 Sun Dec 18 > 22:48:37 CST 2016 > > > > > pci 0000:00:00.0: Intel G33 Chipset > [ 7.173121] pci 0000:00:00.0: detected gtt size: 524288K total, 262144K > mappable > [ 7.173402] pci 0000:00:00.0: detected 8192K stolen memory > [ 7.173568] [drm] Memory usable by graphics device = 512M > [ 7.173651] [drm] Replacing VGA console driver > [ 7.174505] Console: switching to colour dummy device 80x25 > [ 7.183053] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). > [ 7.183068] [drm] Driver supports precise vblank timestamp query. > [ 7.183330] vgaarb: device changed decodes: > PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem > [ 7.187074] [drm] RC6 disabled, disabling runtime PM support > [ 7.187101] [drm] initialized overlay support > [ 7.187449] [drm] Initialized i915 1.6.0 20160711 for 0000:00:02.0 on > minor 0 > [ 7.253043] [drm:drm_edid_block_valid [drm]] *ERROR* EDID checksum is > invalid, remainder is 62 > [ 7.253061] Raw EDID: > [ 7.253068] 00 ff ff ff ff ff ff 00 10 ac 0b a0 53 4b 55 33 > [ 7.253076] 2c 0e 01 03 68 22 1b 78 ee ca f6 a3 57 47 9e 23 > [ 7.253084] 11 4f 54 a5 4b 00 71 4f 81 80 01 01 01 01 01 01 > [ 7.253091] 01 01 01 01 01 01 30 2a 00 98 51 00 2a 40 30 70 > [ 7.253098] 13 00 52 0e 11 00 00 1e 00 00 00 fd 00 38 4b 1f > [ 7.253106] 50 0e 00 0a 20 20 20 20 20 20 00 00 00 ff 00 44 > [ 7.253113] 35 34 32 38 34 41 55 33 55 4b 53 0a 00 00 00 fc > [ 7.253121] 00 44 45 4c 4c 20 45 31 37 33 46 50 0a 20 00 98 > [ 7.268019] usb 1-4.3: new high-speed USB device number 5 using ehci-pci > [ 7.287049] [drm:drm_edid_block_valid [drm]] *ERROR* EDID checksum is > invalid, remainder is 62 > [ 7.287067] Raw EDID: > [ 7.287074] 00 ff ff ff ff ff ff 00 10 ac 0b a0 53 4b 55 33 > [ 7.287082] 2c 0e 01 03 68 22 1b 78 ee ca f6 a3 57 47 9e 23 > [ 7.287090] 11 4f 54 a5 4b 00 71 4f 81 80 01 01 01 01 01 01 > [ 7.287097] 01 01 01 01 01 01 30 2a 00 98 51 00 2a 40 30 70 > [ 7.287105] 13 00 52 0e 11 00 00 1e 00 00 00 fd 00 38 4b 1f > [ 7.287112] 50 0e 00 0a 20 20 20 20 20 20 00 00 00 ff 00 44 > [ 7.287120] 35 34 32 38 34 41 55 33 55 4b 53 0a 00 00 00 fc > [ 7.287127] 00 44 45 4c 4c 20 45 31 37 33 46 50 0a 20 00 98 > [ 7.305052] firewire_ohci 0000:02:00.0: added OHCI v1.0 device as card 0, > 8 IR + 8 IT contexts, quirks 0x0 > [ 7.321041] [drm:drm_edid_block_valid [drm]] *ERROR* EDID checksum is > invalid, remainder is 62 > [ 7.321059] Raw EDID: > [ 7.321066] 00 ff ff ff ff ff ff 00 10 ac 0b a0 53 4b 55 33 > [ 7.321074] 2c 0e 01 03 68 22 1b 78 ee ca f6 a3 57 47 9e 23 > [ 7.321082] 11 4f 54 a5 4b 00 71 4f 81 80 01 01 01 01 01 01 > [ 7.321089] 01 01 01 01 01 01 30 2a 00 98 51 00 2a 40 30 70 > [ 7.321097] 13 00 52 0e 11 00 00 1e 00 00 00 fd 00 38 4b 1f > [ 7.321104] 50 0e 00 0a 20 20 20 20 20 20 00 00 00 ff 00 44 > [ 7.321112] 35 34 32 38 34 41 55 33 55 4b 53 0a 00 00 00 fc > [ 7.321119] 00 44 45 4c 4c 20 45 31 37 33 46 50 0a 20 00 98 > [ 7.335820] i801_smbus 0000:00:1f.3: SMBus using PCI interrupt > [ 7.349149] usb 1-4.3: New USB device found, idVendor=14cd, > idProduct=125d > [ 7.349165] usb 1-4.3: New USB device strings: Mfr=1, Product=3, > SerialNumber=2 > [ 7.349178] usb 1-4.3: Product: Mass Storage Device > [ 7.349186] usb 1-4.3: Manufacturer: Generic > [ 7.349193] usb 1-4.3: SerialNumber: 125D20140310 > [ 7.356045] [drm:drm_edid_block_valid [drm]] *ERROR* EDID checksum is > invalid, remainder is 62 > [ 7.356063] Raw EDID: > [ 7.356070] 00 ff ff ff ff ff ff 00 10 ac 0b a0 53 4b 55 33 > [ 7.356078] 2c 0e 01 03 68 22 1b 78 ee ca f6 a3 57 47 9e 23 > [ 7.356086] 11 4f 54 a5 4b 00 71 4f 81 80 01 01 01 01 01 01 > [ 7.356093] 01 01 01 01 01 01 30 2a 00 98 51 00 2a 40 30 70 > [ 7.356101] 13 00 52 0e 11 00 00 1e 00 00 00 fd 00 38 4b 1f > [ 7.356108] 50 0e 00 0a 20 20 20 20 20 20 00 00 00 ff 00 44 > [ 7.356115] 35 34 32 38 34 41 55 33 55 4b 53 0a 00 00 00 fc > [ 7.356123] 00 44 45 4c 4c 20 45 31 37 33 46 50 0a 20 00 98 > [ 7.356134] i915 0000:00:02.0: VGA-1: EDID block 0 invalid.
What's the question exactly? Your monitor is returning an EDID with an invalid checksum, and the kernel is notifying you about this. The full edid-decode output looks like: $ ./edid-decode < tmp.edid Extracted contents: header: 00 ff ff ff ff ff ff 00 serial number: 10 ac 0b a0 53 4b 55 33 2c 0e version: 01 03 basic params: 68 22 1b 78 ee chroma info: ca f6 a3 57 47 9e 23 11 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 52 0e 11 00 00 1e descriptor 2: 00 00 00 fd 00 38 4b 1f 50 0e 00 0a 20 20 20 20 20 20 descriptor 3: 00 00 00 ff 00 44 35 34 32 38 34 41 55 33 55 4b 53 0a descriptor 4: 00 00 00 fc 00 44 45 4c 4c 20 45 31 37 33 46 50 0a 20 extensions: 00 checksum: 98 Manufacturer: DEL Model a00b Serial Number 861227859 EDID version: 1.3 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 Default (sRGB) color space is primary color space First detailed timing is preferred timing Established timings supported: 720x400@70Hz 640x480@60Hz 640x480@75Hz 800x600@60Hz 800x600@75Hz 1024x768@60Hz 1024x768@75Hz 1280x1024@75Hz Standard timings supported: 1152x864@75Hz 1280x1024@60Hz 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 Monitor ranges (GTF): 56-75Hz V, 31-80kHz H, max dotclock 140MHz Serial number: D54284AU3UKS Monitor name: DELL Checksum: 0x98 (should be 0x5a) EDID block does NOT conform to EDID 1.3! Detailed block string not properly terminated EDID block does not conform at all! Block has broken checksum Bad year of manufacture