sudo apt-get install edid-decode read-edid @TaG: HtC HdMi ViBe WayLand ==== ok ==== ==== ok ==== HDMI-1 connected primary 2160x1200+0+0 (0x8cb) normal (normal left inverted right x axis y axis) 122mm x 68mm Identifier: 0x63 Timestamp: 427888545 Subpixel: unknown Gamma: 1.0:1.0:1.0 Brightness: 1.0 Clones: CRTC: 0 CRTCs: 1 0 2 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: EDID: 00ffffffffffff0022d201aa00000000 ff1a010380000078029a8caa5539b723 0e4c5200000001010101010101010101 0101010101010474706a80b008412814 c2047a44000000180474706a80b00841 2814c2047a4400000018000000fc0048 54432d564956450a20202020000000fd 00147801ff1e010a20202020202001d7 02031540420102230907018301000065 030c0010000474706a80b008412814c2 047a44000000180474706a80b0084128 14c2047a44000000180474706a80b008 412814c2047a44000000180474706a80 b008412814c2047a4400000018000000 00000000000000000000000000000000 00000000000000000000000000000099 aspect ratio: Automatic supported: Automatic, 4:3, 16:9 Broadcast RGB: Automatic supported: Automatic, Full, Limited 16:235 audio: auto supported: force-dvi, off, auto, on non-desktop: 0 range: (0, 1) link-status: Good supported: Good, Bad 2160x1200 (0x8cb) 297.000MHz -HSync -VSync *current +preferred h: width 2160 start 2200 end 2220 total 2266 skew 0 clock 131.07KHz v: height 1200 start 1228 end 1230 total 1464 clock 89.53Hz 720x480 (0x8a5) 27.027MHz -HSync -VSync h: width 720 start 736 end 798 total 858 skew 0 clock 31.50KHz v: height 480 start 489 end 495 total 525 clock 60.00Hz 720x480 (0x8a6) 27.000MHz -HSync -VSync h: width 720 start 736 end 798 total 858 skew 0 clock 31.47KHz v: height 480 start 489 end 495 total 525 clock 59.94Hz 640x480 (0x8a9) 25.200MHz -HSync -VSync h: width 640 start 656 end 752 total 800 skew 0 clock 31.50KHz v: height 480 start 490 end 492 total 525 clock 60.00Hz 640x480 (0xa7) 25.175MHz -HSync -VSync h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz v: height 480 start 490 end 492 total 525 clock 59.94Hz DP-1 disconnected (normal left inverted right x axis y axis) Identifier: 0x64 Timestamp: 427888545 Subpixel: unknown Clones: HDMI-2 CRTCs: 1 0 2 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: Broadcast RGB: Automatic supported: Automatic, Full, Limited 16:235 audio: auto supported: force-dvi, off, auto, on non-desktop: 0 range: (0, 1) link-status: Good supported: Good, Bad HDMI-2 disconnected (normal left inverted right x axis y axis) Identifier: 0x65 Timestamp: 427888545 Subpixel: unknown Clones: DP-1 CRTCs: 1 0 2 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: aspect ratio: Automatic supported: Automatic, 4:3, 16:9 Broadcast RGB: Automatic supported: Automatic, Full, Limited 16:235 audio: auto supported: force-dvi, off, auto, on non-desktop: 0 range: (0, 1) link-status: Good supported: Good, Bad sudo apt-get install read-edid sudo /usr/bin/get-edid | xxd This is read-edid version 3.0.2. Prepare for some fun. Attempting to use i2c interface No EDID on bus 0 No EDID on bus 1 No EDID on bus 3 No EDID on bus 4 No EDID on bus 5 No EDID on bus 7 No EDID on bus 8 2 potential busses found: 2 6 Will scan through until the first EDID is found. Pass a bus number as an option to this program to go only for that one. 256-byte EDID successfully retrieved from i2c bus 2 Looks like i2c was successful. Have a good day. 00000000: 00ff ffff ffff ff00 22d2 01aa 0000 0000 ........"....... 00000010: ff1a 0103 8000 0078 029a 8caa 5539 b723 .......x....U9.# 00000020: 0e4c 5200 0000 0101 0101 0101 0101 0101 .LR............. 00000030: 0101 0101 0101 0474 706a 80b0 0841 2814 .......tpj...A(. 00000040: c204 7a44 0000 0018 0474 706a 80b0 0841 ..zD.....tpj...A 00000050: 2814 c204 7a44 0000 0018 0000 00fc 0048 (...zD.........H 00000060: 5443 2d56 4956 450a 2020 2020 0000 00fd TC-VIVE. .... 00000070: 0014 7801 ff1e 010a 2020 2020 2020 01d7 ..x..... .. 00000080: 0203 1540 4201 0223 0907 0183 0100 0065 ...@B..#.......e 00000090: 030c 0010 0004 7470 6a80 b008 4128 14c2 ......tpj...A(.. 000000a0: 047a 4400 0000 1804 7470 6a80 b008 4128 .zD.....tpj...A( 000000b0: 14c2 047a 4400 0000 1804 7470 6a80 b008 ...zD.....tpj... 000000c0: 4128 14c2 047a 4400 0000 1804 7470 6a80 A(...zD.....tpj. 000000d0: b008 4128 14c2 047a 4400 0000 1800 0000 ..A(...zD....... 000000e0: 0000 0000 0000 0000 0000 0000 0000 0000 ................ 000000f0: 0000 0000 0000 0000 0000 0000 0000 0099 ................ sudo /usr/bin/get-edid | /usr/bin/parse-edid Section "Monitor" Identifier "HTC-VIVE" ModelName "HTC-VIVE" VendorName "HVR" # Monitor Model Year: 2016 # EDID version 1.3 # Digital Display # Display Physical Size not given. Normal for projectors. Gamma 2.20 Option "DPMS" "false" Horizsync 1-255 VertRefresh 20-120 # Maximum pixel clock is 300MHz #Extension block found. Parsing... Modeline "Mode 2" 25.200 640 656 752 800 480 490 492 525 -hsync -vsync Modeline "Mode 0" 297.00 2160 2200 2220 2266 1200 1228 1230 1464 -hsync -vsync Modeline "Mode 1" 297.00 2160 2200 2220 2266 1200 1228 1230 1464 -hsync -vsync Modeline "Mode 3" 27.027 720 736 798 858 480 489 495 525 -hsync -vsync Modeline "Mode 4" 297.00 2160 2200 2220 2266 1200 1228 1230 1464 -hsync -vsync Modeline "Mode 5" 297.00 2160 2200 2220 2266 1200 1228 1230 1464 -hsync -vsync Modeline "Mode 6" 297.00 2160 2200 2220 2266 1200 1228 1230 1464 -hsync -vsync Modeline "Mode 7" 297.00 2160 2200 2220 2266 1200 1228 1230 1464 -hsync -vsync Option "PreferredMode" "Mode 2" EndSection ==== ko ==== lshw -C display WARNING: you should run this program as super-user. *-display description: 3D controller product: GM108M [GeForce 920MX] vendor: NVIDIA Corporation physical id: 0 bus info: pci@0000:01:00.0 version: a2 width: 64 bits clock: 33MHz capabilities: bus_master cap_list rom configuration: driver=nouveau latency=0 resources: irq:125 memory:ee000000-eeffffff memory:d0000000-dfffffff memory:e0000000-e1ffffff ioport:e000(size=128) memory:ef000000-ef07ffff *-display description: VGA compatible controller product: HD Graphics 530 vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 06 width: 64 bits clock: 33MHz capabilities: vga_controller bus_master cap_list rom configuration: driver=i915 latency=0 resources: irq:126 memory:ed000000-edffffff memory:c0000000-cfffffff ioport:f000(size=64) memory:c0000-dffff get-edid | parse-edid This is read-edid version 3.0.2. Prepare for some fun. Attempting to use i2c interface Looks like no busses have an EDID. Sorry! Attempting to use the classical VBE interface Performing real mode VBE call Interrupt 0x10 ax=0x4f00 bx=0x0 cx=0x0 Function unsupported Call failed VBE version 0 VBE string at 0x0 "O�" VBE/DDC service about to be called Report DDC capabilities Performing real mode VBE call Interrupt 0x10 ax=0x4f15 bx=0x0 cx=0x0 Function unsupported Call failed Reading next EDID block VBE/DDC service about to be called Read EDID Performing real mode VBE call Interrupt 0x10 ax=0x4f15 bx=0x1 cx=0x0 Function unsupported Call failed The EDID data should not be trusted as the VBE call failed Error: output block unchanged I'm sorry nothing was successful. Maybe try some other arguments if you played with them, or send an email to Matthew Kern . Partial Read... Try again * https://a3nm.net/blog/xrandr.html