The wiki won’t let me use links. So I had to put the ouput of commands directy in code blocks. For readability, the same post (with links) can be found on Reddit. You can
find it on Google : “Manjaro not detecting the correct screen resolution for Display-Port”.
Hi everyone,
I’ve been using Manjaro for a few years on my laptop and wanted to install it on my computer, which is currently running Archlinux.
The issue is that, just like a few months back, I have the same problem with Manjaro as I did with Archlinux: the monitor resolution of my secondary screen won’t fit.
A little bit of context
- I have two identical monitors: ViewSonic VA2432-MHD Adaptive Sync
- One is connected with an HDMI cable (the right monitor), the other one with a Display-Port 1.2 cable (the left monitor)
- My GPU is a XFX Radeon RX 5600 XT
- I already had the issue with Archlinux, which have been fixed a few months back thanks to the Archforum: “Dual-monitor HDMI/DisplayPort with amdgpu : wrong resolution”
What I did to solve it on Archlinux
I created a file in /etc/X11/xorg.conf.d/10-monitor.conf with the following content:
Section "Monitor"
Identifier "HDMI-A-0"
Modeline "1920x1080_60.00_rb2" 133.19 1920 1928 1960 2000 1080 1097 1105 1111 +hsync -vsync
Option "PreferredMode" "1920x1080_60.00_rb2"
Option "Primary" "true"
Option "RightOf" "DisplayPort-0"
Option "DPMS" "true"
EndSection
Section "Monitor"
Identifier "DisplayPort-0"
Modeline "1920x1080_60.00_rb2" 133.19 1920 1928 1960 2000 1080 1097 1105 1111 +hsync -vsync
Option "PreferredMode" "1920x1080_60.00_rb2"
Option "LeftOf" "HDMI-A-0"
Option "DPMS" "true"
EndSection
Section "Screen"
Identifier "Screen 0"
Device "AMD"
Monitor "HDMI-A-0"
EndSection
Section "Device"
Identifier "AMD"
Driver "amdgpu"
EndSection
The modeline was generated using cvt12 1920 1080 60 -b -o .
What I found
Using the official Manjaro KDE live iso (no additional config), the resolution isn’t right for the monitor connected with Display-Port (whatever the position, left or right). But correct for the HDM monitor.
Compiling the iso myself with buildiso with custom 10-monitor.conf file from above doesn’t work: the Display-Port monitor just goes black, as if it was not connected.
The EDID sent by the monitors aren’t the same, and changes if I switch the cables.
I think it’s a good lead to identify the problem, but I’m open to anything else.
Decoded EDID :
- Normal setup:
- Display-Port with left monitor (dp-left.txt):
// dp-left
edid-decode (hex):
00 ff ff ff ff ff ff 00 5a 63 39 b6 01 01 01 01
26 1e 01 04 a5 35 1e 78 3f ce 65 a6 57 51 9f 27
0f 50 54 bf ef 80 b3 00 a9 40 a9 c0 95 00 90 40
81 80 81 40 81 c0 02 3a 80 18 71 38 2d 40 58 2c
45 00 0f 28 21 00 00 1e 00 00 00 ff 00 57 35 4c
32 30 33 38 34 31 39 33 38 0a 00 00 00 fd 00 30
4b 56 56 12 01 0a 20 20 20 20 20 20 00 00 00 fc
00 56 41 32 34 33 32 2d 46 48 44 0a 20 20 01 40
02 03 1a f1 4d 90 05 04 03 02 12 11 13 14 1e 1d
1f 01 23 09 7f 07 83 01 00 00 2a 44 80 a0 70 38
27 40 30 20 35 00 0f 28 21 00 00 1a 01 1d 80 18
71 1c 16 20 58 2c 25 00 0f 28 21 00 00 9e 01 1d
00 72 51 d0 1e 20 6e 28 55 00 0f 28 21 00 00 1e
02 3a 80 d0 72 38 2d 40 10 2c 45 80 0f 28 21 00
00 1e 8c 0a d0 8a 20 e0 2d 10 10 3e 96 00 0f 28
21 00 00 18 00 00 00 00 00 00 00 00 00 00 00 93
----------------
Block 0, Base EDID:
EDID Structure Version & Revision: 1.4
Vendor & Product Identification:
Manufacturer: VSC
Model: 46649
Serial Number: 16843009
Made in: week 38 of 2020
Basic Display Parameters & Features:
Digital display
Bits per primary color channel: 8
DisplayPort interface
Maximum image size: 53 cm x 30 cm
Gamma: 2.20
DPMS levels: Off
Supported color formats: RGB 4:4:4, YCrCb 4:4:4, YCrCb 4:2:2
Default (sRGB) color space is primary color space
First detailed timing includes the native pixel format and preferred refresh rate
Display is continuous frequency
Color Characteristics:
Red : 0.6513, 0.3398
Green: 0.3193, 0.6230
Blue : 0.1533, 0.0605
White: 0.3134, 0.3291
Established Timings I & II:
IBM : 720x400 70.082 Hz 9:5 31.467 kHz 28.320 MHz
DMT 0x04: 640x480 59.940 Hz 4:3 31.469 kHz 25.175 MHz
Apple : 640x480 66.667 Hz 4:3 35.000 kHz 30.240 MHz
DMT 0x05: 640x480 72.809 Hz 4:3 37.861 kHz 31.500 MHz
DMT 0x06: 640x480 75.000 Hz 4:3 37.500 kHz 31.500 MHz
DMT 0x08: 800x600 56.250 Hz 4:3 35.156 kHz 36.000 MHz
DMT 0x09: 800x600 60.317 Hz 4:3 37.879 kHz 40.000 MHz
DMT 0x0a: 800x600 72.188 Hz 4:3 48.077 kHz 50.000 MHz
DMT 0x0b: 800x600 75.000 Hz 4:3 46.875 kHz 49.500 MHz
Apple : 832x624 74.551 Hz 4:3 49.726 kHz 57.284 MHz
DMT 0x10: 1024x768 60.004 Hz 4:3 48.363 kHz 65.000 MHz
DMT 0x11: 1024x768 70.069 Hz 4:3 56.476 kHz 75.000 MHz
DMT 0x12: 1024x768 75.029 Hz 4:3 60.023 kHz 78.750 MHz
DMT 0x24: 1280x1024 75.025 Hz 5:4 79.976 kHz 135.000 MHz
Apple : 1152x870 75.062 Hz 192:145 68.681 kHz 100.000 MHz
Standard Timings:
DMT 0x3a: 1680x1050 59.954 Hz 16:10 65.290 kHz 146.250 MHz
DMT 0x33: 1600x1200 60.000 Hz 4:3 75.000 kHz 162.000 MHz
DMT 0x53: 1600x900 60.000 Hz 16:9 60.000 kHz 108.000 MHz (RB)
DMT 0x2f: 1440x900 59.887 Hz 16:10 55.935 kHz 106.500 MHz
DMT 0x2a: 1400x1050 59.978 Hz 4:3 65.317 kHz 121.750 MHz
DMT 0x23: 1280x1024 60.020 Hz 5:4 63.981 kHz 108.000 MHz
DMT 0x20: 1280x960 60.000 Hz 4:3 60.000 kHz 108.000 MHz
DMT 0x55: 1280x720 60.000 Hz 16:9 45.000 kHz 74.250 MHz
Detailed Timing Descriptors:
DTD 1: 1920x1080 60.000 Hz 16:9 67.500 kHz 148.500 MHz (527 mm x 296 mm)
Hfront 88 Hsync 44 Hback 148 Hpol P
Vfront 4 Vsync 5 Vback 36 Vpol P
Display Product Serial Number: 'W5L203841938'
Display Range Limits:
Monitor ranges (Bare Limits): 48-75 Hz V, 86-86 kHz H, max dotclock 180 MHz
Display Product Name: 'VA2432-FHD'
Extension blocks: 1
Checksum: 0x40
----------------
Block 1, CTA-861 Extension Block:
Revision: 3
Underscans IT Video Formats by default
Basic audio support
Supports YCbCr 4:4:4
Supports YCbCr 4:2:2
Native detailed modes: 1
Video Data Block:
VIC 16: 1920x1080 60.000 Hz 16:9 67.500 kHz 148.500 MHz (native)
VIC 5: 1920x1080i 60.000 Hz 16:9 33.750 kHz 74.250 MHz
VIC 4: 1280x720 60.000 Hz 16:9 45.000 kHz 74.250 MHz
VIC 3: 720x480 59.940 Hz 16:9 31.469 kHz 27.000 MHz
VIC 2: 720x480 59.940 Hz 4:3 31.469 kHz 27.000 MHz
VIC 18: 720x576 50.000 Hz 16:9 31.250 kHz 27.000 MHz
VIC 17: 720x576 50.000 Hz 4:3 31.250 kHz 27.000 MHz
VIC 19: 1280x720 50.000 Hz 16:9 37.500 kHz 74.250 MHz
VIC 20: 1920x1080i 50.000 Hz 16:9 28.125 kHz 74.250 MHz
VIC 30: 1440x576 50.000 Hz 16:9 31.250 kHz 54.000 MHz
VIC 29: 1440x576 50.000 Hz 4:3 31.250 kHz 54.000 MHz
VIC 31: 1920x1080 50.000 Hz 16:9 56.250 kHz 148.500 MHz
VIC 1: 640x480 59.940 Hz 4:3 31.469 kHz 25.175 MHz
Audio Data Block:
Linear PCM:
Max channels: 2
Supported sample rates (kHz): 192 176.4 96 88.2 48 44.1 32
Supported sample sizes (bits): 24 20 16
Speaker Allocation Data Block:
FL/FR - Front Left/Right
Detailed Timing Descriptors:
DTD 2: 1920x1080 74.973 Hz 16:9 83.894 kHz 174.500 MHz (527 mm x 296 mm)
Hfront 48 Hsync 32 Hback 80 Hpol P
Vfront 3 Vsync 5 Vback 31 Vpol N
DTD 3: 1920x1080i 60.000 Hz 16:9 33.750 kHz 74.250 MHz (527 mm x 296 mm)
Hfront 88 Hsync 44 Hback 148 Hpol P
Vfront 2 Vsync 5 Vback 15 Vpol P Vfront +0.5 Odd Field
Vfront 2 Vsync 5 Vback 15 Vpol P Vback +0.5 Even Field
DTD 4: 1280x720 60.000 Hz 16:9 45.000 kHz 74.250 MHz (527 mm x 296 mm)
Hfront 110 Hsync 40 Hback 220 Hpol P
Vfront 5 Vsync 5 Vback 20 Vpol P
DTD 5: 1920x1080 50.000 Hz 16:9 56.250 kHz 148.500 MHz (527 mm x 296 mm)
Hfront 528 Hsync 44 Hback 148 Hpol P
Vfront 4 Vsync 5 Vback 36 Vpol P
DTD 6: 720x480 59.940 Hz 3:2 31.469 kHz 27.000 MHz (527 mm x 296 mm)
Hfront 16 Hsync 62 Hback 60 Hpol N
Vfront 9 Vsync 6 Vback 30 Vpol N
Checksum: 0x93
- HDMI with right monitor (hdmi-right.txt):
// hdmi-right
edid-decode (hex):
00 ff ff ff ff ff ff 00 5a 63 39 b6 01 01 01 01
26 1e 01 03 80 35 1e 78 2e ce 65 a6 57 51 9f 27
0f 50 54 bf ef 80 b3 00 a9 40 a9 c0 95 00 90 40
81 80 81 40 81 c0 02 3a 80 18 71 38 2d 40 58 2c
45 00 0f 28 21 00 00 1e 00 00 00 ff 00 57 35 4c
32 30 33 38 34 32 32 31 38 0a 00 00 00 fd 00 30
4b 18 56 12 00 0a 20 20 20 20 20 20 00 00 00 fc
00 56 41 32 34 33 32 2d 46 48 44 0a 20 20 01 be
02 03 29 f1 4d 90 05 04 03 02 12 11 13 14 1e 1d
1f 01 23 09 7f 07 83 01 00 00 65 03 0c 00 10 00
68 1a 00 00 01 01 30 4b e6 2a 44 80 a0 70 38 27
40 30 20 35 00 0f 28 21 00 00 1a 01 1d 80 18 71
1c 16 20 58 2c 25 00 0f 28 21 00 00 9e 01 1d 00
72 51 d0 1e 20 6e 28 55 00 0f 28 21 00 00 1e 02
3a 80 d0 72 38 2d 40 10 2c 45 80 0f 28 21 00 00
1e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 9c
----------------
Block 0, Base EDID:
EDID Structure Version & Revision: 1.3
Vendor & Product Identification:
Manufacturer: VSC
Model: 46649
Serial Number: 16843009
Made in: week 38 of 2020
Basic Display Parameters & Features:
Digital display
Maximum image size: 53 cm x 30 cm
Gamma: 2.20
DPMS levels: Off
RGB color display
Default (sRGB) color space is primary color space
First detailed timing is the preferred timing
Color Characteristics:
Red : 0.6513, 0.3398
Green: 0.3193, 0.6230
Blue : 0.1533, 0.0605
White: 0.3134, 0.3291
Established Timings I & II:
IBM : 720x400 70.082 Hz 9:5 31.467 kHz 28.320 MHz
DMT 0x04: 640x480 59.940 Hz 4:3 31.469 kHz 25.175 MHz
Apple : 640x480 66.667 Hz 4:3 35.000 kHz 30.240 MHz
DMT 0x05: 640x480 72.809 Hz 4:3 37.861 kHz 31.500 MHz
DMT 0x06: 640x480 75.000 Hz 4:3 37.500 kHz 31.500 MHz
DMT 0x08: 800x600 56.250 Hz 4:3 35.156 kHz 36.000 MHz
DMT 0x09: 800x600 60.317 Hz 4:3 37.879 kHz 40.000 MHz
DMT 0x0a: 800x600 72.188 Hz 4:3 48.077 kHz 50.000 MHz
DMT 0x0b: 800x600 75.000 Hz 4:3 46.875 kHz 49.500 MHz
Apple : 832x624 74.551 Hz 4:3 49.726 kHz 57.284 MHz
DMT 0x10: 1024x768 60.004 Hz 4:3 48.363 kHz 65.000 MHz
DMT 0x11: 1024x768 70.069 Hz 4:3 56.476 kHz 75.000 MHz
DMT 0x12: 1024x768 75.029 Hz 4:3 60.023 kHz 78.750 MHz
DMT 0x24: 1280x1024 75.025 Hz 5:4 79.976 kHz 135.000 MHz
Apple : 1152x870 75.062 Hz 192:145 68.681 kHz 100.000 MHz
Standard Timings:
DMT 0x3a: 1680x1050 59.954 Hz 16:10 65.290 kHz 146.250 MHz
DMT 0x33: 1600x1200 60.000 Hz 4:3 75.000 kHz 162.000 MHz
DMT 0x53: 1600x900 60.000 Hz 16:9 60.000 kHz 108.000 MHz (RB)
DMT 0x2f: 1440x900 59.887 Hz 16:10 55.935 kHz 106.500 MHz
DMT 0x2a: 1400x1050 59.978 Hz 4:3 65.317 kHz 121.750 MHz
DMT 0x23: 1280x1024 60.020 Hz 5:4 63.981 kHz 108.000 MHz
DMT 0x20: 1280x960 60.000 Hz 4:3 60.000 kHz 108.000 MHz
DMT 0x55: 1280x720 60.000 Hz 16:9 45.000 kHz 74.250 MHz
Detailed Timing Descriptors:
DTD 1: 1920x1080 60.000 Hz 16:9 67.500 kHz 148.500 MHz (527 mm x 296 mm)
Hfront 88 Hsync 44 Hback 148 Hpol P
Vfront 4 Vsync 5 Vback 36 Vpol P
Display Product Serial Number: 'W5L203842218'
Display Range Limits:
Monitor ranges (GTF): 48-75 Hz V, 24-86 kHz H, max dotclock 180 MHz
Display Product Name: 'VA2432-FHD'
Extension blocks: 1
Checksum: 0xbe
----------------
Block 1, CTA-861 Extension Block:
Revision: 3
Underscans IT Video Formats by default
Basic audio support
Supports YCbCr 4:4:4
Supports YCbCr 4:2:2
Native detailed modes: 1
Video Data Block:
VIC 16: 1920x1080 60.000 Hz 16:9 67.500 kHz 148.500 MHz (native)
VIC 5: 1920x1080i 60.000 Hz 16:9 33.750 kHz 74.250 MHz
VIC 4: 1280x720 60.000 Hz 16:9 45.000 kHz 74.250 MHz
VIC 3: 720x480 59.940 Hz 16:9 31.469 kHz 27.000 MHz
VIC 2: 720x480 59.940 Hz 4:3 31.469 kHz 27.000 MHz
VIC 18: 720x576 50.000 Hz 16:9 31.250 kHz 27.000 MHz
VIC 17: 720x576 50.000 Hz 4:3 31.250 kHz 27.000 MHz
VIC 19: 1280x720 50.000 Hz 16:9 37.500 kHz 74.250 MHz
VIC 20: 1920x1080i 50.000 Hz 16:9 28.125 kHz 74.250 MHz
VIC 30: 1440x576 50.000 Hz 16:9 31.250 kHz 54.000 MHz
VIC 29: 1440x576 50.000 Hz 4:3 31.250 kHz 54.000 MHz
VIC 31: 1920x1080 50.000 Hz 16:9 56.250 kHz 148.500 MHz
VIC 1: 640x480 59.940 Hz 4:3 31.469 kHz 25.175 MHz
Audio Data Block:
Linear PCM:
Max channels: 2
Supported sample rates (kHz): 192 176.4 96 88.2 48 44.1 32
Supported sample sizes (bits): 24 20 16
Speaker Allocation Data Block:
FL/FR - Front Left/Right
Vendor-Specific Data Block (HDMI), OUI 00-0C-03:
Source physical address: 1.0.0.0
Vendor-Specific Data Block (AMD), OUI 00-00-1A:
Version: 1.1
Minimum Refresh Rate: 48 Hz
Maximum Refresh Rate: 75 Hz
Flags 1.x: 0xe6 (MCCS)
Detailed Timing Descriptors:
DTD 2: 1920x1080 74.973 Hz 16:9 83.894 kHz 174.500 MHz (527 mm x 296 mm)
Hfront 48 Hsync 32 Hback 80 Hpol P
Vfront 3 Vsync 5 Vback 31 Vpol N
DTD 3: 1920x1080i 60.000 Hz 16:9 33.750 kHz 74.250 MHz (527 mm x 296 mm)
Hfront 88 Hsync 44 Hback 148 Hpol P
Vfront 2 Vsync 5 Vback 15 Vpol P Vfront +0.5 Odd Field
Vfront 2 Vsync 5 Vback 15 Vpol P Vback +0.5 Even Field
DTD 4: 1280x720 60.000 Hz 16:9 45.000 kHz 74.250 MHz (527 mm x 296 mm)
Hfront 110 Hsync 40 Hback 220 Hpol P
Vfront 5 Vsync 5 Vback 20 Vpol P
DTD 5: 1920x1080 50.000 Hz 16:9 56.250 kHz 148.500 MHz (527 mm x 296 mm)
Hfront 528 Hsync 44 Hback 148 Hpol P
Vfront 4 Vsync 5 Vback 36 Vpol P
Checksum: 0x9c
- Switched setup:
- HDMI with left monitor (hdmi-left.txt):
// hdmi-left
edid-decode (hex):
00 ff ff ff ff ff ff 00 5a 63 39 b6 01 01 01 01
26 1e 01 03 80 35 1e 78 2e ce 65 a6 57 51 9f 27
0f 50 54 bf ef 80 b3 00 a9 40 a9 c0 95 00 90 40
81 80 81 40 81 c0 02 3a 80 18 71 38 2d 40 58 2c
45 00 0f 28 21 00 00 1e 00 00 00 ff 00 57 35 4c
32 30 33 38 34 31 39 33 38 0a 00 00 00 fd 00 30
4b 18 56 12 00 0a 20 20 20 20 20 20 00 00 00 fc
00 56 41 32 34 33 32 2d 46 48 44 0a 20 20 01 b6
02 03 29 f1 4d 90 05 04 03 02 12 11 13 14 1e 1d
1f 01 23 09 7f 07 83 01 00 00 65 03 0c 00 10 00
68 1a 00 00 01 01 30 4b e6 2a 44 80 a0 70 38 27
40 30 20 35 00 0f 28 21 00 00 1a 01 1d 80 18 71
1c 16 20 58 2c 25 00 0f 28 21 00 00 9e 01 1d 00
72 51 d0 1e 20 6e 28 55 00 0f 28 21 00 00 1e 02
3a 80 d0 72 38 2d 40 10 2c 45 80 0f 28 21 00 00
1e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 9c
----------------
Block 0, Base EDID:
EDID Structure Version & Revision: 1.3
Vendor & Product Identification:
Manufacturer: VSC
Model: 46649
Serial Number: 16843009
Made in: week 38 of 2020
Basic Display Parameters & Features:
Digital display
Maximum image size: 53 cm x 30 cm
Gamma: 2.20
DPMS levels: Off
RGB color display
Default (sRGB) color space is primary color space
First detailed timing is the preferred timing
Color Characteristics:
Red : 0.6513, 0.3398
Green: 0.3193, 0.6230
Blue : 0.1533, 0.0605
White: 0.3134, 0.3291
Established Timings I & II:
IBM : 720x400 70.082 Hz 9:5 31.467 kHz 28.320 MHz
DMT 0x04: 640x480 59.940 Hz 4:3 31.469 kHz 25.175 MHz
Apple : 640x480 66.667 Hz 4:3 35.000 kHz 30.240 MHz
DMT 0x05: 640x480 72.809 Hz 4:3 37.861 kHz 31.500 MHz
DMT 0x06: 640x480 75.000 Hz 4:3 37.500 kHz 31.500 MHz
DMT 0x08: 800x600 56.250 Hz 4:3 35.156 kHz 36.000 MHz
DMT 0x09: 800x600 60.317 Hz 4:3 37.879 kHz 40.000 MHz
DMT 0x0a: 800x600 72.188 Hz 4:3 48.077 kHz 50.000 MHz
DMT 0x0b: 800x600 75.000 Hz 4:3 46.875 kHz 49.500 MHz
Apple : 832x624 74.551 Hz 4:3 49.726 kHz 57.284 MHz
DMT 0x10: 1024x768 60.004 Hz 4:3 48.363 kHz 65.000 MHz
DMT 0x11: 1024x768 70.069 Hz 4:3 56.476 kHz 75.000 MHz
DMT 0x12: 1024x768 75.029 Hz 4:3 60.023 kHz 78.750 MHz
DMT 0x24: 1280x1024 75.025 Hz 5:4 79.976 kHz 135.000 MHz
Apple : 1152x870 75.062 Hz 192:145 68.681 kHz 100.000 MHz
Standard Timings:
DMT 0x3a: 1680x1050 59.954 Hz 16:10 65.290 kHz 146.250 MHz
DMT 0x33: 1600x1200 60.000 Hz 4:3 75.000 kHz 162.000 MHz
DMT 0x53: 1600x900 60.000 Hz 16:9 60.000 kHz 108.000 MHz (RB)
DMT 0x2f: 1440x900 59.887 Hz 16:10 55.935 kHz 106.500 MHz
DMT 0x2a: 1400x1050 59.978 Hz 4:3 65.317 kHz 121.750 MHz
DMT 0x23: 1280x1024 60.020 Hz 5:4 63.981 kHz 108.000 MHz
DMT 0x20: 1280x960 60.000 Hz 4:3 60.000 kHz 108.000 MHz
DMT 0x55: 1280x720 60.000 Hz 16:9 45.000 kHz 74.250 MHz
Detailed Timing Descriptors:
DTD 1: 1920x1080 60.000 Hz 16:9 67.500 kHz 148.500 MHz (527 mm x 296 mm)
Hfront 88 Hsync 44 Hback 148 Hpol P
Vfront 4 Vsync 5 Vback 36 Vpol P
Display Product Serial Number: 'W5L203841938'
Display Range Limits:
Monitor ranges (GTF): 48-75 Hz V, 24-86 kHz H, max dotclock 180 MHz
Display Product Name: 'VA2432-FHD'
Extension blocks: 1
Checksum: 0xb6
----------------
Block 1, CTA-861 Extension Block:
Revision: 3
Underscans IT Video Formats by default
Basic audio support
Supports YCbCr 4:4:4
Supports YCbCr 4:2:2
Native detailed modes: 1
Video Data Block:
VIC 16: 1920x1080 60.000 Hz 16:9 67.500 kHz 148.500 MHz (native)
VIC 5: 1920x1080i 60.000 Hz 16:9 33.750 kHz 74.250 MHz
VIC 4: 1280x720 60.000 Hz 16:9 45.000 kHz 74.250 MHz
VIC 3: 720x480 59.940 Hz 16:9 31.469 kHz 27.000 MHz
VIC 2: 720x480 59.940 Hz 4:3 31.469 kHz 27.000 MHz
VIC 18: 720x576 50.000 Hz 16:9 31.250 kHz 27.000 MHz
VIC 17: 720x576 50.000 Hz 4:3 31.250 kHz 27.000 MHz
VIC 19: 1280x720 50.000 Hz 16:9 37.500 kHz 74.250 MHz
VIC 20: 1920x1080i 50.000 Hz 16:9 28.125 kHz 74.250 MHz
VIC 30: 1440x576 50.000 Hz 16:9 31.250 kHz 54.000 MHz
VIC 29: 1440x576 50.000 Hz 4:3 31.250 kHz 54.000 MHz
VIC 31: 1920x1080 50.000 Hz 16:9 56.250 kHz 148.500 MHz
VIC 1: 640x480 59.940 Hz 4:3 31.469 kHz 25.175 MHz
Audio Data Block:
Linear PCM:
Max channels: 2
Supported sample rates (kHz): 192 176.4 96 88.2 48 44.1 32
Supported sample sizes (bits): 24 20 16
Speaker Allocation Data Block:
FL/FR - Front Left/Right
Vendor-Specific Data Block (HDMI), OUI 00-0C-03:
Source physical address: 1.0.0.0
Vendor-Specific Data Block (AMD), OUI 00-00-1A:
Version: 1.1
Minimum Refresh Rate: 48 Hz
Maximum Refresh Rate: 75 Hz
Flags 1.x: 0xe6 (MCCS)
Detailed Timing Descriptors:
DTD 2: 1920x1080 74.973 Hz 16:9 83.894 kHz 174.500 MHz (527 mm x 296 mm)
Hfront 48 Hsync 32 Hback 80 Hpol P
Vfront 3 Vsync 5 Vback 31 Vpol N
DTD 3: 1920x1080i 60.000 Hz 16:9 33.750 kHz 74.250 MHz (527 mm x 296 mm)
Hfront 88 Hsync 44 Hback 148 Hpol P
Vfront 2 Vsync 5 Vback 15 Vpol P Vfront +0.5 Odd Field
Vfront 2 Vsync 5 Vback 15 Vpol P Vback +0.5 Even Field
DTD 4: 1280x720 60.000 Hz 16:9 45.000 kHz 74.250 MHz (527 mm x 296 mm)
Hfront 110 Hsync 40 Hback 220 Hpol P
Vfront 5 Vsync 5 Vback 20 Vpol P
DTD 5: 1920x1080 50.000 Hz 16:9 56.250 kHz 148.500 MHz (527 mm x 296 mm)
Hfront 528 Hsync 44 Hback 148 Hpol P
Vfront 4 Vsync 5 Vback 36 Vpol P
Checksum: 0x9c
- Display-Port with right monitor (dp-right.txt):
// dp-right
edid-decode (hex):
00 ff ff ff ff ff ff 00 5a 63 39 b6 01 01 01 01
26 1e 01 04 a5 35 1e 78 3f ce 65 a6 57 51 9f 27
0f 50 54 bf ef 80 b3 00 a9 40 a9 c0 95 00 90 40
81 80 81 40 81 c0 02 3a 80 18 71 38 2d 40 58 2c
45 00 0f 28 21 00 00 1e 00 00 00 ff 00 57 35 4c
32 30 33 38 34 32 32 31 38 0a 00 00 00 fd 00 30
4b 56 56 12 01 0a 20 20 20 20 20 20 00 00 00 fc
00 56 41 32 34 33 32 2d 46 48 44 0a 20 20 01 48
02 03 1a f1 4d 90 05 04 03 02 12 11 13 14 1e 1d
1f 01 23 09 7f 07 83 01 00 00 2a 44 80 a0 70 38
27 40 30 20 35 00 0f 28 21 00 00 1a 01 1d 80 18
71 1c 16 20 58 2c 25 00 0f 28 21 00 00 9e 01 1d
00 72 51 d0 1e 20 6e 28 55 00 0f 28 21 00 00 1e
02 3a 80 d0 72 38 2d 40 10 2c 45 80 0f 28 21 00
00 1e 8c 0a d0 8a 20 e0 2d 10 10 3e 96 00 0f 28
21 00 00 18 00 00 00 00 00 00 00 00 00 00 00 93
----------------
Block 0, Base EDID:
EDID Structure Version & Revision: 1.4
Vendor & Product Identification:
Manufacturer: VSC
Model: 46649
Serial Number: 16843009
Made in: week 38 of 2020
Basic Display Parameters & Features:
Digital display
Bits per primary color channel: 8
DisplayPort interface
Maximum image size: 53 cm x 30 cm
Gamma: 2.20
DPMS levels: Off
Supported color formats: RGB 4:4:4, YCrCb 4:4:4, YCrCb 4:2:2
Default (sRGB) color space is primary color space
First detailed timing includes the native pixel format and preferred refresh rate
Display is continuous frequency
Color Characteristics:
Red : 0.6513, 0.3398
Green: 0.3193, 0.6230
Blue : 0.1533, 0.0605
White: 0.3134, 0.3291
Established Timings I & II:
IBM : 720x400 70.082 Hz 9:5 31.467 kHz 28.320 MHz
DMT 0x04: 640x480 59.940 Hz 4:3 31.469 kHz 25.175 MHz
Apple : 640x480 66.667 Hz 4:3 35.000 kHz 30.240 MHz
DMT 0x05: 640x480 72.809 Hz 4:3 37.861 kHz 31.500 MHz
DMT 0x06: 640x480 75.000 Hz 4:3 37.500 kHz 31.500 MHz
DMT 0x08: 800x600 56.250 Hz 4:3 35.156 kHz 36.000 MHz
DMT 0x09: 800x600 60.317 Hz 4:3 37.879 kHz 40.000 MHz
DMT 0x0a: 800x600 72.188 Hz 4:3 48.077 kHz 50.000 MHz
DMT 0x0b: 800x600 75.000 Hz 4:3 46.875 kHz 49.500 MHz
Apple : 832x624 74.551 Hz 4:3 49.726 kHz 57.284 MHz
DMT 0x10: 1024x768 60.004 Hz 4:3 48.363 kHz 65.000 MHz
DMT 0x11: 1024x768 70.069 Hz 4:3 56.476 kHz 75.000 MHz
DMT 0x12: 1024x768 75.029 Hz 4:3 60.023 kHz 78.750 MHz
DMT 0x24: 1280x1024 75.025 Hz 5:4 79.976 kHz 135.000 MHz
Apple : 1152x870 75.062 Hz 192:145 68.681 kHz 100.000 MHz
Standard Timings:
DMT 0x3a: 1680x1050 59.954 Hz 16:10 65.290 kHz 146.250 MHz
DMT 0x33: 1600x1200 60.000 Hz 4:3 75.000 kHz 162.000 MHz
DMT 0x53: 1600x900 60.000 Hz 16:9 60.000 kHz 108.000 MHz (RB)
DMT 0x2f: 1440x900 59.887 Hz 16:10 55.935 kHz 106.500 MHz
DMT 0x2a: 1400x1050 59.978 Hz 4:3 65.317 kHz 121.750 MHz
DMT 0x23: 1280x1024 60.020 Hz 5:4 63.981 kHz 108.000 MHz
DMT 0x20: 1280x960 60.000 Hz 4:3 60.000 kHz 108.000 MHz
DMT 0x55: 1280x720 60.000 Hz 16:9 45.000 kHz 74.250 MHz
Detailed Timing Descriptors:
DTD 1: 1920x1080 60.000 Hz 16:9 67.500 kHz 148.500 MHz (527 mm x 296 mm)
Hfront 88 Hsync 44 Hback 148 Hpol P
Vfront 4 Vsync 5 Vback 36 Vpol P
Display Product Serial Number: 'W5L203842218'
Display Range Limits:
Monitor ranges (Bare Limits): 48-75 Hz V, 86-86 kHz H, max dotclock 180 MHz
Display Product Name: 'VA2432-FHD'
Extension blocks: 1
Checksum: 0x48
----------------
Block 1, CTA-861 Extension Block:
Revision: 3
Underscans IT Video Formats by default
Basic audio support
Supports YCbCr 4:4:4
Supports YCbCr 4:2:2
Native detailed modes: 1
Video Data Block:
VIC 16: 1920x1080 60.000 Hz 16:9 67.500 kHz 148.500 MHz (native)
VIC 5: 1920x1080i 60.000 Hz 16:9 33.750 kHz 74.250 MHz
VIC 4: 1280x720 60.000 Hz 16:9 45.000 kHz 74.250 MHz
VIC 3: 720x480 59.940 Hz 16:9 31.469 kHz 27.000 MHz
VIC 2: 720x480 59.940 Hz 4:3 31.469 kHz 27.000 MHz
VIC 18: 720x576 50.000 Hz 16:9 31.250 kHz 27.000 MHz
VIC 17: 720x576 50.000 Hz 4:3 31.250 kHz 27.000 MHz
VIC 19: 1280x720 50.000 Hz 16:9 37.500 kHz 74.250 MHz
VIC 20: 1920x1080i 50.000 Hz 16:9 28.125 kHz 74.250 MHz
VIC 30: 1440x576 50.000 Hz 16:9 31.250 kHz 54.000 MHz
VIC 29: 1440x576 50.000 Hz 4:3 31.250 kHz 54.000 MHz
VIC 31: 1920x1080 50.000 Hz 16:9 56.250 kHz 148.500 MHz
VIC 1: 640x480 59.940 Hz 4:3 31.469 kHz 25.175 MHz
Audio Data Block:
Linear PCM:
Max channels: 2
Supported sample rates (kHz): 192 176.4 96 88.2 48 44.1 32
Supported sample sizes (bits): 24 20 16
Speaker Allocation Data Block:
FL/FR - Front Left/Right
Detailed Timing Descriptors:
DTD 2: 1920x1080 74.973 Hz 16:9 83.894 kHz 174.500 MHz (527 mm x 296 mm)
Hfront 48 Hsync 32 Hback 80 Hpol P
Vfront 3 Vsync 5 Vback 31 Vpol N
DTD 3: 1920x1080i 60.000 Hz 16:9 33.750 kHz 74.250 MHz (527 mm x 296 mm)
Hfront 88 Hsync 44 Hback 148 Hpol P
Vfront 2 Vsync 5 Vback 15 Vpol P Vfront +0.5 Odd Field
Vfront 2 Vsync 5 Vback 15 Vpol P Vback +0.5 Even Field
DTD 4: 1280x720 60.000 Hz 16:9 45.000 kHz 74.250 MHz (527 mm x 296 mm)
Hfront 110 Hsync 40 Hback 220 Hpol P
Vfront 5 Vsync 5 Vback 20 Vpol P
DTD 5: 1920x1080 50.000 Hz 16:9 56.250 kHz 148.500 MHz (527 mm x 296 mm)
Hfront 528 Hsync 44 Hback 148 Hpol P
Vfront 4 Vsync 5 Vback 36 Vpol P
DTD 6: 720x480 59.940 Hz 3:2 31.469 kHz 27.000 MHz (527 mm x 296 mm)
Hfront 16 Hsync 62 Hback 60 Hpol N
Vfront 9 Vsync 6 Vback 30 Vpol N
Checksum: 0x93
I’ve played with vim -d and I found a few things when switching cables (the following are examples from vim -d dp-left.txt hdmi-left.txt, but valid for the right monitor)
- the “EDID Structure Version & Revision” don’t match, 1.4 with Display-Port and 1.3 with HDMI
- the “Display Range Limits” don’t match
- DP: Monitor ranges (Bare Limits): 48-75 Hz V, 86-86 kHz H, max dotclock 180 MHz
- HDMI: Monitor ranges (GTF): 48-75 Hz V, 24-86 kHz H, max dotclock 180 MHz
- when using Display-Port, it lacks a few fields displayed for HDMI :
- Vendor-Specific Data Block (HDMI)
- Vendor-Specific Data Block (AMD)
- Display-Port shows an additional field in the “Detailed Timing Descriptors” section:
DTD 6: 720x480 59.940 Hz 3:2 31.469 kHz 27.000 MHz (527 mm x 296 mm)
Hfront 16 Hsync 62 Hback 60 Hpol N
Vfront 9 Vsync 6 Vback 30 Vpol N
I think it’s where the issue comes from, but I’m not sure and don’t know how I can fix it.
Any help would be greatly appreciated 
PS: with a live USB of Linux Mint, same problem.