Neither Win11 nor Manjaro pick or show the correct edid entry

I have an Acer CB382CUR ultrawide curved monitor which allows 75Hz at its native resolution of 3840x1600. Connecting my Dell 9310 (Intel Iris Xe) via USB-C and Displayport Alt Mode only allows setting the monitor to 60Hz no matter if I use Win11 or Manjaro. Using a Macbook M4 this works with 75Hz with the same cable. In Manjaro, when running the following little script to get the edid entries: for f in find /sys/devices -name 'edid'; do echo "";echo $f;sudo cat $f| edid-decode;done I get this output: /sys/devices/pci0000:00/0000:00:02.0/drm/card1/card1-DP-4/edid EDID of 'stdin' was empty. /sys/devices/pci0000:00/0000:00:02.0/drm/card1/card1-HDMI-A-1/edid EDID of 'stdin' was empty. /sys/devices/pci0000:00/0000:00:02.0/drm/card1/card1-DP-2/edid EDID of 'stdin' was empty. /sys/devices/pci0000:00/0000:00:02.0/drm/card1/card1-eDP-1/edid edid-decode (hex): 00 ff ff ff ff ff ff 00 4d 10 f9 14 00 00 00 00 15 1e 01 04 a5 1d 12 78 0e de 50 a3 54 4c 99 26 0f 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 28 3c 80 a0 70 b0 23 40 30 20 36 00 20 b4 10 00 00 18 20 30 80 a0 70 b0 23 40 30 20 36 00 20 b4 10 00 00 18 00 00 00 fe 00 56 56 4b 38 59 81 4c 51 31 33 34 4e 31 00 00 00 00 00 02 41 03 32 00 12 00 00 0a 01 0a 20 20 00 7f ---------------- Block 0, Base EDID: EDID Structure Version & Revision: 1.4 Vendor & Product Identification: Manufacturer: SHP Model: 5369 Made in: week 21 of 2020 Basic Display Parameters & Features: Digital display Bits per primary color channel: 8 DisplayPort interface Maximum image size: 29 cm x 18 cm Gamma: 2.20 Supported color formats: RGB 4:4:4, YCrCb 4:4:4 Default (sRGB) color space is primary color space First detailed timing includes the native pixel format and preferred refresh rate Color Characteristics: Red : 0.6396, 0.3291 Green: 0.2998, 0.5996 Blue : 0.1494, 0.0595 White: 0.3125, 0.3281 Established Timings I & II: none Standard Timings: none Detailed Timing Descriptors: DTD 1: 1920x1200 59.950171 Hz 16:10 74.038 kHz 154.000000 MHz (288 mm x 180 mm) Hfront 48 Hsync 32 Hback 80 Hpol N Vfront 3 Vsync 6 Vback 26 Vpol N DTD 2: 1920x1200 47.960137 Hz 16:10 59.231 kHz 123.200000 MHz (288 mm x 180 mm) Hfront 48 Hsync 32 Hback 80 Hpol N Vfront 3 Vsync 6 Vback 26 Vpol N Alphanumeric Data String: 'VVK8Y.LQ134N1' Manufacturer-Specified Display Descriptor (0x00): 00 00 00 02 41 03 32 00 12 00 00 0a 01 0a 20 20 '....A.2....... ' Checksum: 0x7f /sys/devices/pci0000:00/0000:00:02.0/drm/card1/card1-DP-3/edid edid-decode (hex): 00 ff ff ff ff ff ff 00 04 72 63 09 02 a5 87 22 1c 20 01 04 b5 58 25 78 3b e4 05 ad 4f 45 ab 27 0e 50 54 bf ef 80 71 4f 81 40 81 80 81 c0 81 00 95 00 b3 00 d1 c0 50 9a 00 a0 f0 40 2e 60 08 20 08 08 70 6f 31 00 00 1a 00 00 00 ff 00 31 32 32 38 37 41 35 30 32 34 32 30 30 00 00 00 fd 00 30 4b 82 82 3c 01 0a 20 20 20 20 20 20 00 00 00 fc 00 43 42 33 38 32 43 55 52 0a 20 20 20 20 01 54 02 03 34 f1 4b 01 03 04 12 13 05 14 1f 90 07 5a 23 09 07 07 83 01 00 00 67 03 0c 00 10 00 38 78 68 1a 00 00 01 01 30 4b 00 e3 05 e0 00 e6 06 05 01 60 60 45 02 3a 80 18 71 38 2d 40 58 2c 45 00 70 6f 31 00 00 1e 18 4c 00 a0 f0 40 17 60 08 20 98 00 70 6f 31 00 00 1a 4c c2 00 a0 f0 40 3a 60 08 20 c8 08 70 6f 31 00 00 1a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 73 ---------------- Block 0, Base EDID: EDID Structure Version & Revision: 1.4 Vendor & Product Identification: Manufacturer: ACR Model: 2403 Serial Number: 579314946 (0x2287a502) Made in: week 28 of 2022 Basic Display Parameters & Features: Digital display Bits per primary color channel: 10 DisplayPort interface Maximum image size: 88 cm x 37 cm Gamma: 2.20 DPMS levels: Off Supported color formats: RGB 4:4:4, YCrCb 4:4:4, YCrCb 4:2:2 First detailed timing includes the native pixel format and preferred refresh rate Display supports continuous frequencies Color Characteristics: Red : 0.6787, 0.3105 Green: 0.2705, 0.6679 Blue : 0.1523, 0.0546 White: 0.3134, 0.3291 Established Timings I & II: IBM : 720x400 70.081663 Hz 9:5 31.467 kHz 28.320000 MHz DMT 0x04: 640x480 59.940476 Hz 4:3 31.469 kHz 25.175000 MHz Apple : 640x480 66.666667 Hz 4:3 35.000 kHz 30.240000 MHz DMT 0x05: 640x480 72.808802 Hz 4:3 37.861 kHz 31.500000 MHz DMT 0x06: 640x480 75.000000 Hz 4:3 37.500 kHz 31.500000 MHz DMT 0x08: 800x600 56.250000 Hz 4:3 35.156 kHz 36.000000 MHz DMT 0x09: 800x600 60.316541 Hz 4:3 37.879 kHz 40.000000 MHz DMT 0x0a: 800x600 72.187572 Hz 4:3 48.077 kHz 50.000000 MHz DMT 0x0b: 800x600 75.000000 Hz 4:3 46.875 kHz 49.500000 MHz Apple : 832x624 74.551266 Hz 4:3 49.726 kHz 57.284000 MHz DMT 0x10: 1024x768 60.003840 Hz 4:3 48.363 kHz 65.000000 MHz DMT 0x11: 1024x768 70.069359 Hz 4:3 56.476 kHz 75.000000 MHz DMT 0x12: 1024x768 75.028582 Hz 4:3 60.023 kHz 78.750000 MHz DMT 0x24: 1280x1024 75.024675 Hz 5:4 79.976 kHz 135.000000 MHz Apple : 1152x870 75.061550 Hz 192:145 68.681 kHz 100.000000 MHz Standard Timings: DMT 0x15: 1152x864 75.000000 Hz 4:3 67.500 kHz 108.000000 MHz DMT 0x20: 1280x960 60.000000 Hz 4:3 60.000 kHz 108.000000 MHz DMT 0x23: 1280x1024 60.019740 Hz 5:4 63.981 kHz 108.000000 MHz DMT 0x55: 1280x720 60.000000 Hz 16:9 45.000 kHz 74.250000 MHz DMT 0x1c: 1280x800 59.810326 Hz 16:10 49.702 kHz 83.500000 MHz DMT 0x2f: 1440x900 59.887445 Hz 16:10 55.935 kHz 106.500000 MHz DMT 0x3a: 1680x1050 59.954250 Hz 16:10 65.290 kHz 146.250000 MHz DMT 0x52: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz Detailed Timing Descriptors: DTD 1: 3840x1600 60.000000 Hz 12:5 98.760 kHz 395.040000 MHz (880 mm x 367 mm) Hfront 8 Hsync 32 Hback 120 Hpol P Vfront 32 Vsync 8 Vback 6 Vpol N Display Product Serial Number: '12287A5024200' Display Range Limits: Monitor ranges (Range Limits Only): 48-75 Hz V, 130-130 kHz H, max dotclock 600 MHz Display Product Name: 'CB382CUR' Extension blocks: 1 Checksum: 0x54 ---------------- 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 1: 640x480 59.940476 Hz 4:3 31.469 kHz 25.175000 MHz VIC 3: 720x480 59.940060 Hz 16:9 31.469 kHz 27.000000 MHz VIC 4: 1280x720 60.000000 Hz 16:9 45.000 kHz 74.250000 MHz VIC 18: 720x576 50.000000 Hz 16:9 31.250 kHz 27.000000 MHz VIC 19: 1280x720 50.000000 Hz 16:9 37.500 kHz 74.250000 MHz VIC 5: 1920x1080i 60.000000 Hz 16:9 33.750 kHz 74.250000 MHz VIC 20: 1920x1080i 50.000000 Hz 16:9 28.125 kHz 74.250000 MHz VIC 31: 1920x1080 50.000000 Hz 16:9 56.250 kHz 148.500000 MHz VIC 16: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz (native) VIC 7: 1440x480i 59.940060 Hz 16:9 15.734 kHz 27.000000 MHz VIC 90: 2560x1080 60.000000 Hz 64:27 66.000 kHz 198.000000 MHz Audio Data Block: Linear PCM: Max channels: 2 Supported sample rates (kHz): 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 DC_36bit DC_30bit DC_Y444 Maximum TMDS clock: 600 MHz Vendor-Specific Data Block (AMD), OUI 00-00-1A: Version: 1 Feature Caps: 0x01 Minimum Refresh Rate: 48 Hz Maximum Refresh Rate: 75 Hz Flags 1.x: 0x00 Colorimetry Data Block: BT2020cYCC BT2020YCC BT2020RGB HDR Static Metadata Data Block: Electro optical transfer functions: Traditional gamma - SDR luminance range SMPTE ST2084 Supported static metadata descriptors: Static metadata type 1 Desired content max luminance: 96 (400.000 cd/m^2) Desired content max frame-average luminance: 96 (400.000 cd/m^2) Desired content min luminance: 69 (0.293 cd/m^2) Detailed Timing Descriptors: DTD 2: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz (880 mm x 367 mm) Hfront 88 Hsync 44 Hback 148 Hpol P Vfront 4 Vsync 5 Vback 36 Vpol P DTD 3: 3840x1600 30.006161 Hz 12:5 48.700 kHz 194.800000 MHz (880 mm x 367 mm) Hfront 8 Hsync 32 Hback 120 Hpol P Vfront 9 Vsync 8 Vback 6 Vpol N DTD 4: 3840x1600 75.000000 Hz 12:5 124.350 kHz 497.400000 MHz (880 mm x 367 mm) Hfront 8 Hsync 32 Hback 120 Hpol P Vfront 44 Vsync 8 Vback 6 Vpol N Checksum: 0x73 Unused space in Extension Block: 21 bytes /sys/devices/pci0000:00/0000:00:02.0/drm/card1/card1-DP-1/edid EDID of 'stdin' was empty. As you can see the built-in laptop screen is the first entry at card1-eDP-1. All good with that. The external monitor is on card1-DP-3 and has two edid blocks. Both OSes only seem to see the first block as it contains the 60Hz setting only. However, the second block contains the correct 75Hz setting. DTD 4 to be precise. **How can I make Manjaro use this setting?** I'm on Wayland if it matters, but the issue is there with X as well. @editor: As this happens in Arch as well (had that previously installed), I'm changing the tags to just "linux". I assume the issue is distro-independent and probably an issue with the Intel provided driver which could explain the behaviour in both, Windows and Linux, as it is open source afaik.