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#1 2025-10-09 23:55:04

pavelatl
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Registered: 2025-10-09
Posts: 5

Intel ARC A770 + 4K 144Hz monitor — only 60Hz

Hi! I have an Intel Arc A770 and HIPER JM28EUI monitor (3840x2160, 144Hz).

In Windows 4K@144Hz works fine but in Linux (Arch, kernel 6.17.1, xe driver) only 60Hz available with any resolution on the same DP cable.
     
modetest shows no modes above 60Hz.
Wayland session (GNOME).

plz help me fix that
Thanks.

Last edited by pavelatl (2025-10-09 23:56:03)

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#2 2025-10-10 10:54:06

miaofthestars
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From: South Africa
Registered: 2023-04-20
Posts: 7
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Re: Intel ARC A770 + 4K 144Hz monitor — only 60Hz

Are you on Wayland or Xorg? Is this on Mesa? And do you possibly have the option of trying an HDMI connection? smile

Mia McKeown - she/her - calicomia@pm.me
"Praise then darkness, and creation unfinished."

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#3 2025-10-10 13:18:18

seth
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From: Don't DM me only for attention
Registered: 2012-09-03
Posts: 68,879

Re: Intel ARC A770 + 4K 144Hz monitor — only 60Hz

Wayland session (GNOME).

for OUT in /sys/class/drm/card*; do echo $OUT; edid-decode $OUT/edid; echo "================="; done

You'll need https://archlinux.org/packages/extra/x86_64/v4l-utils/

And also please test the situation on X11 and post your Xorg log, https://wiki.archlinux.org/title/Xorg#General (the entire log, the link is just to explain where to find it)

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#4 2025-10-10 23:36:12

pavelatl
Member
Registered: 2025-10-09
Posts: 5

Re: Intel ARC A770 + 4K 144Hz monitor — only 60Hz

for OUT in /sys/class/drm/card*; do echo $OUT; edid-decode $OUT/edid; echo "================="; done

This command do nothing, how can i use it correctly?

This was already installed

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#5 Yesterday 07:25:08

seth
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From: Don't DM me only for attention
Registered: 2012-09-03
Posts: 68,879

Re: Intel ARC A770 + 4K 144Hz monitor — only 60Hz

What do you mean "does nothing"?

ls -l /sys/class/drm/card*

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#6 Yesterday 14:28:29

pavelatl
Member
Registered: 2025-10-09
Posts: 5

Re: Intel ARC A770 + 4K 144Hz monitor — only 60Hz

seth wrote:

What do you mean "does nothing"?

i just pasted the whole line in terminal u send before and there was no response at all

Result of this command:

ls -l /sys/class/drm/card*
lrwxrwxrwx 1 root root 0 окт 11 17:24 /sys/class/drm/card0 -> ../../devices/pci0000:00/0000:00:01.0/0000:01:00.0/0000:02:01.0/0000:03:00.0/drm/card0/
lrwxrwxrwx 1 root root 0 окт 11 17:24 /sys/class/drm/card0-DP-1 -> ../../devices/pci0000:00/0000:00:01.0/0000:01:00.0/0000:02:01.0/0000:03:00.0/drm/card0/card0-DP-1/
lrwxrwxrwx 1 root root 0 окт 11 17:24 /sys/class/drm/card0-DP-2 -> ../../devices/pci0000:00/0000:00:01.0/0000:01:00.0/0000:02:01.0/0000:03:00.0/drm/card0/card0-DP-2/
lrwxrwxrwx 1 root root 0 окт 11 17:24 /sys/class/drm/card0-DP-3 -> ../../devices/pci0000:00/0000:00:01.0/0000:01:00.0/0000:02:01.0/0000:03:00.0/drm/card0/card0-DP-3/
lrwxrwxrwx 1 root root 0 окт 11 17:24 /sys/class/drm/card0-HDMI-A-1 -> ../../devices/pci0000:00/0000:00:01.0/0000:01:00.0/0000:02:01.0/0000:03:00.0/drm/card0/card0-HDMI-A-1/
lrwxrwxrwx 1 root root 0 окт 11 17:24 /sys/class/drm/card0-HDMI-A-2 -> ../../devices/pci0000:00/0000:00:01.0/0000:01:00.0/0000:02:01.0/0000:03:00.0/drm/card0/card0-HDMI-A-2/
lrwxrwxrwx 1 root root 0 окт 11 17:24 /sys/class/drm/card0-HDMI-A-3 -> ../../devices/pci0000:00/0000:00:01.0/0000:01:00.0/0000:02:01.0/0000:03:00.0/drm/card0/card0-HDMI-A-3/
lrwxrwxrwx 1 root root 0 окт 11 17:24 /sys/class/drm/card0-HDMI-A-4 -> ../../devices/pci0000:00/0000:00:01.0/0000:01:00.0/0000:02:01.0/0000:03:00.0/drm/card0/card0-HDMI-A-4/

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#7 Yesterday 14:30:55

seth
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From: Don't DM me only for attention
Registered: 2012-09-03
Posts: 68,879

Re: Intel ARC A770 + 4K 144Hz monitor — only 60Hz

Are you running something like fish?
The command loops over the outputs of which you clearly have some, so you'd expect a decent amount of lines printed from that.

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#8 Yesterday 16:20:54

pavelatl
Member
Registered: 2025-10-09
Posts: 5

Re: Intel ARC A770 + 4K 144Hz monitor — only 60Hz

seth wrote:

Are you running something like fish?
The command loops over the outputs of which you clearly have some, so you'd expect a decent amount of lines printed from that.

yea, sorry
here is the output of the first command with fish disabled

for OUT in /sys/class/drm/card*; do echo $OUT; edid-decode $OUT/edid; echo "================="; done
/sys/class/drm/card0
/sys/class/drm/card0/edid: No such file or directory
=================
/sys/class/drm/card0-DP-1
edid-decode (hex):

00 ff ff ff ff ff ff 00 5c 2d 00 28 00 00 00 00
2d 20 01 04 b5 3e 23 78 2f 87 e5 a4 56 50 9e 26
0d 50 54 21 08 00 d1 c0 b3 c0 81 c0 a9 c0 01 01
01 01 01 01 01 01 4d d0 00 a0 f0 70 3e 80 30 20
35 00 6c 5d 21 00 00 1a 00 00 00 fc 00 4a 4d 32
38 45 55 49 0a 20 20 20 20 20 00 00 00 fd 00 30
96 ff ff 87 01 0a 20 20 20 20 20 20 00 00 00 ff
00 0a 20 20 20 20 20 20 20 20 20 20 20 20 02 b0

02 03 2e f2 53 61 01 02 03 04 10 13 1f 20 21 22
3c 3d 3e 4c 5d 5e 5f 60 e2 00 d5 23 09 7f 07 83
01 00 00 e3 05 c0 00 e6 06 05 01 62 62 00 02 3a
80 18 71 38 2d 40 58 2c 25 00 6c 5d 21 00 00 1a
56 5e 00 a0 a0 a0 29 50 30 20 35 00 6c 5d 21 00
00 1a 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 83

70 12 6a 02 00 03 00 3c 87 58 01 88 ff 0e 9f 00
2f 80 1f 00 6f 08 2c 00 02 00 04 00 6f 9d 01 08
ff 0e 9f 00 2f 80 1f 00 6f 08 2c 00 02 00 04 00
a1 ed 01 08 ff 0e b3 00 2f 80 1f 00 6f 08 16 00
01 00 01 00 01 03 0c 80 17 49 0d 00 0f 70 08 00
78 4d 00 07 00 0a 08 81 00 08 04 00 04 02 10 00
81 00 04 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 42 90

----------------

Block 0, Base EDID:
  EDID Structure Version & Revision: 1.4
  Vendor & Product Identification:
    Manufacturer: WAM
    Model: 10240
    Made in: week 45 of 2022
  Basic Display Parameters & Features:
    Digital display
    Bits per primary color channel: 10
    DisplayPort interface
    Maximum image size: 62 cm x 35 cm
    Gamma: 2.20
    DPMS levels: Off
    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
    Display supports continuous frequencies
  Color Characteristics:
    Red  : 0.6425, 0.3359
    Green: 0.3134, 0.6201
    Blue : 0.1513, 0.0527
    White: 0.3134, 0.3291
  Established Timings I & II:
    DMT 0x04:   640x480    59.940476 Hz   4:3     31.469 kHz     25.175000 MHz
    DMT 0x09:   800x600    60.316541 Hz   4:3     37.879 kHz     40.000000 MHz
    DMT 0x10:  1024x768    60.003840 Hz   4:3     48.363 kHz     65.000000 MHz
  Standard Timings:
    DMT 0x52:  1920x1080   60.000000 Hz  16:9     67.500 kHz    148.500000 MHz
    GTF     :  1680x945    59.999909 Hz  16:9     58.680 kHz    131.443000 MHz
    DMT 0x55:  1280x720    60.000000 Hz  16:9     45.000 kHz     74.250000 MHz
    DMT 0x53:  1600x900    60.000000 Hz  16:9     60.000 kHz    108.000000 MHz (RB)
  Detailed Timing Descriptors:
    DTD 1:  3840x2160   59.996625 Hz  16:9    133.312 kHz    533.250000 MHz (620 mm x 349 mm)
                 Hfront   48 Hsync  32 Hback   80 Hpol P
                 Vfront    3 Vsync   5 Vback   54 Vpol N
    Display Product Name: 'JM28EUI'
    Display Range Limits:
      Monitor ranges (Range Limits Only): 48-150 Hz V, 255-255 kHz H, max dotclock 1350 MHz
    Display Product Serial Number: ''
  Extension blocks: 2
Checksum: 0xb0

----------------

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: 2
  Video Data Block:
    VIC  97:  3840x2160   60.000000 Hz  16:9    135.000 kHz    594.000000 MHz
    VIC   1:   640x480    59.940476 Hz   4:3     31.469 kHz     25.175000 MHz
    VIC   2:   720x480    59.940060 Hz   4:3     31.469 kHz     27.000000 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  16:  1920x1080   60.000000 Hz  16:9     67.500 kHz    148.500000 MHz
    VIC  19:  1280x720    50.000000 Hz  16:9     37.500 kHz     74.250000 MHz
    VIC  31:  1920x1080   50.000000 Hz  16:9     56.250 kHz    148.500000 MHz
    VIC  32:  1920x1080   24.000000 Hz  16:9     27.000 kHz     74.250000 MHz
    VIC  33:  1920x1080   25.000000 Hz  16:9     28.125 kHz     74.250000 MHz
    VIC  34:  1920x1080   30.000000 Hz  16:9     33.750 kHz     74.250000 MHz
    VIC  60:  1280x720    24.000000 Hz  16:9     18.000 kHz     59.400000 MHz
    VIC  61:  1280x720    25.000000 Hz  16:9     18.750 kHz     74.250000 MHz
    VIC  62:  1280x720    30.000000 Hz  16:9     22.500 kHz     74.250000 MHz
    VIC  76:  1920x1080   60.000000 Hz  64:27    67.500 kHz    148.500000 MHz
    VIC  93:  3840x2160   24.000000 Hz  16:9     54.000 kHz    297.000000 MHz
    VIC  94:  3840x2160   25.000000 Hz  16:9     56.250 kHz    297.000000 MHz
    VIC  95:  3840x2160   30.000000 Hz  16:9     67.500 kHz    297.000000 MHz
    VIC  96:  3840x2160   50.000000 Hz  16:9    112.500 kHz    594.000000 MHz
  Video Capability Data Block:
    YCbCr quantization: Selectable (via AVI YQ)
    RGB quantization: Selectable (via AVI Q)
    PT scan behavior: Always Overscanned
    IT scan behavior: Always Overscanned
    CE scan behavior: Always Overscanned
  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
  Colorimetry Data Block:
    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: 98 (417.710 cd/m^2)
    Desired content max frame-average luminance: 98 (417.710 cd/m^2)
    Desired content min luminance: 0 (0.000 cd/m^2)
  Detailed Timing Descriptors:
    DTD 2:  1920x1080   60.000000 Hz  16:9     67.500 kHz    148.500000 MHz (620 mm x 349 mm)
                 Hfront   88 Hsync  44 Hback  148 Hpol P
                 Vfront    2 Vsync   5 Vback   38 Vpol N
    DTD 3:  2560x1440   59.950550 Hz  16:9     88.787 kHz    241.500000 MHz (620 mm x 349 mm)
                 Hfront   48 Hsync  32 Hback   80 Hpol P
                 Vfront    3 Vsync   5 Vback   33 Vpol N
Checksum: 0x83  Unused space in Extension Block: 45 bytes

----------------

Block 2, DisplayID Extension Block:
  Version: 1.2
  Extension Count: 0
  Display Product Type: Display panel or other transducer, LCD or PDP module, etc.
  Video Timing Modes Type 1 - Detailed Timings Data Block:
    DTD:  3840x2160  100.000000 Hz   0:0    220.500 kHz    882.000000 MHz (aspect undefined, no 3D stereo, preferred)
               Hfront   48 Hsync  32 Hback   80 Hpol P
               Vfront    3 Vsync   5 Vback   37 Vpol N
    DTD:  3840x2160  120.000000 Hz   0:0    264.600 kHz   1058.400000 MHz (aspect undefined, no 3D stereo)
               Hfront   48 Hsync  32 Hback   80 Hpol P
               Vfront    3 Vsync   5 Vback   37 Vpol N
    DTD:  3840x2160  144.000565 Hz   0:0    314.353 kHz   1263.700000 MHz (aspect undefined, no 3D stereo)
               Hfront   48 Hsync  32 Hback  100 Hpol P
               Vfront    2 Vsync   2 Vback   19 Vpol N
  Display Parameters Data Block (0x01):
    Image size: 601.6 mm x 340.1 mm
    Display native pixel format: 3840x2160
    Gamma: 2.20
    Aspect ratio: 1.77
    Dynamic bpc native: 1
    Dynamic bpc overall: 1
  Supported Timing Modes Type 1 - VESA DMT Timings Data Block:
    DMT 0x04:   640x480    59.940476 Hz   4:3     31.469 kHz     25.175000 MHz
    DMT 0x09:   800x600    60.316541 Hz   4:3     37.879 kHz     40.000000 MHz
    DMT 0x10:  1024x768    60.003840 Hz   4:3     48.363 kHz     65.000000 MHz
    DMT 0x1c:  1280x800    59.810326 Hz  16:10    49.702 kHz     83.500000 MHz
    DMT 0x23:  1280x1024   60.019740 Hz   5:4     63.981 kHz    108.000000 MHz
    DMT 0x33:  1600x1200   60.000000 Hz   4:3     75.000 kHz    162.000000 MHz
    DMT 0x3a:  1680x1050   59.954250 Hz  16:10    65.290 kHz    146.250000 MHz
    DMT 0x45:  1920x1200   59.884600 Hz  16:10    74.556 kHz    193.250000 MHz
  CTA-861 DisplayID Data Block:
  Unknown CTA-861 Data Block (tag 0x00, length 0):
  Unknown CTA-861 Data Block (tag 0x00, length 0):
  Unknown CTA-861 Data Block (tag 0x00, length 0):
  Unknown CTA-861 Data Block (tag 0x00, length 0):
  Checksum: 0x00 (should be 0x42)
Checksum: 0x90  Unused space in Extension Block: 15 bytes
=================
/sys/class/drm/card0-DP-2
EDID of '/sys/class/drm/card0-DP-2/edid' was empty.
=================
/sys/class/drm/card0-DP-3
EDID of '/sys/class/drm/card0-DP-3/edid' was empty.
=================
/sys/class/drm/card0-HDMI-A-1
EDID of '/sys/class/drm/card0-HDMI-A-1/edid' was empty.
=================
/sys/class/drm/card0-HDMI-A-2
EDID of '/sys/class/drm/card0-HDMI-A-2/edid' was empty.
=================
/sys/class/drm/card0-HDMI-A-3
EDID of '/sys/class/drm/card0-HDMI-A-3/edid' was empty.
=================
/sys/class/drm/card0-HDMI-A-4
EDID of '/sys/class/drm/card0-HDMI-A-4/edid' was empty.
=================

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#9 Yesterday 20:34:56

seth
Member
From: Don't DM me only for attention
Registered: 2012-09-03
Posts: 68,879

Re: Intel ARC A770 + 4K 144Hz monitor — only 60Hz

Block 2, DisplayID Extension Block:
  Version: 1.2
  Extension Count: 0
  Display Product Type: Display panel or other transducer, LCD or PDP module, etc.
  Video Timing Modes Type 1 - Detailed Timings Data Block:
    DTD:  3840x2160  100.000000 Hz   0:0    220.500 kHz    882.000000 MHz (aspect undefined, no 3D stereo, preferred)
               Hfront   48 Hsync  32 Hback   80 Hpol P
               Vfront    3 Vsync   5 Vback   37 Vpol N
    DTD:  3840x2160  120.000000 Hz   0:0    264.600 kHz   1058.400000 MHz (aspect undefined, no 3D stereo)
               Hfront   48 Hsync  32 Hback   80 Hpol P
               Vfront    3 Vsync   5 Vback   37 Vpol N
    DTD:  3840x2160  144.000565 Hz   0:0    314.353 kHz   1263.700000 MHz (aspect undefined, no 3D stereo)
               Hfront   48 Hsync  32 Hback  100 Hpol P
               Vfront    2 Vsync   2 Vback   19 Vpol N

The mode is there (2nd extension block)

seth wrote:

And also please test the situation on X11 and post your Xorg log, https://wiki.archlinux.org/title/Xorg#General (the entire log, the link is just to explain where to find it)

Might be an issue related to https://wiki.archlinux.org/title/Variab … rate#GNOME

    Display supports continuous frequencies

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#10 Today 00:47:46

pavelatl
Member
Registered: 2025-10-09
Posts: 5

Re: Intel ARC A770 + 4K 144Hz monitor — only 60Hz

seth wrote:

Might be an issue related to https://wiki.archlinux.org/title/Variab … rate#GNOME

    Display supports continuous frequencies

enabled VRR but it not helped

The mode is there (2nd extension block)

It means that EDID is ok?

seth wrote:

And also please test the situation on X11 and post your Xorg log, https://wiki.archlinux.org/title/Xorg#General (the entire log, the link is just to explain where to find it)

For a newbie like me this task was a hellll
i broke my GNOME trying to run it with X11, removed it completely. Installed XFCE4 to get this log https://0x0.st/KuFX.0.log

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#11 Today 07:50:13

seth
Member
From: Don't DM me only for attention
Registered: 2012-09-03
Posts: 68,879

Re: Intel ARC A770 + 4K 144Hz monitor — only 60Hz

You cannot run gnome w/ X11 since v49 and that was also not suggested - just *some* X11 session (openbox would have done)
You can also install multiple DEs and WMs next to each other and choose which to run.

The EDID is ok, and also picked up by the server but then ignores the modes > 600MHz
You can try to https://wiki.archlinux.org/title/Xrandr … esolutions

Modeline "3840x2160_100.00" 882.000  3840 3888 3920 4000  2160 2163 2168 2205  +HSync -VSync                              
Modeline "3840x2160_120.00" 1058.400  3840 3888 3920 4000  2160 2163 2168 2205  +HSync -VSync                             
Modeline "3840x2160_144.00" 1263.700  3840 3888 3920 4020  2160 2162 2164 2183  +HSync -VSync

but the output might turn off as a result (though the modes would rather likely get rejected or work)

However, first and foremost and because this is likely related to the arc coverage of the xe and i915 modules

[     7.786] Current Operating System: Linux DESKTOP-31337 6.14.4-arch1-2 #1 SMP PREEMPT_DYNAMIC Tue, 29 Apr 2025 09:23:13 +0000 x86_64

Why are you running an ancient kernel?

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