Cant get my monitor working on 144hz

Hyurimaru · 2022-07-15 12:30:11

Hello,
My monitor/pc specs are: 3840x2160 144hz (Model:Viewsonic Elite XG320U), and the Gpu Rx 6900 Xt
Linux only detects up to 3840x2160 60hz, there are options for 120hz with 2560x1440 but I want to use my monitor in 4k.
I tried to add a newmode on xrandr like mentioned in here: https://wiki.archlinux.org/title/Xrandr … esolutions but it does not work. Im still stuck at 60hz.
Im using a display port 1.4 which support 4k 144hz.

Slithery · 2022-07-15 12:35:43

Hyurimaru wrote:

Im using a display port 1.4 which support 4k 144hz.

No, it doesn't.
https://en.wikipedia.org/wiki/DisplayPort#1.4

Hyurimaru · 2022-07-15 12:41:27

Slithery wrote:

Hyurimaru wrote:
Im using a display port 1.4 which support 4k 144hz.
No, it doesn't.
https://en.wikipedia.org/wiki/DisplayPort#1.4

Ok, i connected it via hdmi 2.1 instead. Managed to add it correctly this time. I only need to test it to see if i really get 144hz now.

Last edited by Hyurimaru (2022-07-15 12:52:54)

Hyurimaru · 2022-07-15 13:02:06

It switches back to 60hz whenever I try to use the new resolution i added.
Output of xrandr -q

Screen 0: minimum 320 x 200, current 3840 x 2160, maximum 16384 x 16384
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
3840x2160_120.00 59.98
DP-3 disconnected (normal left inverted right x axis y axis)
HDMI-1 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 708mm x 398mm
3840x2160 60.00*+ 60.00 50.00 48.00 59.94 47.95 59.97
3200x1800 59.96 59.94
2880x1620 59.96 59.97
2560x1600 59.99 59.97
2560x1440 119.88 59.99 59.96 59.95
2048x1536 85.00 75.00 60.00
1920x1440 85.00 75.00 60.00
1856x1392 75.00 60.01
1792x1344 75.00 60.01
2048x1152 59.99 59.98 59.90 59.91
1920x1200 59.88 59.95
1920x1080 60.01 120.00 100.00 119.88 59.97 59.96 60.00 60.00 59.94 59.93
1600x1200 85.00 75.00 70.00 65.00 60.00
1680x1050 59.95 59.88
1400x1050 74.76 59.98
1600x900 59.99 59.94 59.95 60.00 59.82
1280x1024 85.02 75.02 60.02
1440x900 59.90
1400x900 59.96 59.88
1280x960 85.00 60.00
1440x810 60.00 59.97
1368x768 59.88 59.85
1280x800 59.99 59.97 59.81 59.91
1152x864 75.00
1280x720 60.00 59.99 59.86 60.00 50.00 59.94 59.74
1440x576 50.00
1024x768 85.00 75.05 60.04 85.00 75.03 70.07 60.00
1024x768i 86.96
960x720 85.00 75.00 60.00
1440x480 60.00 59.94
928x696 75.00 60.05
896x672 75.05 60.01
1024x576 59.95 59.96 59.90 59.82
960x600 59.93 60.00
832x624 74.55
960x540 59.96 59.99 59.63 59.82
800x600 85.00 75.00 70.00 65.00 60.00 85.14 72.19 75.00 60.32 56.25
840x525 60.01 59.88
864x486 59.92 59.57
720x576 50.00
700x525 74.76 59.98
800x450 59.95 59.82
720x480 60.00 59.94
640x512 85.02 75.02 60.02
700x450 59.96 59.88
640x480 85.09 60.00 85.01 75.00 72.81 75.00 66.67 60.00 59.94
720x405 59.51 58.99
720x400 85.04 70.08
684x384 59.88 59.85
640x400 59.88 59.98 85.08
576x432 75.00
640x360 59.86 59.83 59.84 59.32
640x350 85.08
512x384 85.00 75.03 70.07 60.00
512x384i 87.06
512x288 60.00 59.92
416x312 74.66
480x270 59.63 59.82
400x300 85.27 72.19 75.12 60.32 56.34
432x243 59.92 59.57
320x240 85.18 72.81 75.00 60.05
360x202 59.51 59.13
360x200 85.04
320x200 85.27
320x180 59.84 59.32
320x175 85.27
3840x2160_144.00 143.94

Modline that i generated:

[maru@Hyuri ~]$ cvt 3840 2160 144
# 3840x2160 143.94 Hz (CVT) hsync: 338.25 kHz; pclk: 1829.25 MHz
Modeline "3840x2160_144.00" 1829.25 3840 4200 4624 5408 2160 2163 2168 2350 -hsync +vsync

And how i added it:

[maru@Hyuri ~]$ xrandr --newmode "3840x2160_144.00" 1829.25 3840 4200 4624 5408 2160 2163 2168 2350 -hsync +vsync
[maru@Hyuri ~]$ xrandr --addmode HDMI-1 "3840x2160_144.00"

Whenever i try to run this: [maru@Hyuri ~]$ xrandr --output HDMI-1 --mode 3840x2160_144.00

I get the following response: xrandr: Configure crtc 0 failed

Last edited by Hyurimaru (2022-07-15 13:08:33)

Hyurimaru · 2022-07-15 13:29:53

Update: I tried other hz rates to see if they work, failed to get 120hz and 144hz working (when i try to change to 144hz i get the xrandr: Configure crtc 0 failed error,
and when i try to create a newmode for 120hz i get the error :

X Error of failed request: BadName (named color or font does not exist)
Major opcode of failed request: 140 (RANDR)
Minor opcode of failed request: 16 (RRCreateMode)
Serial number of failed request: 41
Current serial number in output stream: 41

3840x2160 100hz worked on display port(gave crtc 0 failed error on hdmi 2.1) without any errors but monitor sometimes goes black for a second then comes back. (still 100hz)

Last edited by Hyurimaru (2022-07-15 13:33:28)

Hyurimaru · 2022-07-15 13:36:08

Is this has something to do with AMD drivers or do cables do not support it? Because when i was using WIndows 10 before, it worked perfectly fine after installing amd drivers, so i dont think problem is with the cables.

fistrosan · 2022-07-15 14:09:02

If you want the changes at 144 Hz to be persistent for future logins I think you need to create a file inside /etc/X11/xorg.conf.d/. You can name something like 10-monitor.conf and it should contain your preferred mode along these lines:

Section "Monitor"
	Identifier "HDMI-1" (???)
        Modeline "3840x2160_144.00"  1829.25  3840 4200 4624 5408  2160 2163 2168 2350 -hsync +vsync
	Option "PreferredMode" "3840x2160_144.00"
EndSection

where I have basically cut and paste the output of cvt for the new mode you want to create. That should make it start always under this mode everytime you logout/in or reboot. What out for the ??? because I don't know if that is correct (HDMI-1).

Edit: or you can just follow the wiki .... https://wiki.archlinux.org/title/Xrandr … esolutions

Last edited by fistrosan (2022-07-15 14:11:31)

seth · 2022-07-15 22:20:46

Please use code tags, not quote tags and post your xorg log.

You could test

% cvt12 3840 2160 144 -b
# 3840x2160 @ 144.000 Hz Reduced Blank (CVT) field rate 144.000 Hz; hsync: 333.216 kHz; pclk: 1306.21 MHz
Modeline "3840x2160_144.00_rb2"  1306.21  3840 3848 3880 3920  2160 2300 2308 2314 +hsync -vsync

but I'd not expect too much.

Because when i was using WIndows 10 before, it worked perfectly fine after installing amd drivers

w/ DP 1.4??
Are you maybe looking for https://wiki.archlinux.org/title/Variable_refresh_rate ?

Arch Linux

#1 2022-07-15 12:30:11

Cant get my monitor working on 144hz

#2 2022-07-15 12:35:43

Re: Cant get my monitor working on 144hz

#3 2022-07-15 12:41:27

Re: Cant get my monitor working on 144hz

#4 2022-07-15 13:02:06

Re: Cant get my monitor working on 144hz

#5 2022-07-15 13:29:53

Re: Cant get my monitor working on 144hz

#6 2022-07-15 13:36:08

Re: Cant get my monitor working on 144hz

#7 2022-07-15 14:09:02

Re: Cant get my monitor working on 144hz

#8 2022-07-15 22:20:46

Re: Cant get my monitor working on 144hz

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