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#1 2023-01-12 08:18:39

Efka
Member
From: Kaunas
Registered: 2014-04-27
Posts: 65
Website

[SOLVED] No display detected when changing refresh rate to 144/120 hz

Hey guys, im having some issues with my current setup.
GPU: nvidia 3070ti
Xorg, qtile, nvidia ( pacman -S nvidia)
I have 4k 144hz monitor and trying to set 144hz / 120Hz ( hdmi 2.1 ) but once i do - i get blank screen and monitor shows me -  No signal detected.
Had some issues with qtile and wayland - it starts but screen blinks, nvidia-settings shows 0 options for X Server Display Configuration and no mouse pointer detected, so switched to Xorg and qtile.
Fresh Arch Linux install.
Also i have enabled drm in my grub config file , removed kms from /etc/mkinitcpio.conf.

Quick edit/update:

if i lover my res to 1440p - i can use 144 or 120Hz so i have a question - Is there some sort of issue with HDMI and nVidia in Arch or ( Linux ) in general ? Im sure if i change my hdmi cable to DP cable it will work ...

EDIT #2: Fixed. Connected to DP.

Last edited by Efka (2023-01-12 09:18:00)


IBM Lenovo ThinkPad T61 ; Lenovo ThinkPad X220; Lenovo ThinkPad T440p; Lenovo Thinkpad W520; Lenovo Thinkpad P71; ThinkPad X1 Yoga Gen1;  FrankenPad T25
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#2 2023-01-12 09:09:01

seth
Member
Registered: 2012-09-03
Posts: 36,731

Re: [SOLVED] No display detected when changing refresh rate to 144/120 hz

Cable.

edid-decode /sys/class/drm/card0-HDMI0/edid # replace HDMI0 w/ the actual output

You need DSC 1.2 support for this.
Cable.

xrandr --verbose

Also cable.

Does the monitor have a displayport input?
Did I mention the cable? (needs to be "HDMI Premium High Speed mit Ethernet" or "HDMI Ultra High Speed")

Since ppl. seem to be casting 5+ m long HDMI cables through their living rooms: How long is the cable?

Edit:

Is there some sort of issue with HDMI

Yes. It's called "HDCP".
Also the cable grading is a complete mess.

Last edited by seth (2023-01-12 09:10:41)

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#3 2023-01-12 09:21:07

Efka
Member
From: Kaunas
Registered: 2014-04-27
Posts: 65
Website

Re: [SOLVED] No display detected when changing refresh rate to 144/120 hz

seth wrote:

Cable.

edid-decode /sys/class/drm/card0-HDMI0/edid # replace HDMI0 w/ the actual output

You need DSC 1.2 support for this.
Cable.

xrandr --verbose

Also cable.

Does the monitor have a displayport input?
Did I mention the cable? (needs to be "HDMI Premium High Speed mit Ethernet" or "HDMI Ultra High Speed")

Since ppl. seem to be casting 5+ m long HDMI cables through their living rooms: How long is the cable?

Edit:

Is there some sort of issue with HDMI

Yes. It's called "HDCP".
Also the cable grading is a complete mess.

Well i changed to DP so its working now .. but on windows works on HDMI cable ( its 2.1 hdmi cable  and its 2m long only)
Later i will run edid-decode command and let you know.


IBM Lenovo ThinkPad T61 ; Lenovo ThinkPad X220; Lenovo ThinkPad T440p; Lenovo Thinkpad W520; Lenovo Thinkpad P71; ThinkPad X1 Yoga Gen1;  FrankenPad T25
Asus Z10PE D-16 WS; 2x Intel Xeon E-5 2690V4; 32GB ECC; nVidia Titan V CEO | Asus ROG Gene XI Intel i9-9900k nVidia 3070Ti

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#4 2023-01-12 09:48:41

seth
Member
Registered: 2012-09-03
Posts: 36,731

Re: [SOLVED] No display detected when changing refresh rate to 144/120 hz

There is no "2.1 hdmi cable" - the bullshit marketing terms in #2 are the official grading and do not align with any protocol standard.
"complete mess"

but on windows

3rd link below. Mandatory read.

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#5 2023-01-12 10:00:42

Efka
Member
From: Kaunas
Registered: 2014-04-27
Posts: 65
Website

Re: [SOLVED] No display detected when changing refresh rate to 144/120 hz

seth wrote:

There is no "2.1 hdmi cable" - the bullshit marketing terms in #2 are the official grading and do not align with any protocol standard.
"complete mess"

but on windows

3rd link below. Mandatory read.


Understood. Yeah, im going to read it.
Thank You.


IBM Lenovo ThinkPad T61 ; Lenovo ThinkPad X220; Lenovo ThinkPad T440p; Lenovo Thinkpad W520; Lenovo Thinkpad P71; ThinkPad X1 Yoga Gen1;  FrankenPad T25
Asus Z10PE D-16 WS; 2x Intel Xeon E-5 2690V4; 32GB ECC; nVidia Titan V CEO | Asus ROG Gene XI Intel i9-9900k nVidia 3070Ti

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