Arch Linux

screenfixtv

Member

Registered: 2023-12-25

Posts: 6

[SOLVED] Xrandr refresh rate 60Hz for 4k TV

Hello,

I installed Arch via the archinstall script.

Is there a way to get a 4k 50/60Hz picture from my laptop (GPU: Nvidia 950M) to my 4k TV (Model: UE43AU7092UXXH).
I am using a (HDMI: AK-330107-010-S) cable as the connector.

Output of xrandr:

Screen 0: minimum 320 x 200, current 3840 x 2160, maximum 16384 x 16384
HDMI-1 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 1872mm x 1053mm
   4096x2160     30.00    24.00    29.97    23.98
   3840x2160     30.00*   25.00    24.00    29.97    23.98
   2560x1440     59.95
   1920x1080     60.00    50.00    59.94    30.00    25.00    24.00    29.97    23.98
   1920x1080i    60.00    50.00    59.94
   1680x1050     59.88
   1600x900      60.00
   1280x1024     75.02    60.02
   1440x900      59.90
   1280x800      59.91
   1152x864      75.00
   1280x720      60.00    50.00    59.94
   1024x768      75.03    70.07    60.00
   832x624       74.55
   800x600       72.19    75.00    60.32
   720x576       50.00
   720x576i      50.00
   720x480       60.00    59.94
   720x480i      60.00    59.94
   640x480       75.00    72.81    66.67    60.00    59.94
   720x400       70.08
DP-1 disconnected (normal left inverted right x axis y axis)

I removed the newly added modes before I printed this.

I followed this section https://wiki.archlinux.org/title/xrandr … esolutions and got the result xrandr: Configure crtc 0 failed

Output of lspci -knn | grep -iA3 'vga\|3d\|display':

00:02.0 VGA compatible controller [0300]: Intel Corporation HD Graphics 530 [8086:191b] (rev 06)
    Subsystem: ASUSTeK Computer Inc. HD Graphics 530 [1043:1130]
    Kernel driver in use: i915
    Kernel modules: i915
--
01:00.0 3D controller [0302]: NVIDIA Corporation GM107M [GeForce GTX 950M] [10de:139a] (rev a2)
    Subsystem: ASUSTeK Computer Inc. GM107M [GeForce GTX 950M] [1043:1130]
    Kernel driver in use: nvidia
    Kernel modules: nouveau, nvidia_drm, nvidia

Anyone know what could be the problem ?

Last edited by screenfixtv (2024-01-10 18:32:31)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,232

Re: [SOLVED] Xrandr refresh rate 60Hz for 4k TV

The cable. For this to work with HDMI you need a special version of cable, you'll have generally more luck with DP.

https://en.wikipedia.org/wiki/HDMI#Refr … dard_video

Either "Ultra high speed" that I doubt a GPU this old properly supports or with a limited color band "Premium High Speed"

And seeing that lspci output, your nvidia card is irrelevant and everything hinges on the integrated GPU, which will likely be somewhat weak in general, don't get your hopes up.

Did you try the reduced blanking options in: https://wiki.archlinux.org/title/Xrandr#Screen_blinking ?

Last edited by V1del (2023-12-25 00:58:54)

screenfixtv

Member

Registered: 2023-12-25

Posts: 6

Re: [SOLVED] Xrandr refresh rate 60Hz for 4k TV

I use prime-run when I want to run any demanding applications.

About the mentioned section its the same output. I'll try to find a better HDMI cable and see if it's the cause of it.

Last edited by screenfixtv (2023-12-25 01:08:29)

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 76,048

Re: [SOLVED] Xrandr refresh rate 60Hz for 4k TV

I use prime-run when I want to run any demanding applications.

Yes, but the output is wired to the intel chip and that's the only thing that matters wrt the subject of this thread.

https://ark.intel.com/content/www/us/en … 0-ghz.html
"Max Resolution (HDMI): 4096x2304@24Hz" is HDMI 1.4b so you can forget about the cable upgrade in this case.
But "Max Resolution (DP): 4096x2304@60Hz"

you'll have … more luck with DP

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