Cannot use native WQHD resolution

Hi there,

I search a lot before create my thread but this bothers me a lot.

I have an Asus rog g501vw with Windows and Fedora 37 in dual boot. In F37 it works perfectly, except when I connect an external monitor (Monitor Gaming Mi Curved 34) it only recognizes 16:9 formats.
The monitor works fine on Windows.

With the help of the xrandr tool I can get to the resolution 3000x1256 (by try and error) but when I increase the width to 3440 I get the error:

xrandr --output HDMI-1-1 --mode 3440x1440_50.00 --verbose
screen 0: 9840x2880 1735x507 mm 144.03dpi
crtc 0: 3440x1440_50.00  50.00 +0+0 "HDMI-1-1"
xrandr: Configure crtc 0 failed
crtc 0: disable
crtc 1: disable
crtc 2: disable
screen 0: revert
crtc 0: revert
crtc 1: revert
crtc 2: revert

I’ve followed the fedora guides to force the use of my dedicated graphics to try to achieve better results, but without success.

Does anyone have any ideas?

Thank you for your time

After more try and fail testes I has able to use the full WQHD resolution :slight_smile:

But I cannot past the refresh rate of 40.

Right now my /etc/X11/xorg.conf.d/10-monitor.conf is:

Section "Monitor"
        Identifier "HDMI-1-1"
        Modeline "3440x1440_40.00"  269.62  3440 3640 4008 4576  1440 1441 1444 1473  -HSync +Vsync

I can see the lag in rendering but it’s better than the faulty resolution I had previously.

Anyway if anyone knows a way to increase the refresh rate I would appreciate it :wink:

Welcome @tiagomistral to ask :fedora:

There are at least 2 hardware factors involved there.
The monitor is certainly one, but the GPU is also critical in the resolution and refresh rate. Both must be able to cleanly support the desired resolution and refresh.

I know that you said that in windows it works fine, but a 3rd (software) factor that is critical is the driver for the GPU and to enable higher resolution + refresh the driver must manage the GPU properly. What is possible with windows is not always possible in Linux, even with the same hardware, because of drivers.

Thanks for the feedback @computersavvy

Do you think I should try to somehow update the drivers for my integrated graphics (Intel Corporation HD Graphics 530)?