Nouveau-driver, no HDMI output

Hi EndeavourOS Forum,
just installed the latest greatest EndeavourOS on my old HP 8710w with the Nvidia FX 1600M. The native driver for the graphics card (340.xxx) is no more supported, so the Nouveau driver is in use. Unfortunately I cannot bring my HDMI(-1) monitor to live

lspci -k | grep -A 2 -i “VGA”
01:00.0 VGA compatible controller: NVIDIA Corporation G84GLM [Quadro FX 1600M] (rev a1)
Subsystem: Hewlett-Packard Company G84GLM [Quadro FX 1600M]
Kernel driver in use: nouveau
xrandr
Screen 0: minimum 320 x 200, current 1920 x 1200, maximum 8192 x 8192
LVDS-1 connected primary 1920x1200+0+0 (normal left inverted right x axis y axis) 367mm x 230mm
1920x1200 59.95*+ 59.88
1920x1080 60.01 59.97 60.00 59.96 59.93
1600x1200 60.00 59.95

320x240 60.05
360x202 59.51 59.13
320x180 59.84 59.32
VGA-1 disconnected (normal left inverted right x axis y axis)
DVI-D-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 disconnected (normal left inverted right x axis y axis)

xrandr --listmonitors
Monitors: 1
0: +*LVDS-1 1920/367x1200/230+0+0 LVDS-1

One of the things I tried was

xrandr --output HDMI-1 --auto
nothing happens, no switching no error

Any chances to get the HDMI monitor back to work?

Or is there a chance to get the “Nvidia 340.108” driver back into play? I came along https://aur.archlinux.org/packages/nvidia-340xx with patch for kernel 6.5 . What are the steps to to build/apply this module?

Thx
-Clemens

Welcome to the :enos: forum!

Try dkms version for Nvidia 340.108.
https://aur.archlinux.org/packages/nvidia-340xx-dkms

yay -S nvidia-340xx-dkms

That did it!
Thanks a lot

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