Hi, my monitor is connected to my Quadro FX 3800 with driver version 340. Now i would like to use a second monitor on my integrated Radeon HD 4200. There is no xorg.conf but only a xorg.conf.d folder with a file 90-xpra-virutal.conf. xrandr --auto does not detect the second monitor. Pleases can any…

Which distribution are you using? The 340 driver is out of support, so you won’t be able to use it with a 1.21 xorg server.

I’m running Ubuntu 20.04 and tried to install drivers 495, 470 and 390 but either driver is not loaded. After that there is only the option of using the manually installed driver and the options of the old 340 and nouveau are greyed out. With sudo ubuntu-drivers autoinstall i can go back to the unsu…

xrandr --setprovideroutputsource 1 0 && xrandr --auto Could not find provider with index 1

Please run nvidia-bug-report.sh as root and attach the resulting nvidia-bug-report.log.gz file to your post.

No access to /proc/driver/nvidia/./gpus/ nvidia-bug-report.log.gz (70.4 KB)

You now have driver v390 installed, that won’t work. Didn’t you have the 340 driver working before?

Why won’t the newer driver work? Yes i had the 340 driver before but you mentioned it’s unsupported now.

Second Monitor on internal graphic?

Graphics / Linux Linux

generix January 17, 2022, 7:31pm 6

Please check if this helps:
https://forums.developer.nvidia.com/t/solved-xrandr-1-5-with-setprovideroutputsource-failed-with-nvidia-driver-418-56-2-on-debian-quadro-p400/74241/10?u=generix

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Second Monitor on internal graphic?

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