how to use another computer as a second monitor dell hdmi

I use two 1080p external monitors one connected to the HDMI port and one connected through a USB-C hub. I have an MSI Prestige 15.6' Laptop with a GeForce GTX 1650 Mobile / Max-Q graphics card and a built-in Intel vga controller. This problem reappears regularly (often after rebooting after updates) for me, so I am keeping the solutions that worked for me here. Hopefully a combination of these should solve your problem. GRUB_CMDLINE_LINUX_DEFAULT='quiet splash nomodeset' Set options nvidia-drm modeset=0 in /lib/modprobe.d/nf and run sudo update-initramfs -u then rebootĮdit line GRUB_CMDLINE_LINUX_DEFAULT in file /etc/default/grub to remove nomodeset in for example: Make sure /etc/X11/nfig contains the line: Very important: for the above to work to work, you need to either first disable secure-boot or make sure that on the next boot you do not simply boot normally but rather you accept the mok/lok key first. The above ended up installing nvidia-driver-510 for me. Sudo add-apt-repository ppa:graphics-drivers It also fails with linux kernel 5.13.0-30 but works with kernel 5.13.0-28 for some weird reason: I personally needed to a combination of many of the other answers for it to work for me on Ubuntu 20.04.4 LTS on a Lenovo Legion with AMD with radeon graphics card and Nvidia gpu. However, upon reboot, Ubuntu displayed my driver settings as using a 'manually installed driver', and won't let me change it: When the external display problem first arose, my initial attempt was to switch back to the open source Xorg drivers. I have an nvidia graphics card, and before the update I was using proprietary drivers. There is a monitor plugged in and ready for use, and nothing I do seems to cause it to be detected. My main concern is the final line: HDMI-1-1 disconnected. HDMI-1-1 disconnected (normal left inverted right x axis y axis) Even when plugged in, the 'detect displays' button within the default settings app doesn't do anything.

After upgrading to Ubuntu 18.04, my laptop has been unable to detect/use an external monitor attached via HDMI.

How to use another computer as a second monitor dell hdmi