Another thing to try: Change to "on-demand" mode. (I'm not sure, but this may require another reboot or log out): sudo prime-select on-demand
Verification (first command should show AMD and second command Nvidia): glxinfo -B __NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia glxinfo -B If all goes well, you can run programs on the Nvidia GPU by by setting the variables as in the previous command. Or, if you don't want to type all that every time, you can make a new command. Note that this long command is all one line: alias prime_run=__NV_PRIME_RENDER_OFFLOAD=1 __VK_LAYER_NV_optimus=NVIDIA_only __GLX_VENDOR_LIBRARY_NAME=nvidia To make the alias permanent, add the line to the end of ~/.bashrc file -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1894852 Title: Graphics slow on hybrid AMD/Nvidia laptop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1894852/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
