Public bug reported: Systems with Optimus (Intel+NVIDIA GPUs) can have ghost VGA devices hardcoded in the BIOS. This leads the system into thinking that there is actually one more active output than there really is.
1) Ubuntu 16.04.3 LTS 2) nvidia-prime 0.8.2 3) When i enable PRIME Synchronization by set option options nvidia_390_drm modeset from '0' to '1' in /etc/modprobe.d/nvidia-graphics-drivers.conf and add option to grub nvidia-drm.modeset=1 and after reboot there only one active output in xrandr --verbose is LVDS. 4) When i enable PRIME Synchronization by set option options nvidia_390_drm modeset from '0' to '1' in /etc/modprobe.d/nvidia- graphics-drivers.conf and add option to grub nvidia-drm.modeset=1 and after reboot and here you go in xrandr --verbose there non-existent display detected VGA-0 (Ghost screen with wrong resolution 1360x768). it's same bug as here https://bugs.launchpad.net/ubuntu/+source/nvidia- prime/+bug/1296020 but on LTS version of ubuntu ** Affects: nvidia-prime (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 nvidia packaging xenial ** Attachment added: "xrandr.txt" https://bugs.launchpad.net/bugs/1749769/+attachment/5055935/+files/xrandr.txt -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-prime in Ubuntu. https://bugs.launchpad.net/bugs/1749769 Title: Nvidia-prime after enable PRIME Synchronization non-existent VGA device will show up in the output of xrandr and in Display manager Status in nvidia-prime package in Ubuntu: New Bug description: Systems with Optimus (Intel+NVIDIA GPUs) can have ghost VGA devices hardcoded in the BIOS. This leads the system into thinking that there is actually one more active output than there really is. 1) Ubuntu 16.04.3 LTS 2) nvidia-prime 0.8.2 3) When i enable PRIME Synchronization by set option options nvidia_390_drm modeset from '0' to '1' in /etc/modprobe.d/nvidia-graphics-drivers.conf and add option to grub nvidia-drm.modeset=1 and after reboot there only one active output in xrandr --verbose is LVDS. 4) When i enable PRIME Synchronization by set option options nvidia_390_drm modeset from '0' to '1' in /etc/modprobe.d/nvidia- graphics-drivers.conf and add option to grub nvidia-drm.modeset=1 and after reboot and here you go in xrandr --verbose there non-existent display detected VGA-0 (Ghost screen with wrong resolution 1360x768). it's same bug as here https://bugs.launchpad.net/ubuntu/+source /nvidia-prime/+bug/1296020 but on LTS version of ubuntu To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1749769/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
