Nvidia 430.26 behaves a bit differently. It just fails to start as non- root and gives reasons:
[ 897.467] xf86EnableIOPorts: failed to set IOPL for I/O (Operation not permitted) ... [ 897.470] (EE) NVIDIA: Failed to initialize the NVIDIA kernel module. Please see the [ 897.470] (EE) NVIDIA: system's kernel log for additional error messages and [ 897.470] (EE) NVIDIA: consult the NVIDIA README for details. [ 897.470] (EE) NVIDIA: Failed to initialize the NVIDIA kernel module. Please see the [ 897.470] (EE) NVIDIA: system's kernel log for additional error messages and [ 897.470] (EE) NVIDIA: consult the NVIDIA README for details. [ 897.470] (EE) [drm] Failed to open DRM device for (null): -2 [ 897.470] (EE) [drm] Failed to open DRM device for pci:0000:01:00.0: -2 So then the NVIDIA driver gives up and Xorg tries the modeset driver instead. Modeset seems to detect my monitor fine (got the EDID) but then fails with bug 1813897. This is now a bit off-topic, but I suspect the above problem with nvidia-430 will have the same fix as this bug. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-375 in Ubuntu. https://bugs.launchpad.net/bugs/1716857 Title: nvidia-drm.modeset=1 results in no monitors detected by Xorg Status in gdm3 package in Ubuntu: Invalid Status in mutter package in Ubuntu: Invalid Status in nvidia-graphics-drivers-375 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-418 package in Ubuntu: Confirmed Bug description: Context: 17.10 development packages, nvidia binary driver 375, modeset=1 for the nvidia driver. ubuntu desktop (gnome shell), fresh install ThinkPad W520 in Nvidia Optimus bios mode. Nvidia profile. Result: no external monitors are detected. xrandr does not even list them as disconnected (normally it would list five external disconnected monitors) lsmod shows that nvidia driver is loaded and the modesetting is working at some level because there is no tearing on the laptop panel Note: modeset=1 is the only way to get flicker-free graphics on the laptop panel. modeset=1 is not the default setting but it is highly desirable. It works if lightdm is used which is why I have reported this against gdm3 My sessions in this configuration have mostly crashed after a few minutes with a gdm3 fail whale message in syslog but nothing else looks interesting. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1716857/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
