[Bug 1716857] Re: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg
Closed due to no reply after 5 months. If anyone still experiences problems then please open new bugs for them using the 'ubuntu-bug' command. ** Changed in: nvidia-graphics-drivers-470 (Ubuntu) Status: Incomplete => Won't Fix ** Changed in: systemd (Ubuntu) Status: Incomplete => Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1716857 Title: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1716857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1716857] Re: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg
Can someone please retest on Ubuntu 21.10? http://cdimage.ubuntu.com/daily-live/current/ ** Changed in: nvidia-graphics-drivers-375 (Ubuntu) Status: Confirmed => Won't Fix ** Changed in: nvidia-graphics-drivers-418 (Ubuntu) Status: Confirmed => Won't Fix ** Changed in: nvidia-graphics-drivers-430 (Ubuntu) Status: Confirmed => Won't Fix ** Changed in: nvidia-graphics-drivers-435 (Ubuntu) Status: Confirmed => Won't Fix ** Changed in: systemd (Ubuntu) Status: Confirmed => Incomplete ** Also affects: nvidia-graphics-drivers-470 (Ubuntu) Importance: Undecided Status: New ** Changed in: nvidia-graphics-drivers-470 (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1716857 Title: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1716857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1716857] Re: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg
Test on Intel Tiger Lake platform with nvidia dGPU (N17S-G5 PCI\VEN_10DE_1C94). Distribution: Ubuntu Codename: focal kernel: 5.6.0-1018-oem NV driver: 440.100 nvidia_drm modeset=1 gdm3: 3.34.1-1ubuntu1 xserver-xorg-core: 2:1.20.8-2ubuntu2.1 The device can detect external 4K/UHD monitor sucessfully by HDMI or DP. It seems the original issue is not able to reproduce on this machine. However, the modeset has to be enabled for https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-390/+bug/1769857/comments/5, but it is disabled by default currently. ** Attachment added: "Attach my external monitors edid for reference" https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1716857/+attachment/5392513/+files/philips-edid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1716857 Title: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1716857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1716857] Re: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg
Another correction. For the one workaround, switching to discrete graphics in the BIOS only seemed to get past the initial gnome login. But resuming from DPMS off/suspend, the same error loop happens even when hybrid graphics is disabled in the BIOS. Even worse, seems hardware acceleration ends up being disabled: $ journalctl --no-hostname -b -p warning _COMM=gnome-shell -- Logs begin at Wed 2019-02-06 14:13:52 SAST, end at Sun 2020-05-03 16:09:45 SAST. -- May 03 14:51:40 org.gnome.Shell.desktop[2284]: glamor: 'wl_drm' not supported May 03 14:51:40 org.gnome.Shell.desktop[2284]: Missing Wayland requirements for glamor GBM backend May 03 14:51:40 org.gnome.Shell.desktop[2284]: Failed to initialize glamor, falling back to sw ... May 03 14:53:25 gnome-shell[6549]: setup_framebuffers: assertion 'width > 0' failed The "EGL failed to allocate resources" error stops happening probably because gnome-shell isn't even using hardware acceleration now. I've also disabled all gnome shell extensions to avoid noise/errors in the logs and will try weed out the problem better. I checked `grep -C2 -E '(EE)|(WW)' /var/log/Xorg.0.log` and things seem fine: [45.181] (II) NVIDIA dlloader X Driver 440.59 Thu Jan 30 01:08:17 UTC 2020 [45.181] (II) NVIDIA Unified Driver for all Supported NVIDIA GPUs -- [45.182] (II) LoadModule: "ramdac" [45.182] (II) Module "ramdac" already built-in [45.183] (WW) Falling back to old probe method for modesetting [45.183] (II) NVIDIA(0): Creating default Display subsection in Screen section "Default Screen Section" for depth/fbbpp 24/32 -- [46.392] (==) NVIDIA(0): Silken mouse enabled [46.392] (==) NVIDIA(0): DPMS enabled [46.393] (WW) NVIDIA(0): Option "PrimaryGPU" is not used [46.393] (II) Loading sub module "dri2" [46.393] (II) LoadModule: "dri2" Note, I've done no customisation to X config - trying to stick to defaults. xrandr confirms only one provider / hybrid is indeed off and Intel not in use: $ xrandr --listproviders Providers: number : 1 Provider 0: id: 0x218 cap: 0x1, Source Output crtcs: 4 outputs: 6 associated providers: 0 name:NVIDIA-0 I'm guessing the Lenovo P53 impliments a mux/switch to connect the laptop panel to the NVidia card so that Intel is disabled in this mode. And double checking, also no i915 modules are loaded: $ lsmod | grep '^drm' drm_kms_helper180224 1 nvidia_drm drm 491520 10 drm_kms_helper,nvidia_drm So there seems to be, on current Ubuntu 18.04.4 LTS (fully up to date as of today), a 4K / UHD 60Hz issue with Nvidia, as seen in X log [45.228] (II) NVIDIA GLX Module 440.59 Thu Jan 30 01:05:38 UTC 2020 Lastly, I think due to `needs_root_rights=yes` in /etc/X11/Xwrapper.config, X logs to /var/log/Xorg.0.log again instead of the X without root which used to log at ~/.local/share/xorg/Xorg.0.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1716857 Title: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1716857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1716857] Re: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg
Apologies, continuing the comment above (mistakenly posted when adding the log attachment). Let me retry. Failure loop observed: - Failed to blit shared framebuffer: EGL failed to allocate resources for the requested operation. - Failed to set CRTC mode 3840x2160: No such file or directory To summarise and share my experience of it on a Lenovo P53 and some quirks/workarounds: - `sudo ubuntu-drivers autoinstall` got Nvidia 440.59 drivers installed. - However, Nvidia modeset was not enabled as yet. $ sudo cat /sys/module/nvidia_drm/parameters/modeset N - Blank external screen occurs with modeset=0 (disabled) - Then, using `prime-select nvidia`, I tried to ensure nvidia was primary - `prime-select nvidia` sets `options nvidia-drm modeset=1` but it's not effective, even after I rebooted ~$ cat /lib/modprobe.d/nvidia-kms.conf # This file was generated by nvidia-prime # Set value to 0 to disable modesetting options nvidia-drm modeset=1 - To make it effective, because modeset is done during initramfs part of boot, I ran `sudo update-initramfs -u -k all`. - It seems the prime-select option fails to trigger a intiramfs update (probably should be filed as a separate bug) - Regardless, the blank screen issue occured on my Lenovo P53 with or without Nvidia KMS modeset enabled - But one benefit of KMS modeset for Nvida is now the external display gets properly recognised. /sys/class/drm/card1-HDMI-A-1/ now exists (was missing with Ubuntu 18.04.4 LTS default proprietary install) including the EDID data being read properly and X getting the actual DPI of the screen correctly. Without nvidia modeset, as seen in `journalctl -b _COMM=gdm-x-session | grep -C2 -E '(EE)|(WW)'`: (WW) NVIDIA(0): Unable to get display device for DPI computation. With nvidia modeset: (II) NVIDIA(0): Validated MetaModes: (II) NVIDIA(0): "DFP-3:nvidia-auto-select" (II) NVIDIA(0): Virtual screen size determined to be 3840 x 2160 (--) NVIDIA(0): DPI set to (139, 140); computed from "UseEdidDpi" X config I've also found two workarounds to my issue. 1. Run a script that sets the frequency to 30HZ and then back to 60HZ 2. Switch to discrete only graphics in the BIOS In most cases, when one is using a 2nd display, there's usually a powersource available so the complexity of hybrid graphics isn't worth it and I went with simply disabling hybrid graphics in the BIOS. It's quite interesting that toggling the display refresh rate down to 30HZ and then back up to 60HZ seems to work around the problem of gnome- shell mutter's "EGL failed to allocate resources for the requested operation" bug. To conclude, even with the root access workaround in place: $ tail -n 2 /etc/X11/Xwrapper.config # Added by xserver-xorg-video-nvidia-440 needs_root_rights=yes I still had external display connection issues with 4K 60Hz. This might need to be logged as different bug? I'm unsure it's GDM3s fault given the root workaround was in place, but it's highly related/similar. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1716857 Title: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1716857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1716857] Re: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg
Here's the script I run to workaround the intital failure of gnome to use the external display after unlocking or resuming from DPMS suspend/off. ** Attachment added: "fix-hdmi-uhd.sh" https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1716857/+attachment/5365719/+files/fix-hdmi-uhd.sh -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1716857 Title: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1716857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1716857] Re: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg
Hi, thanks to everyone, especially Daniel for unpacking this issue. I have had a very similar issue, where gnome shell fails to run my external 4K/UHD display at 60HZ and I see the following failure loop triggered in `journalctl -b -p warning _COMM=gnome-shell`: May 02 20:39:38 JNBA434499PLL gnome-shell[1957]: Failed to blit shared framebuffer: EGL failed to allocate resources for the requested operation. May 02 20:39:38 JNBA434499PLL gnome-shell[1957]: Failed to set CRTC mode 3840x2160: No such file or directory May 02 20:39:38 JNBA434499PLL gnome-shell[1957]: Failed to flip: Device or resource busy May 02 20:39:38 JNBA434499PLL gnome-shell[1957]: Failed to set CRTC mode 3840x2160: No such file or directory May 02 20:39:38 JNBA434499PLL gnome-shell[1957]: Failed to blit shared framebuffer: EGL failed to allocate resources for the requested operation. May 02 20:39:38 JNBA434499PLL gnome-shell[1957]: Failed to set CRTC mode 3840x2160: No such file or directory May 02 20:39:38 JNBA434499PLL gnome-shell[1957]: Failed to blit shared framebuffer: EGL failed to allocate resources for the requested operation. May 02 20:39:38 JNBA434499PLL gnome-shell[1957]: Failed to set CRTC mode 3840x2160: No such file or directory ... While not sure it's exactly the same, it should still inform the overall discussion about dealing with GDM3 + Mutter + proprietary Nvidia drivers modeset problems. To summarise and share my experience of it on a Lenovo P53 and some quirks/workarounds: - `sudo ubuntu-drivers autoinstall` got Nvidia 440.59 drivers installed. - However, Nvidia modeset was not enabled as yet. $ sudo cat /sys/module/nvidia_drm/parameters/modeset N - - Using prime-select - For laptops like mine, seems the external port is connected to the Nvidia GPU. - Using the proprietary Nvidia drivers seems to then bump into a ** Attachment added: "gnome-shell_journal_warnings_egl_resource_failed.txt" https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1716857/+attachment/5365716/+files/gnome-shell_journal_warnings_egl_resource_failed.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1716857 Title: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1716857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1716857] Re: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg
I've added systemd to the bug because that seems to be involved in device permissions, as well as proving useful in the above comments. ** Also affects: systemd (Ubuntu) Importance: Undecided Status: New ** Changed in: systemd (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1716857 Title: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1716857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1716857] Re: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg
** Summary changed: - nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg, Pop!OS fix works. + nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1716857 Title: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1716857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1716857] Re: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg, Pop!OS fix works.
@Alberto, couldn't prime-select do this when going into hybrid or Optimus mode? Only users with nvidia hybrid graphics would go down this logic path, and they are only ones who need the fix (but only if they are using gdm3, sddm and lightdm continue to be unaffected by this) The set of users who "need" this fix are gdm3 users with hybrid Nvidia graphics (where "need" = want tear-free graphics on their laptop panel if Optimus, or on all displays if it's something like a T-series Thinkpad where the nvidia card has no direct access to any display). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1716857 Title: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg, Pop!OS fix works. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1716857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1716857] Re: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg, Pop!OS fix works.
Is it a kernel, systemd or Nvidia issue to get the right device nodes exposed here? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1716857 Title: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg, Pop!OS fix works. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1716857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1716857] Re: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg, Pop!OS fix works.
I think forcing all users (even on systems that don't use the NVIDIA driver) to run X with root privileges would be a little heavy-handed. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1716857 Title: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg, Pop!OS fix works. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1716857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1716857] Re: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg
This bug persists in 20.04 daily. The one-line Pop!OS solution (https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1716857/comments/26) works, just logout and login. Pop!OS has used this for several releases now, just saying. ** Summary changed: - nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg + nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg, Pop!OS fix works. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1716857 Title: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg, Pop!OS fix works. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1716857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1716857] Re: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg
I confirm Xwrapper root rights worked for me too. Ubuntu 18.04 kernel: 5.3.x and 4.15.x Nvidia driver: 435.21 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1716857 Title: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1716857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1716857] Re: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg
** Also affects: nvidia-graphics-drivers-430 (Ubuntu) Importance: Undecided Status: New ** Changed in: nvidia-graphics-drivers-430 (Ubuntu) Status: New => Confirmed ** Also affects: nvidia-graphics-drivers-435 (Ubuntu) Importance: Undecided Status: New ** Changed in: nvidia-graphics-drivers-435 (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1716857 Title: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1716857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1716857] Re: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg
I just installed popOS 19.10 an an Optimus laptop, nvidia option. Out of the box you get gdm3 and tear-free prime-sync; it uses Jeremy Soller's solution (root rights granted in Xwrapper) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1716857 Title: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1716857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1716857] Re: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg
Jeremy Soller's fix to edit Xwrapper seems to be good. The edits to the gdm service cause a crash to happen on boot. Currently using an HP Laptop with an Intel CPU and Nvidia GPU that I believe is Optimus. I have the proprietary Nvidia driver running on nvidia-driver-430 as of this comment's date. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1716857 Title: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1716857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1716857] Re: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg
And PS: workaround continues to be: use lightdm, a five minute fix at worst. https://askubuntu.com/questions/139491/how-to-change-from-gdm-to-lightdm -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1716857 Title: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1716857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1716857] Re: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg
19.10 beta and nvidia drivers 430 and 435 have the same problem. I have made the bug title correctly specific. ** Summary changed: - nvidia-drm.modeset=1 results in no monitors detected by Xorg + nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1716857 Title: nvidia-drm.modeset=1, gdm3 and optimus laptop results in no external monitors detected by Xorg To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1716857/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
