apport information ** Tags added: apport-collected
** Description changed: In a recent driver, Nvidia finally added Linux support for render offload, where most graphics are rendered on the CPU-onboard GPU and only certain applications are rendered on the discrete Nvidia GPU. I know that Ubuntu 19.10 started shipping some updated Xorg packages to support this. For the most part the mode seems to work great. On my laptop, however, I have found that the "on demand" mode does not detect external monitors (and the monitor says it is not receiving a signal). Switching to "Nvidia" mode, where everything is rendered on the discrete GPU, makes the external displays work. The laptop is a Lenovo Thinkpad X1 Extreme (Gen 1). I have found this occurs both with nvidia- graphics-drivers-435 and nvidia-graphics-drivers-440 in the "graphics- drivers" ppa. ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: nvidia-driver-435 435.21-0ubuntu2 ProcVersionSignature: Ubuntu 5.3.0-19.20-generic 5.3.1 Uname: Linux 5.3.0-19-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu8 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Mon Oct 21 13:17:38 2019 InstallationDate: Installed on 2019-09-04 (47 days ago) InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416) ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: nvidia-graphics-drivers-435 UpgradeStatus: Upgraded to eoan on 2019-10-21 (0 days ago) + --- + ProblemType: Bug + ApportVersion: 2.20.11-0ubuntu8 + Architecture: amd64 + DistroRelease: Ubuntu 19.10 + InstallationDate: Installed on 2019-09-04 (47 days ago) + InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416) + NonfreeKernelModules: nvidia_modeset nvidia + Package: nvidia-driver-435 435.21-0ubuntu2 + PackageArchitecture: amd64 + ProcEnviron: + TERM=xterm-256color + PATH=(custom, no user) + LANG=en_US.UTF-8 + SHELL=/bin/bash + ProcVersionSignature: Ubuntu 5.3.0-19.20-generic 5.3.1 + Tags: eoan third-party-packages + Uname: Linux 5.3.0-19-generic x86_64 + UpgradeStatus: Upgraded to eoan on 2019-10-21 (0 days ago) + UserGroups: + + _MarkForUpload: True ** Attachment added: "Dependencies.txt" https://bugs.launchpad.net/bugs/1849214/+attachment/5299050/+files/Dependencies.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1849214 Title: "nvidia on-demand" mode does not support external displays To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-435/+bug/1849214/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
