** Description changed: [ Impact ] - * On nvidia Jetson Orin platforms installed with Ubuntu for Jetson - classic server image, a connected monitor will not light up again after - a suspend-resume cycle + * On NVIDIA Jetson Orin platforms installed with candidate Ubuntu for + Jetson images (https://cdimage.ubuntu.com/nvidia-tegra/ubuntu- + server/jammy/daily-preinstalled/), a monitor connected to the + DisplayPort will not light up again after a suspend-resume cycle - * On these platforms, a monitor will not display any output if it is - connected after the system boots or when being disconnected and + * In the same configuration, a monitor will not display any output if + it is connected after the system boots or when being disconnected and reconnected while the system is running - * This will be fixed by adding the file /etc/modules-load.d/nvidia- + * These issues affect Ubuntu 22.04 certification on Jetson Orin + platforms. + + * This will be fixed by adding the file /etc/modules-load.d/nvidia- drm.conf that force-loads the nvidia-drm module. - *The module will also need to be loaded with the appropriate parameters - modeset=1 and fbdev=1 which will be the default starting with the tegra- - igx kernel 1019 + * The module will also need to be loaded with the appropriate + parameters modeset=1 and fbdev=1 which will be the default starting with + the tegra-igx kernel 1019 [ Test Plan ] - * Install an Ubuntu for Jetson image on a Tegra platform and make sure to install a kernel version >= 1019 from jammy-proposed if it's not already the case. Connect a monitor to the Displayport and boot up the system. Then disconnect and reconnect the monitor to observe that the terminal is showing up on the monitor again. - * With the monitor connected, run the following command and observe the - terminal showing up on the monitor again after a suspend-resume cycle: + * Install the candidate Ubuntu for Jetson image (https://cdimage.ubuntu.com/nvidia-tegra/ubuntu-server/jammy/daily-preinstalled/manual/ – build 20240919) on a Jetson AGX Orin + * Upgrade to latest packages, making particularly sure to install the latest jetson meta-package (apt install linux-nvidia-tegra-igx-jetson) and kernel package (1019 ABI or later) from jammy-updates + * Reboot the system without a monitor connected, connect a monitor, see that it doesn't show any video output + * Reboot the system with a monitor connected, see that it shows console output, trigger a suspend-resume cycle with the command below and see that video output is not coming back (you can connect over e.g. serial or SSH to confirm the system is truly back from suspend): + $ sudo rtcwake -m no -s 30 && sudo systemctl suspend - $ sudo rtcwake -m no -s 30 && sudo systemctl suspend + * Install nvidia-tegra-defaults from -proposed; NB: there are no noble + images, but it's fine to install the noble-proposed build on top of the + jammy image to confirm it will work properly after an upgrade + + * Rerun the above monitor testing instructions rebooting between tests + and confirm that console output works even when the monitor is plugged + after boot, or after a suspend-resume cycle [ Where problems could occur ] * No additional problems should happen as the nvidia-drm kernel module is usually automatically loaded with these parameters when it is pulled in by an X11 dependency. Nvidia releases 2 desktop images using that mechanism (Jetpack and BaseOS). This intends to fix the behavior on a Ubuntu server image. - * If a user installs this package on a different platform, running a + * If a user installs this package on a different platform, running a different kernel, the nvidia-drm kernel module will not be present and subsequently not loaded and therefore does not impact such systems. [ Other Info ] - * This is related to two internal bugs being discussed between - Canonical and Nvidia + * This is related to two private bugs being discussed between Canonical + and NVIDIA; because NVIDIA uses the kernel packages in their own Ubuntu- + based images, it's not possible to include this fix in the kernel + package itself as NVIDIA doesn't want nvidia-drm to be force loaded for + their usage - ProblemType: Bug - DistroRelease: Ubuntu 22.04 - Package: nvidia-tegra-defaults 1.3~22.04.2 - ProcVersionSignature: User Name 5.15.0-1019.19-nvidia-tegra-igx 5.15.163 - Uname: Linux 5.15.0-1019-nvidia-tegra-igx aarch64 - ApportVersion: 2.20.11-0ubuntu82.6 - Architecture: arm64 - CasperMD5CheckResult: unknown - CloudArchitecture: aarch64 - CloudID: nocloud - CloudName: unknown - CloudPlatform: nocloud - CloudSubPlatform: seed-dir (/var/lib/cloud/seed/nocloud) - Date: Thu Oct 24 13:14:55 2024 - Dependencies: - - ProcEnviron: - TERM=xterm-256color - PATH=(custom, no user) - XDG_RUNTIME_DIR=<set> - LANG=C.UTF-8 - SHELL=/bin/bash - SourcePackage: nvidia-tegra-defaults - UpgradeStatus: No upgrade log present (probably fresh install) + * See also https://discourse.ubuntu.com/t/changes-to-ubuntu-for-tegra- + kernel-metapackages-on-jetson-and-igx/48807 for current changes + affecting jetson kernel metapackages
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2085541 Title: [SRU] [nano] [agx] [nx] No video output after suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-tegra-defaults/+bug/2085541/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
