** Description changed: An issue has come up with MI300 OEM deployments where, due to the current limit of 64 drm device nodes in the kernel, MI300 systems with an integrated display (e.g., mgag200 or ast) fail to light up the console because the AMD GPU driver has used up all of the drm device nodes. A patch set recently landed in drm-misc to extend the number of device nodes. These are the relevant commits: * https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=5fbca8b48b3050ae7fb611a8b09af60012ed6de1 ("drm: Use XArray instead of IDR for minors") * https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=45c4d994b82b08f0ce5eb50f8da29379c92a391e ("accel: Use XArray instead of IDR for minors") * https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=071d583e01c88272f6ff216d4f867f8f35e94d7d ("drm: Expand max DRM device number to full MINORBITS") + + When enabled, additional drm devices will become available: + ``` + root123@g593-sx1:~$ ls -l /sys/class/drm/ + lrwxrwxrwx 1 root root 0 Sep 21 00:55 card10 -> ../../devices/platform/amdgpu_xcp_7/drm/card10 + lrwxrwxrwx 1 root root 0 Sep 21 00:55 card11 -> ../../devices/platform/amdgpu_xcp_8/drm/card11 + lrwxrwxrwx 1 root root 0 Sep 21 00:55 card12 -> ../../devices/platform/amdgpu_xcp_9/drm/card12 + lrwxrwxrwx 1 root root 0 Sep 21 00:55 card13 -> ../../devices/platform/amdgpu_xcp_10/drm/card13 + lrwxrwxrwx 1 root root 0 Sep 21 00:55 card14 -> ../../devices/platform/amdgpu_xcp_11/drm/card14 + lrwxrwxrwx 1 root root 0 Sep 21 00:55 card15 -> ../../devices/platform/amdgpu_xcp_12/drm/card15 + lrwxrwxrwx 1 root root 0 Sep 21 00:55 card16 -> ../../devices/platform/amdgpu_xcp_13/drm/card16 + ... + ```
** Also affects: linux-oem-6.11 (Ubuntu) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Noble) Importance: Undecided Status: New ** Also affects: linux-oem-6.11 (Ubuntu Noble) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Oracular) Importance: Undecided Status: Incomplete ** Also affects: linux-oem-6.11 (Ubuntu Oracular) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Noble) Status: New => Invalid ** Changed in: linux (Ubuntu Oracular) Status: Incomplete => Confirmed ** Changed in: linux-oem-6.11 (Ubuntu Noble) Status: New => Triaged ** Changed in: linux-oem-6.11 (Ubuntu Oracular) Status: New => Invalid -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2078773 Title: Unable to use AMD Instinct MI300 with integrated display Status in HWE Next: New Status in linux package in Ubuntu: Confirmed Status in linux-oem-6.11 package in Ubuntu: Invalid Status in linux source package in Noble: Invalid Status in linux-oem-6.11 source package in Noble: Triaged Status in linux source package in Oracular: Confirmed Status in linux-oem-6.11 source package in Oracular: Invalid Bug description: An issue has come up with MI300 OEM deployments where, due to the current limit of 64 drm device nodes in the kernel, MI300 systems with an integrated display (e.g., mgag200 or ast) fail to light up the console because the AMD GPU driver has used up all of the drm device nodes. A patch set recently landed in drm-misc to extend the number of device nodes. These are the relevant commits: * https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=5fbca8b48b3050ae7fb611a8b09af60012ed6de1 ("drm: Use XArray instead of IDR for minors") * https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=45c4d994b82b08f0ce5eb50f8da29379c92a391e ("accel: Use XArray instead of IDR for minors") * https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=071d583e01c88272f6ff216d4f867f8f35e94d7d ("drm: Expand max DRM device number to full MINORBITS") When enabled, additional drm devices will become available: ``` root123@g593-sx1:~$ ls -l /sys/class/drm/ lrwxrwxrwx 1 root root 0 Sep 21 00:55 card10 -> ../../devices/platform/amdgpu_xcp_7/drm/card10 lrwxrwxrwx 1 root root 0 Sep 21 00:55 card11 -> ../../devices/platform/amdgpu_xcp_8/drm/card11 lrwxrwxrwx 1 root root 0 Sep 21 00:55 card12 -> ../../devices/platform/amdgpu_xcp_9/drm/card12 lrwxrwxrwx 1 root root 0 Sep 21 00:55 card13 -> ../../devices/platform/amdgpu_xcp_10/drm/card13 lrwxrwxrwx 1 root root 0 Sep 21 00:55 card14 -> ../../devices/platform/amdgpu_xcp_11/drm/card14 lrwxrwxrwx 1 root root 0 Sep 21 00:55 card15 -> ../../devices/platform/amdgpu_xcp_12/drm/card15 lrwxrwxrwx 1 root root 0 Sep 21 00:55 card16 -> ../../devices/platform/amdgpu_xcp_13/drm/card16 ... ``` To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/2078773/+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