Public bug reported: On the HiSilicon D05 (arm64) board, X crashes when started. [0]
The crash is attributable to the bus ID that the hibmc driver reports for the hibmc graphics card on the board. In particular, the bus id is missing the "pci:" prefix that most other cards provide: [1] - The busid reported on the arm64 system is "0007:a1:00.0" - The busid reported on a amd64 system is "pci:0000:00:02.0" X tests for this prefix. A missing prefix for PCI cards leads to an Xorg crash. A patch is attached, which prevents the crash. [2][3] I submitted the patch upstream. However, upstream is refactoring the drm core, and set_busid is going away, so I'm working on testing if this will be necessary once that lands. [4] This bug exists to help keep track of the status of this fix across upstream and then into our kernels. [0]: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1691991 [1]: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1691991/comments/16 [2]: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1691991/comments/17 [3]: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1691991/comments/29 [4]: https://www.spinics.net/lists/dri-devel/msg143831.html ** Affects: linux (Ubuntu) Importance: Undecided Assignee: Daniel Axtens (daxtens) Status: In Progress ** Patch added: "0001-drm-hibmc-Use-set_busid-function-from-drm-core.patch" https://bugs.launchpad.net/bugs/1698700/+attachment/4898282/+files/0001-drm-hibmc-Use-set_busid-function-from-drm-core.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1698700 Title: hibmc driver does not include "pci:" prefix in bus ID To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1698700/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
