The patch did not fix the issue. However, during boot, some error text appeared that did not appear before:
[ 1.868916] [drm:drm_lspcon_set_mode [drm_kms_helper]] *ERROR* LSPCON mode change timed out [ 1.868970] [drm:lspcon_change_mode.constprop.0 [i915]] *ERROR* LSPCON mode change failed [ 1.868998] [drm:lspcon_resume [i915]] *ERROR* LSPCON mode change to PCON failed [ 1.869024] [drm:lspcon_resume [i915]] *ERROR* Failed to probe lspcon [ 1.869049] [drm:lspcon_resume [i915]] *ERROR* LSPCON init failed on port B dmesg from patched kernel 5.8.0-rc3 attached. ** Attachment added: "dmesg-custom" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1886230/+attachment/5389742/+files/dmesg-custom -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1886230 Title: Thinkpad P1 Gen2 HDMI doesn't work after log out or reboot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1886230/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
