Hi @kaihengfeng, it is the same with the latest mainline kernel.
I attached the dmesg output below. ** Attachment added: "dmesg-mainline-5.3-rc6" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1840889/+attachment/5284740/+files/dmesg-mainline-5.3-rc6 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1840889 Title: Black Screen on 18.04 + Intel Graphics with Kernel > 4.15.0-47 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1840889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs