Could you please try some older kernels (like 4.18) to see if the problem is caused by the new kernel in Ubuntu 19.04?
https://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D ** Package changed: xorg (Ubuntu) => ubuntu ** Changed in: ubuntu Status: New => Incomplete ** Package changed: ubuntu => linux (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1821641 Title: [HP Elitebook 840 G1] Screen is upside down on 19.04 daily To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1821641/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
