In the meantime the problem got fixed in the upstream v4.18.0-rc1 kernel by this commit:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/gpu/drm/i915?id=368b554d63948133aca05e63ff8f5f4fbc2804d4 Revert "drm/i915/edp: Allow alternate fixed mode for eDP if available." I have confirmed that compiling v4.18.0-rc1 without this commit shows the horizontal lines again. This is in agreement with my earlier findings in comment #23. Let me know if you need more information. I hope this fix can now quickly be back-ported to the Ubuntu 4.13 and 4.15 kernels. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1773581 Title: [Samsung NP900X3G-S01US] Horizontal lines after update to 4.13.0-43 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1773581/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
