Would it be possible to test a couple of kernels? First test the latest Xenial kernel: https://launchpad.net/~canonical-kernel-security-team/+archive/ubuntu/ppa/+build/12080749
If that kernel still has the bug, please test the last kernel version before you hit the bug, -58: https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/ppa/+build/11758956 For both these kernel, you need to install both the linux-image and linux-image-extra .deb packages. Thanks in advance! ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Tags added: kernel-da-key ** Also affects: linux (Ubuntu Xenial) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Xenial) Importance: Undecided => Medium ** Changed in: linux (Ubuntu Xenial) Status: New => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1663637 Title: Image flickering on eDP screen since 4.4.0-59 kernel upgrade Status in linux package in Ubuntu: Incomplete Status in linux source package in Xenial: Incomplete Bug description: Image on my HiDPI 4K eDP screen (HP zbook 15) is flickering since I upgraded my kernel to 4.4.0-59. With 4.4.0-53 kernel, everything is ok. I have try : - 4.4.0-59 - 4.4.0-62 - 4.8.0-36 (from linux-generic-hwe-16.04) All of us make my eDP screen flickering when it was alone. Because the amazing things is here : when my laptop is docked and get two other screen (one fullHD and one 2K), everything get back to normal. Even on my eDP 4K screen ! I don't know how to know where the problem come from. Kernel ? radeon.ko ? xorg-video-radeon ? Gnome Shell ? Is amdgpu.ko usable ? How to test it ? ... need help. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-generic-hwe-16.04 4.8.0.36.8 ProcVersionSignature: Ubuntu 4.8.0-36.36~16.04.1-generic 4.8.11 Uname: Linux 4.8.0-36-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 CurrentDesktop: GNOME Date: Fri Feb 10 16:09:52 2017 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=fr_FR.UTF-8 SHELL=/bin/bash SourcePackage: linux-meta-hwe UpgradeStatus: Upgraded to xenial on 2016-04-21 (294 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1663637/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
