Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.13 kernel[0].
If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.14-rc1-trusty/ ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Tags added: trusty ** Bug watch added: freedesktop.org Bugzilla #71267 https://bugs.freedesktop.org/show_bug.cgi?id=71267 ** Also affects: linux via https://bugs.freedesktop.org/show_bug.cgi?id=71267 Importance: Unknown Status: Unknown -- 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/1275794 Title: Lenovo T440s freezes when connected to docking station Status in The Linux Kernel: Unknown Status in “linux” package in Ubuntu: Incomplete Bug description: This bug report looks to be for the same issue: https://bugs.freedesktop.org/show_bug.cgi?id=71267 I came across the above bug report here: https://bbs.archlinux.org/viewtopic.php?pid=1374408 I'm running with a Thinkpad T440s and ultra dock with hdmi<->hdmi. In my case if I dock when hdmi is connected to the dock, the mouse and keyboard freeze once connected. When I undock they unfreeze. If I dock when hdmi is not connected to the dock, the mouse and keyboard don't freeze. Ubuntu release: 14.04 Trusty Tahr (development branch) To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1275794/+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