This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- bionic' to 'verification-done-bionic'. If the problem still exists, change the tag 'verification-needed-bionic' to 'verification-failed- bionic'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-bionic -- 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/1789358 Title: Support Power Management for Thunderbolt Controller Status in HWE Next: Triaged Status in linux package in Ubuntu: Fix Committed Status in linux source package in Bionic: Fix Committed Status in linux source package in Cosmic: Fix Committed Bug description: ===SRU Justification=== [Impact] New TBT controllers may use Native PCIe Enumeration (i.e. just like other normal PCIe device listed under lspci) instead of ACPI hotplug. Since TBT controller stops getting unplugged from PCIe bus, it draws additional power. [Fix] Support runtime power management for TBT controllers, so it can be put to D3 to save powers. [Test] I tested and verified this patch series can make Lenovo T480's TBT controller enters PCI D3 at runtime. I also verified this series on XPS 9370 which uses ACPI hotplug, no regression observed. [Regression Potential] Low. Almost all TBT controllers in the wild still uses ACPI hotplug, this series won't affect those users. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1789358/+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
