Forgot to mention: Downgrading linux-firmware from 1.173.3 to 1.173.2 made a single port work again.
Still cannot use two ports. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-firmware in Ubuntu. https://bugs.launchpad.net/bugs/1811860 Title: Display ports on Lenovo docking station stopped working after upgrade of linux-firmware 1.173.2 -> 1.173.3 Status in linux-firmware package in Ubuntu: New Bug description: Lenovo Carbon X1 running on Lenovo Thinkpad Ultra Dock I have only been able to attach a single monitor to the docking station before the upgrade of linux-firmware. After todays upgrade from 1.173.2 to 1.173.3, none of the outputs work anymore. The Ultra Dock has two DP, an HDMI, and a VGA output. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-firmware 1.173.3 ProcVersionSignature: Ubuntu 4.15.0-43.46-generic 4.15.18 Uname: Linux 4.15.0-43-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.5 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Tue Jan 15 16:31:39 2019 Dependencies: InstallationDate: Installed on 2018-12-03 (42 days ago) InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) PackageArchitecture: all SourcePackage: linux-firmware UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1811860/+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
