Thanks for the clarification. I suspect the start-up problem has a chance of being a different bug, possibly related to gdm3. So if you agree then please open a bug for that by running: ubuntu-bug gdm3
Back on the main issue here, the data in comment #18 is showing that the tablet always has both HDMI ports present in software, but none are able to detect the TV which is presumably always connected to the HDMI port of the dock. The only thing that changes is whether the dock is connected to the tablet. Basically this is a kernel problem in which the kernel never detects the TV connected to the HDMI port. So the next step is to report it to the Intel graphics kernel bug tracker, please :) https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel ** Package changed: xorg-server (Ubuntu) => linux (Ubuntu) ** Changed in: linux (Ubuntu) Status: Incomplete => New -- 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/1816860 Title: Second display does not show up on dock of Lenovo Helix 2 Status in linux package in Ubuntu: New Bug description: To me a deal-breaker: I bought the Helix 2 as machine on the dock, and I also bought the one out of the three docks that doesn't need extra driver (so it says), the 4X10H04503. I stuck the tablet into it, with Windows, and the second display came up without any additional driver. With kubuntu 18.04 I can't make it appear. xrandr doesn't show it. Now I wonder, where else it might pop up? I mean, the dock works, I ran a unified Logitech receiver on it, and from the first second mouse and keyboard are available to my *buntu installation, of course the grub menu. I am quite disheartened, since I don't feel like going back to Windows after some 20 years on *nix. I am willing to help out as much as my very limited abilities allow me to. I can't believe that a dock which actually supplies power and keyboard and mouse data does not supply any information about the second monitor? --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.5 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CompositorRunning: None CurrentDesktop: KDE DistUpgraded: Fresh install DistroCodename: bionic DistroRelease: Ubuntu 18.04 DistroVariant: ubuntu ExtraDebuggingInterest: I just need to know a workaround GraphicsCard: Intel Corporation HD Graphics 5300 [8086:161e] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo HD Graphics 5300 [17aa:222b] InstallationDate: Installed on 2019-02-16 (4 days ago) InstallationMedia: Kubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) MachineType: LENOVO 20CHS10P02 Package: xorg-server (not installed) ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-45-generic root=UUID=0f5d3b8a-5cae-45cb-a42d-b89344359b2f ro quiet splash vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-45.48-generic 4.15.18 Tags: bionic ubuntu Uname: Linux 4.15.0-45-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 10/31/2018 dmi.bios.vendor: LENOVO dmi.bios.version: N17ETA2W (2.02 ) dmi.board.asset.tag: Not Available dmi.board.name: 20CHS10P02 dmi.board.vendor: LENOVO dmi.board.version: SDK0E50510 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 11 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN17ETA2W(2.02):bd10/31/2018:svnLENOVO:pn20CHS10P02:pvrThinkPadHelix2nd:rvnLENOVO:rn20CHS10P02:rvrSDK0E50510WIN:cvnLENOVO:ct11:cvrNone: dmi.product.family: ThinkPad Helix 2nd dmi.product.name: 20CHS10P02 dmi.product.version: ThinkPad Helix 2nd dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.95-1~18.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 18.2.2-0ubuntu1~18.04.2 version.libgl1-mesa-glx: libgl1-mesa-glx 18.2.2-0ubuntu1~18.04.2 version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4.2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20171229-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1816860/+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
