** Description changed: I have a HP EliteBook 840 G1 laptop that I use in combination with a HP 2013 UltraSlim Docking Station (REV V1.00). I cannot use both DisplayPort connectors of the docking station to enable a dual-monitor setup. If I try to do so, I get a mirrored image instead. The "Displays" tool shows the built-in display and only one of my monitors (at home, where I'm writing this, I have the same monitor (Asus PB278Q) twice). In my office I tested with different monitors and only one of them showed up. - I tried my installed system (Ubuntu Desktop 14.04.1 with Gnome Flashback - (Metacity), 64 bit) and a live system (Ubuntu Desktop 14.10 Beta 2, 64 - bit) with the same results. + I tried my installed system + - Ubuntu Desktop 14.04.1 with Gnome Flashback (Metacity), 64 bit + and several live systems + - Ubuntu Desktop 14.10 Beta 2, 64 bit + - Linux Mint Debian Edition 201403 Cinnamon DVD, 32 bit + - openSUSE 13.2 Beta1 Live KDE, Build 0011, 64 bit + with the same results. I know that the setup should work since the machine is dual-boot and works with Windows 7. I updated both BIOS (to version 1.20 (2014-07-28) and docking station (to version 2.18.000 (2014-03-07)) with no change to the issue. The following workarounds work: - - Imitating a single monitor with a resolution of (3840x1080) This maybe only work because the monitors are of the same type. + - Imitating a single monitor with a resolution of (3840x1080) This maybe only work because the monitors are of the same type. - Attaching one of the monitors to VGA instead of the DisplayPort (reducing the usable resolution to 1920x1080) Attaching one of the monitors to the laptop's DisplayPort connector leaves the screen blank. I'm willing to give more info or test things but I am not sure on what to add.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1374842 Title: Impossible to use 2x DisplayPort (Dualmonitor) with HP EliteBook 840 G1 on HP 2013 UltraSlim Docking Station To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity-control-center/+bug/1374842/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
