Jun 10, 2016 - 04:02am
I just got a new Dell E7450 laptop with an Intel Broadwell-U Integrated Graphics card built in.
I wanted to set up the way I did on my previous laptop - with 2 monitors plugged into DVI ports in my docking station, and as the 3rd monitor - my laptop screen.
The problem is - Ubuntu only sees my laptop screen and 1 monitor. When both standalone monitors are switched on the signal gets cloned to both of them (so they all work, but two of them show the same image).
A collegue of mine also has the same setting, but he has the 3rd Gen Core processor Graphics Controller in his laptop, and all 3 monitors are detected by Ubuntu.
I managed to override this problem temporarily by plugging a DisplayPort -> DVI converter into the laptop directly, but that forces me to attach cables to the laptop every time i put it into the docking station, which I would like to avoid.
Does anyone have any knowledge if this Broadwell-U card can support 2 separate monitors over a docking station?
I noticed that lshw -c video shows "capabilities" for my friend's laptop which include "msi" and "pm", whereas mine doesn't. Could this be the problem?
lshw -c video
description: VGA compatible controller
product: Broadwell-U Integrated Graphics
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
width: 64 bits
capabilities: vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:66 memory:f6000000-f6ffffff memory:e0000000-efffffff ioport:f000(size=64)
Linux 3.13.0-88-generic #135-Ubuntu SMP Wed Jun 8 21:10:42 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
Hi - if you run xrandr are the two monitors detected separately?
If you're on an LTS release of ubuntu, are you able to jump to a newer kernel from one of the LTS enablement packs (point releases)?