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3
votes
1answer
48 views

Cannot disable Display Port via grub boot options

When I run xrandr on the terminal I see DVI-0 connected and DisplayPort-1 connected. I only use DVI-0 as my output. I don't have two screens, or anything else connected to my computer, so I don't know ...
0
votes
0answers
50 views

external monitor flickers at 1440p resolution (Lenovo L440, Inteld HD 4600, 14.04 LTS)

I have a Lenovo L440 with Ubuntu 14.04 LTS which is connected to a Dell Ultrasharp Display via (Mini-)Displayport which I would like to run at its native resolution of 2560x1440 pixels. Unfortunately ...
0
votes
0answers
39 views

Mini Displayport not carrying audio using an HDMI adapter on a Thinkpad X250

My new Lenovo Thinkpad X250 has a Mini-Displayport as a digital audio-video output: I use to connect it to a TV using a Lenovo HDMI adapter. Although, audio is not shared. With respect to other ...
4
votes
0answers
113 views

Ubuntu support for 5K (Dell UP2715K): adjusting details

I've recently purchased a Dell UP2715K which has a resolution of 5120x2880 and have installed ubuntu 15.10 to go with it. The UP2715K is connected to a GeForce 960 GTX (2 displayport cables since 1 ...
0
votes
1answer
332 views

Ubuntu MATE 15.10 - Cannot recognize my monitor through DisplayPort

I'm rather new to Linux, please keep that in mind when answering my question. I am dual-booting Ubuntu MATE 15.10 next to my Windows 10 OS. On Windows, my two monitors work fine side-by-side. ...
0
votes
0answers
44 views

Display not recognised after switching off and back on

Sometimes, when I am away from my computer for a while, I like to switch off my monitor, because I feel it does not need to be active and waste energy for nothing. I have usually done this without a ...
1
vote
0answers
31 views

Merge MST stream Monitor into one virtual

I'm using a PQ321QE in conjunction with two U2412M. Unfortunately, the PQ321QE which I'm using as a main screen only supports 30Hz in SST mode so I'm forced to used it in MST mode. The issue I'm ...
0
votes
0answers
67 views

How to force the second screen working again ? (intel)

My issue is : when I go to Ubuntu settings it turns off my second screen (mini display port to vga). The solution is to unplug, wait 5 minutes and plug it again. The Super+P action as no ...
1
vote
2answers
91 views

14.04 cannot output sounds to hdmi audio device

My dell XPS 13 2015 with Ubuntu 14.04 is connected to an HDMI device via a displayPort -> HDMI adapter. The picture appears fine on the HDMI monitor but I cannot select it as my output audio device. ...
0
votes
0answers
149 views

Monitor connected via HDMI to displayport is detected but has no display

I connected 2 BenQ BL2405 monitor using VGA on one and one on an HDMI to Displayport cable to my HP DeskPro workstation running Ubuntu 12.04 LTS. The good thing is that the both monitors are detected ...
0
votes
0answers
52 views

Ubuntu 15.04 Corrupted Screen on 1080p144

I have a fresh install of Ubuntu 15.04 on my system. It's installed in legacy mode. My GPU is an AMD 7950. When I set the resolution & mode using: xrandr -s 1920x1080 -r 144 The display starts ...
1
vote
0answers
58 views

660ti Displayport Daisy Chain no audio

I have searched the internets for this problem but could not found a solution. I have a dual monitor set up chained via display port. I have no issues with the graphical performance but I do not have ...
0
votes
0answers
135 views

Unknown Display trying to connect external Monitor to Laptop via Mini-DisplayPort

I got a new laptop with an Nvidia GTX 970 + integrated Intel Graphics and got an Acer XB280HK Monitor with Gsync for optimal viewing pleasure. On Win10 everything works fine (dual boot). However if I ...
0
votes
0answers
78 views

Getting no sound in Xubuntu (DisplayPort)

I've read many blogs and askubuntu entries about this problem, but found no solution. I have recently installed Xubuntu 14.04 LTS on a new PC. I do not get any sound. My monitor (ASUS PB278QR) is ...
0
votes
0answers
46 views

login to remote computer (w/ x2go) so I can use media server with connected hdmi system

I have a local server with a HDMI screen/sound attached to it. I want to be able to login remotely to that server and select/play media from that location. (I am currently using x2go and would prefer ...
1
vote
0answers
304 views

Displayport MST not working properly on Xubuntu 15.04

In several questions on this site, I saw that Ubuntu 15.04 would have support for Displayport daisychaining/MST. I have a two monitors that have Displayport in and out, indicating that they can be ...
0
votes
0answers
98 views

Audio over Displayport on docked Thinkpad T530

I have Lenovo Thinkpad T530, with docking station. Then I have a monitor (Lenovo ThinkVision Pro2840m), and I have Displayport cable from docking station to the display. Monitor does have speakers, ...
1
vote
0answers
131 views

DRM not initializing eDP LCD Display

I'm having an issue with Ubuntu on a small-form-factor PC I built. It is based on the ASUS Q87T and the Intel G3258 CPU. Everything works great with an external (DP, HDMI, VGA) display, but I cannot ...
0
votes
0answers
122 views

XB240H Abprz (144hz, 1080p, GSync) only running at 60hz without GSync! Solution?

I run Ubuntu GNOME 14.04 Trusty Tahr with a GTX970, 4790k, 16gb DDR31866, etc. I have the XB240H 24 inch, and it is running at 60hz. The on-board monitor options do not let me modify this, and when I ...
0
votes
0answers
54 views

Server System Installation Does not support Display Port Monitor

Ubuntu 12.04 system-installation does not create a system that correctly recognizes and uses a display port monitor. The target system has an Intel Atom E3845 processor with DP++ graphics. The install ...
0
votes
1answer
213 views

Thinkpad W520 DisplayPort/HDMI sound

On my Thinkpad w520 with Nvidia Optimus (using Nvidia properietary drivers) I connected an external monitor via DisplayPort, using a Displayport -> HDMI adapter cable. The monitor has integrated ...
3
votes
0answers
326 views

Same image on two external displays with a Lenovo T550 and a docking station

I have a Lenovo T550 without NVIDIA graphics (only an Intel Broadwell-U Integrated Graphics). This works fine with the internal display. Now I want to attach two external monitors to the docking ...
0
votes
0answers
189 views

Two Monitors on Mac Mini

I recently installeed Ubuntu 14 with 3.16 kernel update in may Mac Mini (2011). But i have two monitors, one atached on Mac Mini HDMI out and the second atached ond the Thunderbolt port with an ...
1
vote
0answers
541 views

Help getting mini-DisplayPort external monitor working on Lenovo T440s ( Intel HD 4400)

I have the following setup: Lenovo T440s running Ubuntu 15.04 (upgraded from 14.10) Asus PB278Q (supports DisplayPort 1.2) AmazonBasics mini-DisplayPort to DisplayPort cable System information: $ ...
0
votes
0answers
48 views

3rd monitor not working anymore on Ubuntu [duplicate]

I have a dell optiplex 7010 with three DELL monitors attached and running Ubuntu 14.04 LTS (kernel 3.16.0 ). One of the monitors is attached via VGA cable while the other two using displayport cables. ...
2
votes
0answers
322 views

Kubuntu 15.04 on Dell XPS L322x - not detect external monitor over displayport

As in the subject - XPS connected (minidp->dp) to additional LCD display but not working. System seems to not detect the display at all.
0
votes
0answers
84 views

is there a usb3 docking station which works with ubuntu?

I read few bad news (this or this ) about displayPort and Ubuntu from previous year, but what about nowadays: does a usb3 docking station can works with Ubuntu ?
0
votes
0answers
608 views

Ubuntu 15.04 AMD Catalyst 15.3 - Not detecting displayport hub

I upgraded from 14.10 where I had the AMD Catalyst 14.12 driver working "fine". (I say, "fine" but that's relative as there were some graphical issues, but it detected all my montiors). I upgraded to ...
0
votes
3answers
1k views

Laptop monitor plus two external monitors via dockstation

I have a Dell XPS13 (9333, Intel HD graphics 4400), running Ubuntu 14.04 and connected to a Dell monitor U2412M via VGA to mini DP. What I would like to do is to connect to another monitor (same make ...
0
votes
1answer
171 views

need to switch DP daisy-chained monitors on & off to get xrandr to switch them on

I'm running awesomewm on ubuntu laptop. I have two external monitors connected in DP daisy chain configuration, plugged into laptop's mini-dp port. xrandr detects both when they are plugged in. ...
1
vote
1answer
2k views

Multiple displays in Ubuntu/XUbuntu - Displayport with Adapter (DisplayPort to 2x DVI) + ATI Graphics

I want to be able to use the DisplayPort on my laptop hooked up to a [DP to (2) DVI] adapter to drive two external displays (both using DVI). This is the adapter I have: ...
0
votes
0answers
531 views

Ubuntu Dell E7240 : Displayport Monitor resolution 14.04

I have a Dell E7240 which came with Ubuntu 12.04 pre-installed. I use it with a Dell docking station in work. On 12.04 it recognised the correct resolution for the monitor, after updating to 14.04 it ...
0
votes
1answer
261 views

Displayport Hub functions like Apple Thunderbolt Display

Does Displayport supports hub funtions for e.g. usb (like the Apple Thunderbolt Display)? I just bought an Dell XPS 13 2015 (9343), now running Ubuntu 14.04 LTS (Trusty Tahr). It has a Mini ...
3
votes
1answer
7k views

Dell XPS 13 2015 Ubuntu compatibility (Displayport/MST)

I just bought an Dell XPS 13 2015 (9343) whose Linux (installed Ubuntu 14.04 LTS (Trusty Tahr)) support seems to be quite disappointing at the moment. Before spending money on new equipment I would ...
0
votes
1answer
464 views

Updating Ubuntu on Dell Latitude E7240 (factory install)

I have a Dell Latitude E7240 as my work machine. It came with Ubuntu 12.04 pre-installed. I would like to upgrade to a later distro but it is important that I don't end up witha buggy machine a s a ...
0
votes
1answer
180 views

How can I make xubuntu ignore DisplayPort monitor being turned off?

I have a desktop machine (Dell T5600) with an Nvidia graphics card (Quadro 2000), and two monitors (Dell 24"), and I'm running xubuntu 14.04. If I switch off a monitor connected with DisplayPort, ...
0
votes
0answers
173 views

Ubuntu 12.04 Thinkpad 430 Mini Displayport Weird Effects

I'm running 12.04 on my Thinkpad 430, and I'm connecting that to a Samsung 32 inch 720p TV through a Mini Displayport to HDMI cable. I've had no trouble with this cable when connecting from Windows ...
3
votes
0answers
677 views

I'm unable to set 2560x1440 resolution on Intel HD 5000 using Displayport with PG278Q

I've just installed Ubuntu 14.04 LTS and I'm unable to get the monitor working. Screen works fine in BIOS and the same machine when booting to windows (before installing Ubuntu). I have tried the ...
2
votes
0answers
293 views

How to: External Monitor (HDMI)

I'm on a Dell xps l502x 64 dual boot machine. It worked on both, but I had a accident: the screen cracked, so after that I tried to use an external HDMI display as primary display. Now it only works ...
7
votes
6answers
13k views

DisplayPort monitor not detected if switched off and on again

I am running Ubuntu Desktop 14.04 on a desktop PC with a Nvidia GTX 660 connected to a HP LP2475w 24" monitor over DisplayPort. It boots up fine, but if I switch off the monitor and switch it on ...
4
votes
1answer
624 views

X1 Carbon Mini Display works with External Monitor but not Projectors

I have an X1 Carbon 2014 model, and everything seems to work great on Ubuntu 14.04. Recently now I've had to use it twice to give a presentation, and both times it's failed to detect the VGA ...
1
vote
1answer
2k views

mini displayport not detected - hd4400, thinkpad x240

I have a thinkpad x240 with a hd4400 graphics card running on ubuntu 14.04. I've been trying to get the mini displayport working with no success. I have an apple mini-dp to vga adapater. I know the ...
3
votes
1answer
542 views

Two monitors, two DP-connectors, Ubuntu sees those as one

I have a IBM ThinkPad in a dockingstation. Attached are two monitors (default resolution: 1920x1200) via two DisplayPort connectors. The laptop have Nvidia/Intel chipset, but I only using Intel. ...
2
votes
0answers
2k views

Problem with external monitor

Since yesterday I have weired problems using my external monitor (Benq 19" connected via DVI over DVI->HDMI cable and HDMI->Mini DisplayPort-Adapter) with Ubuntu 14.04. Until then I could use this ...
4
votes
1answer
1k views

Mini Display Port and Ubuntu 14.04

Did someone manage to use the mini display port instead of the hdmi port of a laptop (with ubuntu 14.04) ? I use bumblebee and my laptop has a nvidia card. I already posted a remark in this thread ...
1
vote
2answers
1k views

Asus Chromebox Displayport monitor not detected

I have installed ubuntu 14.04 as a dual boot OS on my Asus Chromebox and I'm a linux newbie. Anyway, everything seems to be working fine except for the DisplayPort monitor not working. The ...
1
vote
0answers
213 views

Two 4k Displays

I want to set up my machine with two 4k Displays. For that, I need to have a separate graphic card for each display as the Display Port only supports one Monitor with this resolution. I have two of ...
5
votes
2answers
16k views

How do I know if I will be able to daisy-chain monitors? (connect two monitors to 1 DisplayPort)

I am planning to use Surface Pro 2 with a dock station as my main computer and I would like to connect two external monitors to it, but the dock station only contains a single DisplayPort socket. ...
6
votes
3answers
10k views

Thinkpad w540 w/ Ultra Dock only one external monitor works

I have installed Ubuntu 14.04 on this Lenovo ThinkPad W540 laptop, and everything appears to be working ok by itself. Today I received my docking station to which I intended to hook up 2 external ...
1
vote
0answers
125 views

Dual External Monitor Bumblebee/Nvidia (or withoout Bumblebee)

I have installed and configured Bumblebee on my Dell XPS 17 with an Nvidia GT555m. I would like to use my two external monitors with the laptop closed, but it's giving me all sorts of difficulty. Is ...