Questions tagged [displayport]

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23 questions with no upvoted or accepted answers
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6
votes
1answer
5k views

Intel Skylake + DisplayPort 1.2 MST/Daisy chain on Linux

I am planning to buy hardware for using DisplayPort 1.2's MST feature to daisy chain two monitors in combination with the Intel Core i5 6600 Skylake processor on Ubuntu. Is this supported yet with the ...
5
votes
0answers
4k views

xrandr shows disconnected DisplayPort with Intel Graphics

I have 4 physical ports on my motherboard, VGA, HDMI, DVI, and DisplayPort. Normally I use HDMI and DVI, but I'd like to switch to HDMI and DP. However, the output of xrandr shows DP as always ...
4
votes
0answers
264 views

Display shows frequently a black screen

I'm using an USB-C Dock to connect to two displays. The dock offeres displayport (dp) and HDMI. The displays offer dp, dvi and hdmi. The displays show the correct picture. But once a minute, the ...
4
votes
0answers
2k views

Scaling only HiDPI display with xrandr in dual monitor set-up

I recently installed Linux Mint 18 on my ThinkPad T460p. Having a dual monitor set-up with a internal HiDPI display and a full HD external display connected via Display Port, I tried to adjust the ...
4
votes
0answers
666 views

Second monitor doesn't wake after kernel update in Fedora Core 20

I have an odd problem with my dual monitor setup. The base system is a Dell 6005 desktop with an ATI Radeon card. My primary monitor is an HP 23", while the second monitor is an HP 20". The primary is ...
4
votes
1answer
2k views

DisplayPort and Intel HD cause GPU hangs

My system has problems with the displayport connection. This is indicated by several problems that, at the first glance, do not have anything in common. The reason why I claim DP for being the cause, ...
3
votes
1answer
620 views

Borders of external monitor constrained to “outside” of laptop monitor

I use Linux Mint 18 on a Lenovo ThinkPad T420, i5, 8 GB RAM and 256 GB SSD, and Intel HD Graphics 3000. I have experienced this problem on elementary OS Loki (which is based on Ubuntu 16.04 LTS), and ...
2
votes
0answers
185 views

Monitor not waking up on start

I have two monitors (both are Dell u2515); they are connected to the motherboard by a daisy-chain cable, both DP 1.2, but I cannot get both of my monitors to wake up on start. The mointor connected ...
2
votes
2answers
633 views

Force audio to high quality output

I'm running CentOS 7 with pulseaudio. Due to a bug in my monitor firmware, I must send audio over the displayport audio as 24 or 32 bit (not 16bit which causes audio failure on the monitor). How can ...
2
votes
0answers
36 views

Changing between two xsessions is very slow if external monitor is connected

If I login via lightdm into an xmonad session and then switch to another user, two xsessions are running and I can switch between them via ctrl+alt+f7 resp. f8. This is very fast (< 1s) on my ...
1
vote
0answers
43 views

Ubuntu 16 - display port no sound

My configuration: Ubuntu 16.04 LTS Nvidia Quadro K1000M Nvidia driver 418 I want to connect my laptop to TV, but the laptop has only a display port so I have bought hdmi to display port adapter ...
1
vote
0answers
273 views

USB-C AlternateMode not working even after upgrading kernel to 4.19

I have been trying to use an external display with my hp-envy-13 running ubuntu 18.04 for a while now. I was expecting that kernel 4.19 would have the support but it still does not seem to work. The ...
1
vote
0answers
210 views

Thinkpad Helix DisplayPort output not working

I have a Thinkpad Helix 2 (2nd. gen) with Ultrabook Pro Keyboard. There is a mini-DisplayPort output on the keyboard part, but I don't get any output from it. (The keyboard can be detached from the ...
1
vote
0answers
172 views

How do I stop my monitor from turning off and on every few seconds when it should be in DPMS sleep?

When connected to DisplayPort 1.2 and suspended with DPMS by waiting or running sleep 1; xset dpms force off my monitor cycles every few seconds between backlight off and backlight on with "...
1
vote
0answers
289 views

Problems Connecting Dell Display to Lenovo P50 Running Fedora 24

I currently have a Lenovo P50 running Fedora 24 and I can't seem to connect my external Dell E2715H monitor to it. I am connecting it via DP-Mini DP and as when I do so the monitor immediately results ...
1
vote
0answers
167 views

Possibilty of DisplayPort over PCIe

I'm trying to figure out if it would be possible to add a DisplayPort to my Linux PC using a PCIe slot. I have found cards like http://www.ebay.com/itm/PCI-E-1x-Express-to-USB-3-1-Type-C-Dual-Port-...
1
vote
0answers
288 views

MacBook Pro Mini DisplayPort flickering over Debian

I have some problems involving a Macbook Pro Mid 2009 13" (MacBookPro5,5) running a Debian 7,7 Whezzy and a LCD screen Benq E2200HD. I am using a Mini DisplayPort to VGA adapter in order to use the ...
0
votes
0answers
15 views

How to avoid my computer shutting down when connecting an external monitor?

My boss has lent me a XPS 15 9560 laptop to work at home. I have installed Kubuntu 19.04 and I wanted to connect it to a big external monitor. Connecting it through the hdmi port doesn't seem to work, ...
0
votes
0answers
23 views

xrandr with second window above, maximising problem

I have a laptop running arch linux with all the latest updates. The laptop has a displayport output. This is connected using a displayport to HDMI cable to the HDMI port on a Samsung HD tv. Display ...
0
votes
0answers
467 views

Monitor (sometimes) not detected when plugged in any DisplayPort

Problem Formulation: Dual-Monitor setup currently not possible because monitor not detected when plugged in any DP. Symptoms: If monitor A is connected to HDMI and monitor B to any DP slot, only ...
0
votes
0answers
470 views

Using Displayport over USB-C (Thunderbolt 3) to drive external 5120x2160 monitor; resolution not detected, cvt mode not working

I bought a new LG 34WK95U ultra-wide screen, which has a native resolution of 5120x2160 at 60Hz. When connecting the monitor via a Thunderbolt 3 USB-C connection, it gets picked up, but it fails to ...
0
votes
0answers
178 views

Display losing audio, need power cycle to restore

I have a Lenovo T420s with displayport and discrete graphics chip (NVidia GF119). I installed CentOS 7 with pulseaudio and all works great - for a while. Then audio stops. pavucontrol shows the ...
0
votes
0answers
862 views

Intel HD 4400 external display with linux

I'm having a Thinpad T440s with Intel HD 4400 graphics chip. The internal display works great. While an external monitor connected via Mini Displayport stays black. XRandR recognizes multiple outputs ...