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Questions tagged [displayport]

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How do you get video to connect to the GPU and not the motherboard?

On my new desktop computer, there are 5 DisplayPorts, 3 of which connect to the motherboard and 2 of which connect to the discrete GPU. However, the 2 DisplayPorts on the GPU do not output any signal ...
Morgan Ge's user avatar
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0 answers
54 views

How do I extend the desktop environment to the secondary display?

TLDR: The primary monitor didn't work (connected over displayport) I found I could manually turn it on via nvidia-settings It now works, but doesn't show the desktop environment I can move the mouse ...
Erling T's user avatar
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0 answers
80 views

Displayport to HDMI Converter Issue: Second Monitor No Signal after BIOS on AMD Ryzen 5 4600G Dual Monitor Setup

I have a dual monitor setup with an AMD Ryzen 5 4600G (Radeon Graphics) CPU. My motherboard has one DisplayPort and one HDMI port. I connected Monitor 1 to the HDMI port and Monitor 2 to the ...
akalanka's user avatar
0 votes
1 answer
155 views

How to choose which video output to use?

I installed Ubuntu 22.04 on a computer that has a Display Port output and an HDMI output. Both outputs belong to the integrated graphic card. By default the image only comes out of the Display Port, ...
Chiw Neko's user avatar
0 votes
0 answers
631 views

Ubuntu 23.10 display port black screen on high resolution

I've recently upgraded to ubuntu 23.10 on a Gigabyte G5GE Laptop. I have 2 monitors connected, HDMI and mini-DP. Laptop has 2 graphic cards : lspci | grep VGA 00:02.0 VGA compatible controller: Intel ...
Pierre Granger's user avatar
0 votes
0 answers
135 views

Lenovo ThinkCentre M92p DisplayPort to HDMI - no screen

I'm trying to build a media centre out of a ThinkCentre M92p using Ubuntu 22.04 Desktop and I've confirmed that the DisplayPort output works, but when I try to use a DP to HDMI adapter I don't get a ...
Jeremy Wilson's user avatar
0 votes
0 answers
65 views

Problem connecting a third monitor via the USB port of the Dell D6000 dock in Ubuntu 20.04. Only recognizes audio input

I have a Dell dock and I can't connect a third monitor via the Dell dock to the USB port on the notebook (Dell too) with Ubuntu 20.04, but curiously it only recognizes the monitor as an audio input ...
Jarbas Carriconde's user avatar
0 votes
1 answer
272 views

Display port monitor not turning on after turned off Ubuntu 22.04.3

I have an odd problem. When my monitor is manually turned off or goes to power-saving mode, Ubuntu won't detect it when I try to turn on the monitor. I see a blank screen where the DisplayPort input ...
Patrick Lacson's user avatar
1 vote
0 answers
364 views

Ubuntu 22.04: Display port works in Mirror mode but not Extended mode

When trying to connect a Dell P2213t via Display port to the computer, the screen is blank during booting (it still shows Grub). Ctrl+Alt+F2 doesn't work either, but it seems the computer is booted as ...
zilinex's user avatar
  • 11
1 vote
0 answers
666 views

Can't add custom resolutions on Display Port

Just installed Ubuntu 23.04 and found out that I can't change the default resolution 1920 x 1080 via the display settings. Tried adding custom resolution using xrandr --addmode and got the problem ...
SlareJ's user avatar
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1 vote
0 answers
35 views

Extended Monitor Mode With Hdmi To DisplayPort Converter

my laptop is Ideapad L3, and I have two monitors with DisplayPort connections (Laptop HDMI to DP converter -> Dell u2419h DP -> Dell u2417h DP). Problem: I need extended mode for both monitors, ...
Nima dev's user avatar
0 votes
0 answers
32 views

Unable to use full resolution of a 4k monitor using Digital Port

I recently upgraded my system with a Ryzen 9 7900 with integrated radeon graphics and the motherboard has two video ports: HDMI and DP. When I connect my 4K monitor (Samsung LU28E590DS) on the HDMI ...
Alessandro Polverini's user avatar
0 votes
1 answer
338 views

New AMD 6700 GPU. Ubuntu doesn't recoginize monitor connected via DisplayPort. xRandar doesn't see the ports

I bought a PowerColor Bc-2235 video card using a AMD 6700 (non-XT) GPU. The card works just fine with mi HDMI monitor, but I can't make it work with a secundary monitor connected via DisplayPort. The ...
nicocarbone's user avatar
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0 answers
35 views

3rd video output(display port) wont fractal scaling independently of the hdmi output

https://askubuntu.com/a/1400572/112263 I found this question/answer that suggested using the fractal scaling option to get screens to act as if they were same size. I want this so there is no "...
CrandellWS's user avatar
0 votes
1 answer
292 views

Ubuntu 22.04 sound line out always detects unplugged

Recently the OS crashed after updating. Then I tried to reinstall Ubuntu. It turns out it can't detect the audio output via the DP port. Pulse Audio: The speaker of my monitor works fine. The tricky ...
Fire's user avatar
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2 votes
2 answers
2k views

My HDMI/DISPLAY port Audio stopped working on Ubuntu 22.10

I've been using Ubuntu 22.10 for quite some time, my HDMI/Display port audio always worked until yesterday when it suddenly stopped working. I guess some automatic update happened and now the driver ...
Fábio Sousa's user avatar
0 votes
0 answers
128 views

DP Alt mode USBC stops work working periodically

I have Lenovo Thinkpad P1 Gen 3.(Nvidia Quadro graphics and a video output controller.) And a Lenovo 1 wire monitor - USB-C Hub + DP Alt mode. This setup's video (DP part) randomly stops working and ...
Aleksandr Panzin's user avatar
0 votes
1 answer
157 views

Displayport Not Working Ubuntu 22.04/Intel HD 4000

I am trying to connect my second monitor through DisplayPort. My first monitor is connected to HDMI port. The DisplayPort is not detected. I am new to Ubuntu. The drivers installed. lspci -k | grep -...
G_K2020's user avatar
1 vote
2 answers
2k views

Ubuntu 22.04 nvidia gpu immediately puts display port connected monitors in standby mode

Setup and Problem I'm running a Ubuntu 22.04 with a Nvidia RTX 3070-ti with two monitors. The GPU has 1 hdmi port and 3 display ports. Whichever monitor is plugged into the hdmi slot is by the ...
neav's user avatar
  • 11
0 votes
0 answers
487 views

How can I get full (2560x1440) resolution on my external display?

I am using AOC Q3279VWF as a monitor, but am only able to reach 1920x1080 resolution. I would like to achieve the full 2560x1440 resolution of the monitor. This is listed as an option in the display ...
AbraKadabra's user avatar
0 votes
1 answer
400 views

Built in Camera in Dell C3422WE not recognized Ubuntu 22.04

I have a Dell Monitor C3422WE with a built-in camera and microphone (for video calls). I have a fresh install of Ubuntu 22.04 with an Nvidia driver. The Nvidia card is connected to the monitor via ...
Or Duek's user avatar
0 votes
0 answers
407 views

Notebook/docking station Ubuntu support 2 external monitors

TLDR What notebook and and docking station seamlessly supports 2 large external monitors? My personal computer is an Asus zenbook (UX390) with "plugable" usb-c docking station. I have a ...
Francis Cagney's user avatar
0 votes
1 answer
2k views

Displays on Thunderbolt dock stopped working

During a recent kernel update, my Thunderbolt dock (a Thinkpad Thunderbolt 3 Gen 2) stopped working. My computer (A Lenovo Thinkpad P50) still responds to the mouse and keyboard connected to the dock, ...
ManiSto's user avatar
  • 111
0 votes
0 answers
130 views

DisplayPort 'breaks' on boot

I am not sure if this is even an Ubuntu question as it very well could be some kind of electrical power race condition. The connected DisplayPort stops working on boot; more details below. My setup: ...
DisplayName's user avatar
1 vote
1 answer
2k views

DisplayPort not detected on ThinkPad T14 Gen 3 with Ubuntu 22.04

I am having series issues connecting external monitors to my new ThinkPad T14 Gen3. For once it cannot detect the HDMI port at all, which is annoying but avoidable as it can detect HDMI via a dock ...
tegonzalo's user avatar
0 votes
0 answers
86 views

Multiscreen by DisplayPort

I have a Dell unit connected to two screen by Display Port. After first reboot, only one screen is working. The other displays "no DP signal". If I change the cable from one port to another ...
Jules Wolff's user avatar
0 votes
1 answer
510 views

Ubuntu sets refresh rate to 120 Hz automatically

I recently bought two new Dell P2723DE displays (27 inch, 2560x1440). I have them set up in a daisy chain configuration, connected to my stationary dual boot (Windows 10 and Ubuntu 20.04) computer. ...
elmaxe's user avatar
  • 1
2 votes
1 answer
448 views

Xrandr gives wrong info about screen connections?

After a fresh install of Ubuntu 22.04 LTS I fail to get my second screen to work. Google does not turn up much useful, nothing that has worked yet. So after spent a couple of days searching, I decided ...
user avatar
0 votes
1 answer
581 views

DP alt mod display stopped working

After about 6 months external dell 4k display stopped working with laptop (ubuntu 20.04) via USB type C. Since February 2022 I have setup: Dell Lalilude 7410 with Ubuntu 20.04, with 5.13.0-35 kernel ...
Mikhail G's user avatar
0 votes
0 answers
63 views

No graphical output if computer boots with monitor set to different input

My Dell 3008WFP monitor supports multiple inputs. I have two computers, an Ubuntu 22.04 machine connected to the DisplayPort input, and a Windows Surface Pro machine connected to the HDMI input. When ...
jl6's user avatar
  • 294
0 votes
0 answers
55 views

Connection to 2nd monitor via DP is recognized but doesn't display

Running Ubuntu 18.04 on an X1 Carbon with two Dell monitors connected via DisplayPort. I've historically connected monitor 1 via DP and monitor 2 via HDMI without issue, but recently swapped out the ...
Chris's user avatar
  • 167
0 votes
1 answer
430 views

Ubuntu 22.04 displayport cutting in and out

I have Ubuntu 22.04 and an NVIDIA Corporation GA102 GeForce RTX 3080 video card. The video card has 3 Displayport outputs and 1 HDMI. I have an ASUS VE278 monitor that has the HDMI plugged in and it ...
raphael75's user avatar
  • 375
0 votes
1 answer
1k views

second monitor detected but screen is black

I have Ubuntu 22.04, a GeForce 3080 with an ASUS VE278 and an ASUS VE276. Both monitors are connected with DisplayPort cables. If I run this: $ xrandr --listmonitors Monitors: 2 0: +*DP-1 1920/...
raphael75's user avatar
  • 375
1 vote
0 answers
1k views

KDE Plasma suddenly not showing display resolution above 1080p

I've been trying to get this back all night but I've failed so I thought I'd come here and ask. I was moving my machine (HP Z240 with standard Intel graphics) running Ubuntu Studio 21.10 that was ...
Dave's user avatar
  • 43
2 votes
1 answer
7k views

No sound through DisplayPort

I can't get sound on my desktop. My setup looks like this: Graphics Card -> (Display Port) -> KVM Switch -> (Display Port) -> Monitor -> (3.5mm connector) -> Speakers When I boot my ...
azani's user avatar
  • 141
9 votes
3 answers
18k views

OS freezing with dual monitors on Ubuntu 22.04 LTS

I have a fresh install of Ubuntu 22.04 on a new laptop, with no other OS installed. When I connect to my monitor with the laptop open (so that the built-in display is active) everything freezes - I ...
mattg's user avatar
  • 111
1 vote
0 answers
342 views

Second monitor prevents booting on 20.04 (onboard graphics)

I am running an (almost) fresh install of Kubuntu 20.04, all latest updates applied. I completed the process on an HDMI monitor that was plugged into the motherboard (a ROG STRIX B560-F GAMING WIFI). ...
coffin's user avatar
  • 11
1 vote
0 answers
1k views

screens keep switching display port names/numbers – how to configure settings?

I have a notebook (Lenovo Thinkpad T14) running Ubuntu 21.10 (and another similar one running Ubuntu 20.4) with Xfce4 (aka XUbuntu) and a Thinkpad USB-C docking station, to which I've connected two ...
Paŭlo Ebermann's user avatar
2 votes
0 answers
120 views

Monitor connected via eDP goes black for 1-2 seconds whenever I call xrandr

On my hardware there is only one single monitor attached at eDP-1. And whenever I call xrandr --query the monitor turns black for 1-2 seconds, although the command completes without an error. Also, I ...
Seven's user avatar
  • 131
-1 votes
1 answer
181 views

After update to 21.10, usb type-c displayport not work

After update to ubuntu 21.10, I can not connect to my usb type-c monitor
hjbilly's user avatar
  • 69
0 votes
0 answers
323 views

Unable to run Ubuntu Desktop GUI on Xilinx's ZCU104

I am trying to boot a Ubuntu Desktop 20.04.3 LTS image on my Xilinx ZCU104 platform. While I am able to login using the serial port, I am unable to view the GUI on my monitor. I see some boot commands ...
TheBlue Phoenix's user avatar
2 votes
0 answers
386 views

Unable to set 2560x1600 resolution to Apple Cinema Display 30" via Apple Mini-Displayport to Dual-link DVI adapter on 2013 Macbook Pro 13"

I'm trying to revive a dusty old 13" MacBook Pro Early 2013 (Model A1425, 2.6 GHz i5) by installing Ubuntu (20.04 or 21.10, Lubuntu/Xubuntu/Ubuntu-Mate) on it. I have two 30" Apple Cinema ...
martijn's user avatar
  • 21
1 vote
0 answers
279 views

Unknown Display on DP-3. Only one display present

Ubuntu 18.04 LTS and 20.04 LTS show a second unknown display, which is not actually present. I have tried every related solution with no success. I am running Ubuntu 18.04 LTS. I have a NVIDIA ...
ejg's user avatar
  • 11
2 votes
0 answers
190 views

Disable log out when turning off the screen

I'm using Ubuntu 21.04 with Fluxbox as my Window Manager. My screen is connected via DisplayPort. The screen has multiple input ports and I often switch between different connected devices or ...
tex's user avatar
  • 121
2 votes
0 answers
2k views

Ubuntu 20.04 does not detect external monitor through HDMI/DisplayPort adapter

I am trying to set up an external monitor to my laptop (Lenovo ThinkPad E14 Gen2). The monitor doesn't have an HDMI port, so I am using an HDMI/Display port adapter, but Ubuntu doesn't seem to detect ...
thbake's user avatar
  • 65
2 votes
0 answers
300 views

How to get MultiSeat (loginctl attach) to properly work with a MultiStreamDisplayPort card?

The native display on this All-in-One is the .../card0/card0-LVDS-1 and the DisplayPort attached external monitor is .../drm/card0/card0-DP-2 Was hoping to keep the LVDS as the embedded All-in-One and ...
rjt's user avatar
  • 426
0 votes
0 answers
147 views

3 Monitors not working on kubuntu 21.04

I want to have a setup with 3 monitors. I have a DELL precision T1650 with 32 GB RAM and + 1TB SSD. For display, I have 2 Phillips (1080P: 1920x1080) and one BenQ monitors(1080P: 1920x1080). The 2 ...
dmx's user avatar
  • 1,987
2 votes
1 answer
3k views

Displayport over USB-C stopped working - faulty drivers?

My laptop (Dell XPS 13, 9350) has a single USB-C port, which I am used to connecting to a docking station which is in turn connected to peripherals (USB devices, audio, display, power supply). One day ...
Bib-lost's user avatar
  • 302
1 vote
1 answer
271 views

Ubuntu 21.04 freeze with display port

When i connect my monitor with display port, ubuntu freeze. Hard reboot not help because system not starting. But, when i connect with HDMI, it's all OK. 5.11.0-22-generic - ubuntu version GeForce ...
Enormouz Onez's user avatar
1 vote
1 answer
1k views

How to use USB-A port for Displayport screen?

I have a Dell Latitude computer running Ubuntu which has just 1 USB-C port. I would like to connect two external monitors. On my Mac, I use two USB-C to Displayport cables and that works very smoothly....
Cornelius Roemer's user avatar