Questions tagged [external-monitor]

Secondary monitor that is connected to a device with an embedded monitor such as laptops.

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Inspiron 7590 - no signal to external display on linux (works on Windows 10)

I'm using the laptop mantioned above (GTX1650 configuration) and installed a linux distro alongside Windows 10. The only one (but at the same time - the most annoying) problem is no signal to external ...
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1answer
101 views

Unable to lock screen

I'm using Ubuntu 18.04 with default DE on my laptop. I have an external monitor that I used for weeks without problem. (maybe during an update) I closed the lid and then the desktop appeared on the ...
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130 views

Ubuntu 20.04 doesn't wake up monitor

I have Ubuntu 20.04 installed on my Oryx Pro (oryp5) from System76. I have a Dell P2715Q monitor attached via USB-C. When the laptop goes to sleep the monitor doesn't wake up! My only solution at the ...
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33 views

No external output with hdmi usb switch but yes on Windows

I've a laptop that has two thunderbolt ports. I wanted to see the video into an external monitor, so I have bought a usb-c to hdmi switch. On Windows everything works correctly, but here on Ubuntu (I'...
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38 views

Black screen with mouse cursor when connecting to external monitor with lid closed

I am trying to use my laptop in a docked mode, so external keyboard, mouse and monitor. I found this post but didn't much and was very old and have tried to the following. In gnome tweak tool I've un-...
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116 views

tiled monitor support ( LG 34wk95u )

I have an LG 34WK95U monitor that I can't get to function at full 5120x2160@60Hz resolution in Ubuntu. The max I get is 3440x1440@60 or I can manually force 5120x2160@30 with xrandr but it's not ...
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2answers
150 views

Cannot switch audio output when external monitor is connected via HDMI

When I connect an external monitor via HDMI I cannot switch audio output to built-in or headphones. I change output in Sound settings but audio still goes through the HDMI output. I am using Ubuntu ...
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13 views

Thinkpad trackpad stays active with lid shut and external display

I have a ThinkPad Carbon X1 3rd Gen running 20.04 desktop. When I connect an external monitor to the laptop (either directly, or via the OneLink dock) and shut the lid, the trackpad stays active. I'd ...
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External screen to the left per default

The default setup for an external monitor is to the right of the built-in screen. How can I change that to be to the left? Currently, everytime I plug in my screen, I have to change that in the ...
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11 views

KDE, panel often missing on boot, Splash Screen sometimes doesn't receive mouse/keyboard input

Running Kubuntu 18.04 on a lenovo ideapad Y700. I have an external monitor connected by HDMI. System settings are set to turn the laptop screen off when it's closed and the ext. moni is set as primary....
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Thinkpad T540p + Xubuntu 18.04 + old monitor

I am trying to connect an external monitor to my Thinkpad T540p. OS is Xubuntu 18.04, monitor is a Dell U3011, I am connecting the monitor using a HDMI -> Mini Displayport cable. Unfortunately my ...
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142 views

Screen goes black after VGA external monitor plugged in

Ubuntu 18.04.4 Toshiba Satellite A305 PSAG8U-04001W I want to setup an external monitor to play videos on my TV. It has a VGA port that I can plug into the side of my old Toshiba laptop. The problem ...
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Possibility of Virtual display for Ubuntu

My question here is a redirection per suggestion of my original question over here I have an i5 4th gen CPU which can support 2k displays and output 2k signal. And I have an AMD Radeon R7 graphics ...
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70 views

Ubuntu 18.04: Stuck on “started bpfilter” on boot after installing nvidia drivers

I have a Dell Mobile Precision 7530 laptop with an i7-8750H and Nvidia Quadro P2000 GPU (as well as Intel integrated graphics). The operating system is Ubuntu 18.04 (the OS along with the GPU came ...
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NVIDIA eGPU - Crashes after some time

We're experiencing the following error, after some time working on a laptop: Mar 29 14:09:13 lBoria kernel: [ 110.645559] xhci_hcd 0000:0b:00.2: remove, state 1 Mar 29 14:09:13 lBoria kernel: [ 110....
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External HDMI monitor keeps disconnecting randomly

dell inspiron n4050 Ubuntu 18.04 Primary display cracked External Display: 50 inch 4k TV disconnecting randomly and comes back after 1 to 3 seconds. No issues with windows 10 all updates installed
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Saving the Dual Monitors Position on Ubuntu 18.04 after turn on/off one of them by SUPER + P or through GUI

I have one laptop and one external monitor, setting like this : If I want to use just one screen, and turn off the laptop monitor hotkey SUPER + P or through menu GUI > Join Display/Single Display, I ...
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30 views

how to change the monitor output to HDMI in a laptop

I have a touchscreen monitor which has an embedded computer on it, which means that all the components (monitor, CPU, RAM, graphics card, etc) are all together in one piece. I need to connect a camera ...
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25 views

Ubuntu 18.04 external monitor shows some app “zoomed”

I have new ThinkPad T495, with the Ryzen 7 3700U. I installed Ubuntu server 18.04, with HWE stacks. The resolution of the laptop's screen is 1920x1080, while the resolution of the external monitor is ...
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68 views

19.10 HP notebook doesn’t show the external monitor

I have a hp notebook with Ubuntu 19.10, it doesn’t recognize my external display, which is a VGA device, and my laptop is HDMI. Also the key in my keyboard responsible for controlling don’t work. I'm ...
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85 views

Unable to connect second monitor

I am trying to connect my external auxiliary monitor with my primary display. I am running Ubuntu-18.04. I am connecting both monitors with onboard display ports. Ubuntu detects two monitors untill ...
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40 views

gnome crashes after removing docking station + DELL XPS 9570 + Ubuntu 16.04 + WD15

We are experiencing an issue after removing docking station (WD15) C-type cable from Dell XPS 9570 laptop which is running Ubuntu 16.04LTS version, system crashes and then went into blank screen and ...
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Ubuntu switching between monitor settings while booting [duplicate]

I have connected my laptop to an external monitor via a VGA cable and set up the system to use only the external one (Single Display setting) but I have some problems at the boot. When I boot the PC ...
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Laptop external monitor

Hoping somebody can help I have a dell G5 5587 laptop running Hera, I have connected to external monitor via HDMI cable. when the laptops lid is closed I can work on the external. when the laptop ...
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48 views

External TV Screen has random image noise when moving mouse

Goal: Connect laptop to docking station with external 32" TV screen. Challenge: Laptop is connected to the dock and I have three options for attaching cable to my TV screen. 1) VGA to VGA cable 2) ...
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219 views

How do I change the backlight intensity / brightness of external display ASUS Screenpad

I have the new zenbook 15 which comes with a secondary display in the touchpad. Ubuntu recognizes it just fine, as long as I am using Xorg and intel gpu. The issue however is that the brightness on ...
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45 views

After connecting a screen or sleeping, left button does not work within chrome window

This is probably more related to chrome but I'm experiencing a very odd bug where if I connect my dell xps 13 with ubuntu to a screen I suddenly lose the ability to left click in chrome. It's possible ...
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28 views

Reset displays as when plugging in an external display from the command line

I have an external display connected to my laptop on Ubuntu 19.10. When I lock the screen, the external display is often not correctly recognized and goes black. When I plug the connecting cable in ...
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272 views

Ubuntu 18.04.3 second screen detected but black

I have Lenovo thnikpad T490 with Ubuntu 18.04.3. When I connect the laptop to a docking station or directly with HDMI, it extends perfectly, but at home I have an old external Samsung monitor that ...
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86 views

External monitor flashing random colors - Kubuntu

I just installed Kubuntu (19.10) on my notebook and now my external monitor just won't work. It flashes random colors when connected. I tried changing the resolution, refresh rate, output mode etc., ...
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lenovo s1 yoga laptop freezes when connected to external monitor

I am an Ubuntu newbie here so please pardon me in advance. I just got an external monitor today and my laptop completely freezes when I connect the monitor to the laptop via HDMI and I have to reboot. ...
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1answer
525 views

External monitor not connected

I recently installed Ubuntu 18.04 into my laptop along with windows 10. Unfortunately, my external monitor which is connected into HDMI-1 is not working on Ubuntu (Not detected). I tried almost ...
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1answer
294 views

Ubuntu 19.04 on Thinkpad Yoga X390 Thunderbolt USB not working after sleep

I'm trying to solve the not working (actually partially working) Thunderbolt dock once I connect it after Ubuntu is booted. Partially, because on reconnecting Thunderbolt on the already booted system ...
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15 views

Mouse briefly halts in middle of monitor when moving down, like a sticky edge

Something really strange has been happening with my mouse and external monitor for about a week. As I slowly move my mouse, it halts for a little bit right in the middle of my screen. While it's stuck ...
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19 views

Screens are just too white

I am running Ubuntu 18.04.2 and have been doing so for a while. I have a laptop and a connected monitor. My problem is that when I am sent work by the design team I cannot see very faint colours. I ...
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13 views

Portion of External Monitor is Black When Laptop is Connected Via a Workstation

I'm running Ubuntu 18.04. Sometimes when I plug in my laptop into a workstation, one of the two external monitors (always the same one), will have a portion of it's screen black. It's always the right ...
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45 views

KDE keep warning “No External Display” all the time

I'm currently using KDE Plasma. But, since I installed it, every time when turning my computer on it shows a popup warning that there is "No External Display", its very annoying because it keeps ...
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125 views

No signal received connecting Dell monitor to laptop running Ubuntu 19.04

I am running 19.04 on a Dell XPS 15 G5070. When I plug in the HDMI cable, the laptop screen flashes like it normally does whenever I plug in a monitor. I can also see the monitor listed when I go to ...
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34 views

When I use xrandr to rotate the display on my docked laptop, my external monitor goes black

I am currently using a laptop that is docked using a usb type c cable. When I boot the computer the screen on the laptop is upside down. This is because the laptop folds into a tablet, making the ...
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222 views

External Monitor not working through eGPU

I've got Kubuntu installed on my Dell XPS 15 9560 and I've been hoping to use my external monitor with it via my eGPU (Aorus 1080 Box) to play games on. With the external GPU, all of my peripherals ...
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239 views

Sound output randomly switches or turns off while connected via HDMI

I use Ubuntu 18.04. I have a monitor which is connected via HDMI to my computer. This monitor has a headphone input: When I choose the HDMI/DisplayPort-Built-in Audio everything works as expected ...
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2answers
188 views

How do I get three monitors (HDMI and VGA and laptop internal) to work together in Ubuntu 16.04?

I have two display ports on my laptop, Lenovo G580: HDMI and VGA port. If I used one of both to extend my monitor, it works. Also, Both ports works if I turn off built-in display. However, if I turn ...
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1answer
361 views

Second display not detected in Ubuntu 18.04

I'm connecting with a HDMI cable. It was working, but for some reason stopped working, here is what I did until now? Restart the computer and connect again; Go to configurations and check if the ...
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53 views

Ubuntu 19.04 with External Monitors Closes All Applications after Sleep or Suspend and Requires 2 Logins

System: Ubuntu 19.04 - all updated are performed MSI laptop has two external monitors; after sleep/suspend, system requires two logins. First login appears to be linux core; the second login has the ...
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764 views

Ubuntu 19.04 most recent update means HDMI port not recognized

I have a Thinkpad 13 and I just updated by Ubuntu 19.04. Now it is unable to recognise HDMI output. I don't know what information to provide but would happily do so. I did try switching between '...
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248 views

Dual monitor for GeForce 940MX

I plugged in a 2nd monitor to my laptop with Ubuntu 18.04 installed. The monitor flashes with the HP logo and then stays black. I ran the command below: $ ubuntu-drivers devices == /sys/devices/...
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516 views

Ubuntu 19 how to set different monitor scaling

I have a 14 inch 4k Display on my laptop and a full hd monitor attached. I'd like to set scaling 200 om my laptop and 100 un the monitor. How can I change the scaling separately for monitors?
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External Monitors Went to dark after logging in on Ubuntu16.04

I have two external monitors connecting to my ubuntu 16.04 machine, and it is connecting to a dock station which has two external monitors wired. When turning the machine on, all the two external ...
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1answer
67 views

XFCE - Laptop monitor is not completely off when resuming from suspension (using external monitor)

I am using Xubuntu 18.04, XFCE 4.12.2 on a laptop with an external monitor. I only use the external and disable the built-in laptop monitor. When I suspend a session and resume, the built-in monitor ...
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1answer
2k views

Turn off all monitors while watching VLC media on TV

Sometimes I like to watch VLC media on my TV connected to the HDMI port on my laptop and I now have to: Start VLC on the TV: Positioned on the TV by CCSM. The screen saver is being turned off by VLC....

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