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Questions tagged [monitors]

Computer monitors (i.e. screens or displays). For system/application monitoring, please use the /monitoring tag.

-1
votes
0answers
18 views

Get Monitor/Display Serial Number on CentOS

I am not able to get the Monitor Serial No on CENTOS. The commands I have tried and their output is presented below: monitor-edid I get the following output Name: DELL ST2220M EISA ID: DELa06a ...
0
votes
0answers
15 views

How do I use the KDE 5 monitor calibration tool?

I recently replace my laptop monitor and have noticed it's not as crisp as the only one / my external monitors. In KDE5 there is a "System Settings Module" called Gamma that supplies different test ...
-1
votes
0answers
10 views

Ubuntu 16.04 stuck when opening lid with external monitor plugged

I'm on an ASUS VivoBookPro notebook with Ubuntu Gnome 16.04. It get's stuck when I open the lid with an external Dell monitor plugged through HDMI. I can still control the mouse, but it is restricted ...
0
votes
0answers
37 views

Turning off monitor as root, without xset

I have a script in /etc/acpi that runs when I close my laptop's lid. It turns off the internal monitor. It does this by export DISPLAY=:0 sudo -u toothrot xset dpms ...
4
votes
1answer
36 views

Can root test whether a monitor is connected?

I use a script in /etc/acpi to turn off the screen (xset dpms force off) when I close my laptop's lid. Now I want it to act differently when an external monitor is connected (set brightness to zero ...
0
votes
0answers
30 views

Blank screen after sleeping: hotplug event: connector link-state is BAD

In the past my laptop worked well, but for the past months I have had issues with the laptop screen not being able to wake up after certain events. Basically, after I suspend the laptop there is an ...
2
votes
0answers
43 views

“xset dpms force off” also logout from desktop

I'm using Arch Linux with Gnome as DE and lightdm as display manager. I have a keyboard shortcut with the xset dpms force off command for turning off the laptop monitor. When I execute this command ...
0
votes
0answers
44 views

Persistently bad screen resolution on BenQ display with Centos7

I'm running a dual monitor display with Cenos7 as the OS and Gnome 3.22.3 as the GUI. Graphics cards is an NVIDIA 1080Ti. I've tried following this post and this post, and still haven't been able to ...
1
vote
0answers
175 views

Ubuntu 16.04 can not recognize HDMI-monitor, but Ubuntu 17.10 can

I am a newbie here. Currently I am learning how to use Ubuntu, and while I am using Ubuntu 17.10. My HDMI connection to the Acer Monitor works perfectly fine. However, Ubuntu 17.10 has some problems ...
0
votes
1answer
15 views

Debian monitor out of range after install

the title says it all. I've tried adding nomodeset to the boot options from grub at startup (press "e" etc...) but it doesn't work. I also tried adding vga=795 and although it did work it doesn't get ...
1
vote
0answers
27 views

Debian 9: Backlight Flash at Boot

I've just installed a fresh new Debian 9 LXDE into an ACER AMD Notebook and everything seems to be working fine. However, during the boot, there is an annoying Strong Backlight Flash (seems like a ...
3
votes
2answers
154 views

Debian 9: Backlight Brightness

I've just installed a fresh new Debian 9 with LXDE into an ACER AMD Notebook and everything seems to be working fine, except for the backlight brightness. During the boot, it happens the following: ...
0
votes
0answers
33 views

Monitors not working correctly

I'm having this problem that when I boot into Linux my monitors stop working. Everything starts up fine. When I reach desktop then after couple of seconds my monitor just loses signal. It doesn't ...
0
votes
0answers
172 views

After upgrading to 18.04 Ubuntu monitor is unknown

Have been running Ubuntu Mate 17.10 and just upgraded to 18.04 LTS. But after upgrading my monitor settings are all wrong and can't set the proper resolution. How can I resolve this?
0
votes
1answer
45 views

Gnome - Laptop Monitor Off when Lid Closes?

I'm running Gnome (Wayland) on Arch Linux. I have configured the environment not to go to suspend, etc. when the lid is closed. When I close the lid, the monitor turns off for a second or two (as ...
1
vote
3answers
153 views

Screen lag spikes when WiFi on

I have a strange problem: Whenever WiFi is turned on (doesn't matter if connected or not), my screen freezes for a few frames every ~2-3 seconds. This does not affect the cursor, but everything else. ...
1
vote
1answer
168 views

How to make linux detect/re-probe monitors with intel i915 driver?

I have a laptop running linux with nvidia optimus/intel hybrid graphics where all outputs are connected to the intel card. It is driven by the i915 driver. An external monitor or beamer is discovered ...
0
votes
0answers
36 views

Why is color temperature set by redshift being reset at random times?

My computer run redshift at startup, in "one-shot mode": # Set color temperature to 4000K redshift -O 4000 But from time to times the color temperature is being reset, in seemingly random times. ...
0
votes
0answers
28 views

Turning off screen

In Arch Linux, is it possible to turn off the screen without going through xorg (with xset dpms force off)? I have seen that sudo vbetool dpms off is supposed to work, but it does not on my system (...
2
votes
0answers
124 views

How to switch HiDPI application resolution without restarting them

I am running GNOME 3.26 with GDM on X.org. I have an external monitor at work and I am running my Laptop (Dell XPS 9550) and the monitor in about the same resolution (regarding dpi; both around ~...
0
votes
0answers
193 views

Cannot change refresh rate in Nvidia Xserver Settings

I'm running Ubuntu 16.04 with a ViewSonic XG2703-GS monitor through DisplayPort. Whenever I go to change the refresh rate from the default 60 Hz to 144 Hz or 165 Hz I get the following error message: ...
0
votes
1answer
17 views

Everything tearing other than background image with 3 monitors

So here is my problem: System Info Displays -Display- Resolution : 9600x2160 pixels Vendor : The X.Org Foundation Version : 1.18.4 -Monitors- Monitor 0 : 1920x1080 pixels ...
1
vote
0answers
129 views

ubuntu 17.10 detects larger monitor than it is

I have my pc connected to a 42 inch LED TV and ubuntu 17.10 detects it at 52 inches. therefore I do not see all the elements of the desktop. xrandr shows me the following: Screen 0: minimun 320x200,...
0
votes
0answers
59 views

How does xorg decide which resolutions to show from EDID? Newer versions stopped offering 4K 3840x2160

Starting sometime last year, forcing the 2160p resolution manually became necessary, with reduced vertical blanking. Standard Haswell notebook setup. So, this particular installation is regularly ...
2
votes
1answer
225 views

Connect a Mac thunderbolt monitor to a DELL computer running on Arch Linux

I want to have a dual screen, with the screen of my laptop + the Mac thunderbolt monitor. I connect the Mac thunderbolt monitor on the DisplayPort of my DELL Latitude E7440 running on Arch Linux/...
0
votes
0answers
311 views

Virtual monitor for steam client on ubuntu 16.04 without monitor attached

I am trying to setup a home server machine that i can use also for Steam with Steamlink on the TV. But the server machine has no monitor attached. Tried this Solution and it work in some extent first ...
1
vote
0answers
119 views

Configure external monitor with MacBook Air

I have a MacBook Air (13-inch, Early 2015) and I run Ubuntu 16.04 on it. Under Ubuntu I cannot detect the external monitor with the thunderbolt cable. Settings -> Displays doesn't show any other ...
1
vote
1answer
75 views

Multiple monitor with virtual gap between them

I'm having a problem with my system for some time. I've been hitting this problem for some time. I looked for people with a problem similar to mine but found none. I use 3 monitors in portrait mode ...
0
votes
0answers
578 views

Fix resolution on second screen in a dual monitor mirroring setup by adding black bars

I have a monitor connected to my laptop. The monitors physical resolution is 1920x1200 (16:10) while the laptop's built in display's is 1920x1080 (16:9). When I mirror the display I currently have two ...
1
vote
0answers
95 views

External monitor zooms out when lid is closed in fedora 27

I didn't have this issue in fedora 26, I always closed my lid, now this happens (Screenshots taken in fullscreen) lid open lid closed Similar I guess is this ubuntu bug, any solution? Edit: Lid ...
1
vote
1answer
221 views

How to get monitor width using xrandr --query?

I have a shell script, that loops through xrandr to find connected monitors, which get assigned inside of a variable. Inside that loop, I want to have another loop that determines the width of said ...
2
votes
0answers
423 views

New i5 Kaby Lake computer with Intel HD 620 booting to black screen

I just got a new Gigabyte Brix machine (https://www.gigabyte.com/Mini-PcBarebone/GB-BKi5A-7200-rev-10#ov). It has an Intel HD 620 graphics chip. I've been trying to install Linux on it but no luck. I'...
0
votes
0answers
50 views

Two monitor configuration issues on Debian on boot

I install fresh preseed installation which has two monitors configured. Everything seems to work fine. When I boot up my computer only 1 monitor is working (other one seems to be in standby mode). ...
1
vote
1answer
209 views

Screen artifacts after the first boot

During the first boot the monitor whistles for a while, and the mouse pointer has a strange artifact: But after "Log out" / "Log in" - everything is fine. Any ideas what it can be and how to resolve? ...
2
votes
0answers
2k views

how to enable full resolution on large monitor (in KDE)?

I have a BenQ gw2765 monitor with 2560x1440 resolution... but my computer will only give it a maximum of 1920x1080 resolution. The monitor is connected to my Lenovo Thinkpad X1 laptop via an HDMI-...
2
votes
1answer
1k views

xrandr will not detect monitor on DisplayPort [closed]

I recently got a new ViewSonic Monitor and was configuring it to 144 Hz using XRandr. It seems I messed something up and now, I can't get my monitor to work using DisplayPort. Only HDMI works. This ...
2
votes
1answer
51 views

Determine resolution of a display on a remote systyem?

How can I determine the resolution of a display on a remote system. If I use xrandr it displays the resolution of my local screen: me@rome:~$ ssh -X road me@road's password: Welcome to Ubuntu 17.10 (...
1
vote
0answers
38 views

Screen tearing after suspension Mint

It is rather simple, whenever I put my machine to sleep and wake it up I always have slight tear, only in my main monitors right hand side of the monitor, around 10% is torn. The only way to clear ...
2
votes
0answers
357 views

Monitor Low resolution - Frequency too high

I am running with 2 external monitors, one by HDMI the other by VGA. The monitor that is causing trouble is the VGA one. But are the same model, and both work with HDMI. However when I plug in the VGA ...
0
votes
0answers
26 views

How to reset App back to the only monitor?

I often "lose" my Google Chrome after using it on second monitor. After disconnecting the monitor, I cannot find a way to get Chrome back, other than restarting the system. Closing the app with ...
4
votes
1answer
261 views

Mouse pointer leaves trail

I've just started using Linux on my laptop, and I am facing some difficulties working with an external monitor. At first, I tried connecting with HDMI, but then the resolution was limited. Also the ...
0
votes
1answer
21 views

Application opening on secondary monitor covers the top panel when moved to primary

I am running an application (Think or Swim) that doesn't have a title bar, and it is now opening on the secondary monitor and covers the top panel (application does not resize, but stays fullscreen as ...
3
votes
0answers
377 views

“Virtual Super Resolution”

I am looking to replicate the effect of "virtual super resolution". This seems to be a bit more commonplace in Windows systems (being built right into the Radeon Crimson driver provided by AMD). Being ...
1
vote
2answers
407 views

Why does my 1440p HDMI monitor only display correctly when running from the bootable USB?

I recently brought home a 1440p HDMI 60 Hz monitor. However, on Ubuntu and Fedora it has problems displaying correctly. Some images of the problem are here: https://imgur.com/a/GP2ce Initially, I had ...
1
vote
1answer
35 views

Stop windows from being rearranged when an monitor is disconnected

I have two laptops and just got an KVM to switch between them. But on my Linux Ubuntu 16, when I switch the screen rearranges and moves all windows around. So when I switch back, I can't work out ...
5
votes
1answer
183 views

My monitor is partially broken. How can I decrease the viewable space using xrandr or any similar tool?

My secondary monitor is partially broken in the top 1/3 of the screen so I want to add blackbars and have something like in the picture below. The top part it's how everything is now. The bottom part ...
2
votes
1answer
470 views

Do the “right” xrandr calls when I connect/disconnect monitors

So I have a laptop I take to work and connect to a big monitor. Right now, when I get to work I do the following Connect my laptop to the monitor run xrandr --output DP1 --mode 2560x1600 --right-of ...
0
votes
2answers
2k views

4 monitors, 2 NVIDIA video cards - ubuntu not working

I know this question has been asked before but I trully don't understand how to make it work on my computer too. I have two video cards lspci | grep VGA 01:00.0 VGA compatible controller: NVIDIA ...
1
vote
0answers
128 views

Udev notification if and only if I plug external monitor

I want to send a notification to my application if and only if the user plugs an external monitor (i.e. the connector becames connected). My output of command udevadm info -a -p /sys/class/drm/card1-...
2
votes
3answers
1k views

UltraWide display not working with AMD GPU on Debian 9

I have a Radeon HD 6950 GPU and a LG 21:9 monitor (LED IPS 25 Full HD 25UM58-P.AWZ). Problem I recently installed Debian 9 (stretch) and can't get the display to show in 2560x1080, just 1920x1080 (...