Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [monitors]

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

0
votes
0answers
18 views

Dim monitor after some time of inactivity

I would like to have my monitor dimmed (i.e. have a black screen) after some time of inactivity but still functional so that its speakers are on and music can be played. Looking for a correct setting ...
6
votes
1answer
109 views

Xrandr problem trying to avoid broken display

Days ago I broke my laptop display by accident, the right side of the screen is damage but the most part of the left side is usable. I do some research trying to find a way to modify the dimension of ...
2
votes
0answers
22 views

Why does xdpyinfo and xrandr give different measurements?

I'm trying to calculate the size of my 2 screens together. Using xdpyinfo, I see the following: xdpyinfo | grep 'dimensions:' dimensions: 5120x1600 pixels (1355x423 millimeters) However, ...
1
vote
0answers
30 views

How to stop internal laptop screen from turning off when closing lid?

When closing my laptop, it turns off the internal screen, which moves all windows to the second screen. I realise that I could move all windows to a secondary workspace to not have them overlap the ...
1
vote
0answers
9 views

Issue All-In-One Inspiron 2310 Monitor Volume Keys

At the side panel from my all in one monitor, there are 2 keys for raising and lowering volume (see picture). After installing Ubuntu 16.04.03, both keys working proper but after the first system ...
0
votes
0answers
35 views

xrandr not detecting old monitor

Xrandr, nor any other program, is detecting my second monitor; as in, xrandr acts like the second monitor doesn't even exist when it's connected. I think it could be due to the fact that both the ...
2
votes
2answers
98 views

Force monitor detection, low level

My external monitor (dell) is not detected on my Asus Laptop if I switch it on only after I booted the laptop. The case similar to How to make linux detect/re-probe monitors with intel i915 driver?, ...
0
votes
1answer
107 views

“Custom” DPI on Linux Mint Mate

So it's known that Mate and Cinnamon desktop environments only allow the options "Normal" and "Double DPI" in user interface scaling, unlike Ubuntu which you can change with a slider. These two ...
1
vote
1answer
102 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 ...
0
votes
0answers
48 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
48 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 ...
1
vote
0answers
79 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
108 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
111 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
789 views

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

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 about apt-get ...
0
votes
1answer
18 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
40 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
412 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
37 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 ...
1
vote
1answer
701 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
53 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
156 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
429 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
54 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
81 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
144 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
241 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
141 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
81 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
287 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
419 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
191 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
90 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
715 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
116 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
328 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
459 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
54 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
259 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
2k 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
93 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
42 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
396 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
362 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
23 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
465 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
464 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 ...