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8 votes

How can I disable the rounded display corners Gala plugin?

This was a design decision made by the developers for Freya. There are some settings for Gala (the window manager in elementary OS) that control the corner masking. You can install dconf-editor (sudo ...
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  • 1,250
6 votes

How do I change my display brightness?

Proper way to do it should be via System Settings -> Power -> Display brightness
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  • 862
6 votes
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Black Screen after GRUB (Windows 8.1 dualboot)

Try adding nomodeset to the boot. Here's how to do it: Press and hold the Shift button which will show you a GRUB screen containing a list of kernels and recovery options. Press e to edit the ...
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  • 76
6 votes
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NOTHING works to prevent screen locking while watching videos

sudo add-apt-repository ppa:nilarimogard/webupd8 sudo apt-get update sudo apt-get install caffeine-plus It works fine on Freya.
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  • 474
6 votes

How to set hot corners on a second display

It seems that as of now, elementary designs hot-corners to work like wingpanel and the dock and show them only on the primary display. https://bugs.launchpad.net/elementaryos/+bug/1385296 https://...
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  • 4,930
6 votes

How to change display resolution

First run: sudo apt-get install mesa-utils Now logout/ login. Go to settings --> Display If you have multiple displays and they are not mirrored, you can have different settings on each display. ...
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  • 7,877
5 votes

Pantheon-greeter login screen has incorrect resolution on external monitor

xrandr allows us to reconfigure the X server without restarting it. Let's use it to set the correct resolution at startup. Find out how the monitors are identified on your system. At the terminal, ...
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  • 379
5 votes
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How do I turn off the backlight (laptop)

You could just open up the terminal and type this: xset dpms force off Once you press Enter to execute the command, it'll turn off your monitor instantly. This works with every X server. If you ...
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  • 3,216
5 votes
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Laptop + HDMI external monitor issue?

I just recreated the problem and was able to fix it by deleting the ~/.config/monitors.xml file. Note that by deleting this file all settings for displays will be lost. The file is in a hidden ...
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  • 337
4 votes

WIndows Opening Off Screen

Quick answer to your second question. You can drag a window by clicking anywhere inside of it with the combination Super + left click.
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  • 1,413
4 votes

Using third-party apps on a high DPI (Retina) display

When launching Chromium web apps you can pass the flag --force-device-scale-factor=2 to get properly scaled content on HiDPI. Ideally you should add it to the respective .desktop file of the app so ...
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  • 310
4 votes

Using third-party apps on a high DPI (Retina) display

Unfortunately, this is something that has to be fixed by those app or toolkit developers. For example, Google Chrome only just recently started to support HiDPI. Most Gtk3 apps (like the ones we ship ...
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  • 9,724
4 votes

Screen flicker, blink, pulse, flash

If you have an intel graphic chip, you could try comment nr 5 Screen flickering solution
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  • 815
4 votes

Multiple Monitors not functioning properly

(This might be a bug, but on my system, Loki's Displays settings do not naturally let users stack screens atop each other, either with the secondary directly above the primary or vice versa, though I ...
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  • 4,224
4 votes

Making brightness work on Elementary OS Loki with fn key

I found this: answer and this worked for me from his answer: P.S: I have asus too, but I got X550JX model.
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4 votes

Screen mess up - VMware Workstation on Elementary OS

vmware-workstation works without problems with the root user, however, it is very annoying to open the terminal to open the program and believe that the icon is useless. I found a way to bypass the ...
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  • 151
3 votes
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Secondary monitor not working

Fortunately I seem to have ran into a solution for Elementary OS and felt it would be best to share it. Open up the application launcher and search for Additional Drivers and select 'Using Video ...
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3 votes

Mirroring screen

Windows+P to switch between mirrored and extended mode :) (same shortcut as in Windows ;) )
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3 votes

Laptop + HDMI external monitor issue?

Press CTRL+ALT+F1 to open a TTY virtual terminal.Then type your username and password and once you have logged in type rm ~/.config/monitors.xml and press ENTER to delete the file @joost said about. ...
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  • 2,733
3 votes

Screen tearing and graphical glitches in Loki

To fix Firefox tearing, try opening about:config, setting gfx.xrender.enabled to true, then restart Firefox.
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  • 180
3 votes

How can I have one plank on each of my monitors

You need either dconf-editor or command-line tool gsettings. You can change the value of net.launchpad.plank.enabled_docks to ['dock1','dock2'] in order to enable a second dock, restart plank, change ...
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  • 4,492
3 votes

Cycle through all applications, across workspaces

Nope, without custom scripting, the OS only supports switching between windows in a workspace ("Switch Windows" in Settings > Keyboard) and switching between workspaces (org.pantheon.desktop.gala....
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  • 4,224
3 votes

Log-in screen shows up on secondary monitor

I was able to fix this by setting the correct primary monitor via LightDM. LightDM is elementaryOS's lock screen (aka pantheon-greeter) First you need to find the name for your primary monitor using ...
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3 votes

My laptop screen has gone red even after I installed redshift and it's not going away

Even though you've removed Redshift, it seems it has "permanently" altered your display settings. Try running: xrandr --output eDP-1 --gamma 0.9:0.9:0.9 eDP-1 is the name of my monitor, yours may ...
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3 votes

Too much contrast/exposure? (I think)

This seems to be a bug in Gala, see issue Tracker.
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  • 1,537
3 votes

Monitor settings do not work. Cannot disable integrated screen of the laptop

default integrated monitor is not always LVDS-1 first you should get overview of detected displays and their aliases by command xrandr | grep " connected " | awk '{ print$1 }' then cast xrandr --...
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  • 51
3 votes

how to fix bug in the windows of elementary os

This is a known issue in Elementary OS due to their somewhat non-standard way of applying window decorations. Fortunately, there is a fix, but it must be applied on a per-application basis. In fact on ...
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3 votes
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screen flip issue with Juno 5.0 on HP 840 G1

If this sudo systemctl stop iio-sensor-proxy.service works temporarily for you, then disable it so next time you reboot, it will not load To disable it: sudo systemctl disable iio-sensor-proxy....
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  • 1,942
3 votes
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Can't un-mirror display for dual monitors - Juno

OK - After digging around I found the Windows-P key on the keyboard somehow should it lose. This solution was buried in the comments here: https://www.reddit.com/r/linux4noobs/comments/3kohhd/...
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3 votes
Accepted

Is brightness control supposed to work on desktop systems / external displays?

This is not specific to a elementary. External monitors configurations are managed by themselves. You can control your laptops brightness because the monitor is directly managed by your laptops ...
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