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1

Got it to work by installing the xserver-xorg-video-amdgpu package


0

The main issue here is bandwidth. According to this source which goes into detail about dasiy-chaining multiple displays using one DisplayPort 1.2 output shows that it will only support one 4K (3840x2160) display due to bandwidth issues. Taking this into account, DisplayPort 1.2 has an effective bandwidth of 17.28 Gbit/s whereas USB Type-C (USB 3.1 Gen2) has ...


2

Remember monitor setup: add it to Startup Applications There are many possible reasons why a monitor setup would not "survive" a reboot. In far most situations, the pragmatic solution is to simply make the setup run automatically on startup (log in actually). How to do that In your situation, DisplayPort-0 obviously represents the left monitor, as we can ...


0

I unchecked the "Enabled" checkbox under "System Settings -> Hardware -> Display and Monitor -> Display Configuration" for one monitor and after rechecking it, the monitor reappeared next to the other one. So it's working again now.


0

Unfortunately this is the way TwinView Dual-Display Architecture works... It 's the way Nvidia found correct to give a direct way to a X session to support multiples monitors at the time. You can try Xinerama but unfortunately you will not be able to activate compositing . https://wiki.archlinux.org/index.php/multihead


1

Compiz window placement plugin can be used to fix initial position for all windows. Install Compiz settings manager sudo apt-get install compizconfig-settings-manager Open it from dash or using ccsm command Go to Window Management → Enable Place Windows then click on it to change its settings On General tab, change Multi Output Mode: Place across ...


0

If anyone else out there has this same problem try this answer from Antoniu Mesesan HERE: xrandr --output NAME-OF-DISPLAY1 --rate 60 --mode 1920x1080 --fb 1920x1080 --panning 1920x1080* --output NAME-OF-DISPLAY2 --mode 1920x1080 --same-as NAME-OF-DISPLAY1 you can get the names of the display and supported output resolutions by simply using the xrandr ...


0

It appears you are using the noveau driver. I would suggest moving the xorg.conf out of the way, rebooting, and then configuring your desired display using the Display settings panel in System Settings. Once you've got your configuration working as desired, you can copy the ~/.config/monitors.xml file to /etc/gnome-settings-daemon/xrandr/monitors.xml to ...


1

It turns out that this is not an ubuntu problem as such. I needed an active adapter to translate the DVI signal to the mini-dp signal. Buying this thing worked for me: http://smile.amazon.com/gp/product/B004I6L6DW?psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s00


6

First of all, although it is possible to use several desktop environments with Ubuntu, that is, what I would like to call it, not recommended. Original Ubuntu comes with Unity desktop and LightDM deeply integrated into the operating system. Ubuntu GNOME is designed for being used with GNOME desktop and Kubuntu is designed for being used with KDE desktop. So ...


1

DON'T confuse this with the "Snapping Windows" setting, which can be set via "CompizConfig Settings Manager", which is downloadable from the Ubuntu Software Centre. Also works on 15.10


1

Try arandr to change screen definitions. It's in the Ubuntu repository: sudo apt-get install arandr Arandr uses draggable rectangles that represent the physical displays - like display-management-software usually does. Unlike most other software, the displays may overlap, as seen in the screenshot in this thread. You may also try to fiddle around with ...


0

I've found a solution for it... disable sticky edges in displays settings


0

might this help ? even re installing might be simpler incase you want to try some deeper digging. either is good i think https://www.debian-administration.org/article/201/Changing_X11_resolution_on_the_fly


0

First, thanks to mchid. I can't say I fixed the problem but the problem has gone away. To close the loop (pun) I'll explain where I ended up. Prior to mchid' guidance to switch users I had installed puppy. After reinstalling Lubuntu (in order to try su) I was able to log in properly without issue. Also, the external monitor became available without any ...


0

So... The next thing that happened was that I tried rebooting my machine and sort of failed, I was informed the graphics weren't properly configured. Rebooted to shell, switched back from 'gdm' to 'lightdm', and now machine is running and workspaces span both monitors. (Woohoo!)


1

First, login to your guest account and use the su command to switch users in the terminal. For example, if your username is colonelclank you should run: su colonelclank Your username should now appear at the command prompt in the terminal. Next, run the following commands to change to your user's home directory and to fix any file permission issues ...


0

Two different screen can be displayed on LCD and laptop/PC screen by disabling "Mirror displays" in display setting. No need install any additional application.


0

For those that googled this answer looking for how to disable Window sticky edges. Type ccsm (to install sudo apt-get install compizconfig-settings-manager) and filter by edge. Go to Snapping Windows > Behavior > Snap Type and uncheck Edge resistance and Edge attraction.


-1

I wanted to install a second monitor to my desktop via HDMI. In the boot process-the HDMI-port died. I fixed this by disabling the X.Org X server Nouveau display driver and to install and select the NVIDIA binary driver 340.96 in the Ubuntu Software & Updates -> Extra drivers menu. Now I got a dual screen configuration.


0

You are right that it uses a simple rectangle containing all monitors. That is the best solution currently available for Linux, but it introduces multiple bugs (across the board, not just in the window manager) whenever your arrangement does not fill up the desktop with actual screen space. I have used multiple monitors on Linux for about 6 years now, and ...


0

Just go with the official NVidia drivers directly from NVidia! for your card, NVidia is offering 352.63 http://www.nvidia.co.uk/download/driverResults.aspx/95285/en-uk and use this guide to install it: http://www.allaboutlinux.eu/remove-nouveau-and-install-nvidia-driver-in-ubuntu-15-04/ Regards


1

I reconnected HDMI cable to a second HDMI port on my monitor and it fixed the problem of "unknown display"


0

This is an odd behaviour that was unexpected and certainly not obvious. After double checking the Display Settings, it turns out that there was a small gap between my two monitors. This gap essentially meant that moving the mouse slowly did not manage to 'jump' the gap, whereas moving fast enough did. This issue is separate and distinct from sticky edges. ...


0

Error was in syntax: xinit /home/ashley/Launch_Scripts/XP64.sh -config /path/to/modified.xorg.conf Should be: xinit /home/ashley/Launch_Scripts/XP64.sh -- -config modified.xorg.conf Both xorg.conf and modified.xorg.conf are located in /etc/X11/


0

Alt + left-click anywhere in the window (E.G. the bottom) and then move it...


0

Solution: Go to Settings->Display. Turn Off Sticky edges. Solved the problem for me.


0

There is also a graphical tool in development that might work for you. No compilation because Python, but may need to install a few packages... xinput, xrandr, python-gtk2 and python-appindicator. Check it out here: http://wenhsinjen.github.io/ptxconf/


0

If you want a graphical tool that sits in you system tray, then we just created one and would like to see if it is useful to anyone else: Just select your input pen device and which screen to map it to: http://wenhsinjen.github.io/ptxconf/ We just started so its may have problem identifying your tablet or screens, so please let us know. We'll fix it ...


0

This sounds like the typical extended desktop 'problem' everyone has with pen devices. Actually Xinput system has a Coordinate Transformation Matrix that should be used to restrict the area of your desktop. But it's annoying to re-calculate and enter this matrix by hand every time you change your screen configuration. So just use this GUI tool here to select ...


0

For easy customisation I would personally recommend Kubuntu (KDE), or perhaps Ubuntu Gnome, but not Unity. Unity is quite inflexible (though with addons this can be worked around) about how you position your launcher/task manager, and how it displays. This gets more frustrating when you have multiple monitors and want to fine tune how things display. You ...


0

Most of the problems you've listed would be solved by using Unity, especially the shortcuts thing. I've been using both Unity and LXDE for quite some time. Unity has great built-in shortcuts and a very good way to handle custom shortcuts. I really can't live without them. For example you can move through workspaces using Ctrl+Alt + an arrow. To move a ...


-1

There is now a displaylink driver for Ubuntu. Installing this in Ubuntu 15.10 fixed all problems with multiple displays on the Dell D3100.


1

The cause Most likely, the issue is the result of a bug (related to the video driver). I assume the second screen is not remembered somehow, and "virtually" re- connected in a rather late stage in the start up (log in) process. Work around As often, even if it is a bug, it doesn't mean we cannot find a work around. If we: can make some kind of a ...


0

Press ALT+F2 Write: gnome-session-properties and press ENTER In the Startup applications window add a startup program In the Edit startup program window fill the fields: Name: Nitrogen Command: nitrogen --restore Comment: Set the wallpaper using Nitrogen Save the startup program and restart your session.


0

The answer here fixed it: http://ubuntuforums.org/showthread.php?t=1812872&page=2 specifically, gksudo gedit /etc/X11/xorg.conf change HorizSync 28.0 - 33.0 VertRefresh 43.0 - 72.0 to HorizSync 31.0 - 80.0 VertRefresh 56.0 - 75.0


0

I was having the same issue which seems like it was being caused by trying to set my monitor positioning using xrandr. Once I removed my startup script and renamed the .config file in my home directory so that a new one was created after logging back in, everything seems to be working like it should.



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