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Dual/Multiple monitors - only able to use one at a time?

dual displays focus firefox instability multi-display

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#1 Oblio

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Posted 31 August 2017 - 12:57 AM

Hello Community and Team!

 

It's been a crazy summer - great to see everyone again!  Lots of house projects, kids being in the hospital (pneumonia, heart surgery), work, work, more work :)

 

 

I'm running into an issue where I am not able to use my secondary monitor if I have anything displayed on my primary monitor (or vice versa) - programs, if I am able to move them to the second monitor, become unresponsive (cannot click/enter text) or the programs shoot off into outerspace...and are basically "gone". 

 

I have tried playing with geometry, focus and window settings without luck.  I have not changed any X Server settings (that I am aware of...)

 

I originally thought this only effected Firefox when I started a new tab and dragged it to the secondary monitor, but since have found it is most (all?) programs.

 

I have been experiencing this issue for a while but have just finally had time to post - finally, the time has come!  Things were working fine at one point...I wish I could pin-point when they stopped a bit better...maybe 3-4 months ago? 

 

I'm using Nvidia X Server, running a GTX570.  Some other basics... Nvidia driver version 375.66.  4.4.0-36-generic... please let me know what else is needed to assist.

 

Thank you everyone!  :)


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#2 Jeff

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Posted 31 August 2017 - 01:46 AM

How have you configured your second screen? Using the nvidia settings panel or something else? 



#3 Oblio

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Posted 31 August 2017 - 02:26 AM

Yes, I have used the Nvidia settings panel.  The only thing that changed is that I'm using absolute positioning for the second monitor - I was previously as well, but due to getting some studio monitors I had to raise the secondary monitor up another foot/foot-and-a-half.  The mouse moves smoothly from one to the other...try to imagine a central monitor with another one off of the upper right-hand corner...my secondary monitor's lower left corner nearly touches the primary's upper right (if that makes sense?)...an odd configuration, but how my limited desk space allows things to be (no VESA on secondary :(

 

I'm sure it's just something simple I am missing. 

 

Thank you, Jeff!


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#4 Jeff

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Posted 31 August 2017 - 04:26 AM

Have you tried using newer / different nvidia drivers? Could be a driver bug causing your issues. 



#5 DOOMguy

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Posted 31 August 2017 - 10:45 AM

Can you duplicate that (somewhat odd) screen layout in Settings>Screen setup? The nvidia configuration tool also has a checkbox to Restore on startup; I suppose you have that checked as well?

 

Don't forget to issue a similar xrandr command -- see if the issue persists there as well. The xrandr or arandr seems redundant but helps validate the setup; see if the output of xrandr -q matches your preferred setup/geometry.

 

Try a PrintScreen using the Moksha Menu or your shortcut key--this is what your computer "sees". This and the xrandr -q output will help us troubleshoot the issue.


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#6 Oblio

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Posted 31 August 2017 - 12:49 PM

Have you tried using newer / different nvidia drivers? Could be a driver bug causing your issues. 

Sounds like a solid plan - I just wanted to make sure it wasn't some setting in Bodhi that I overlooked.

 

Can you duplicate that (somewhat odd) screen layout in Settings>Screen setup? The nvidia configuration tool also has a checkbox to Restore on startup; I suppose you have that checked as well?

 

Don't forget to issue a similar xrandr command -- see if the issue persists there as well. The xrandr or arandr seems redundant but helps validate the setup; see if the output of xrandr -q matches your preferred setup/geometry.

 

Try a PrintScreen using the Moksha Menu or your shortcut key--this is what your computer "sees". This and the xrandr -q output will help us troubleshoot the issue.

I'll take a screen shot and try to show my Nvidia control panel settings if that helps...btw...how would one insert a screenshot into the forums?  I think that may be helpful.  I'll check into xrandr and see.  

 

The PrintScreen check is a really great idea :)

 

Thank you both kindly for the assistance!  I'll likely test tonight once home from work and update.


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#7 birdmun

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Posted 31 August 2017 - 03:37 PM

Posting screenshots is as simple as uploading your pic to an image sharing site and then using the square "picture" icon under the smiley face to insert an image url.



#8 Jeff

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Posted 01 September 2017 - 01:15 AM

Bodhi's default image viewer that screenshots open in after taken will upload files for you. Just right click on the image and hit upload. It will spit a URL at you to share a few moments later. 



#9 Oblio

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Posted 01 September 2017 - 04:04 AM

Handy trick to know with ePhoto!  Thank you!

 

Overall layout - lower monitor is primary.  Upper right is secondary.

 

http://i.imgur.com/fYzsSzc.jpg

 

Primary monitor - X server

 

http://i.imgur.com/sZTr1wg.jpg

 

Secondary - X server

 

http://i.imgur.com/oRDNxrW.jpg

 

arandr

 

http://i.imgur.com/DBA6aWX.jpg

 

after trying to move terminology to the secondary monitor - it started rapidly "flashing" and when I let go, this is where it ends up (and can't really move it).  If I move a firefox tab to the secondary monitor, I can use that new tab, but anything on my primary is not able to be clicked/typed/etc.

 

http://i.imgur.com/cp4BWz5.jpg

 

xrandr output:

Screen 0: minimum 8 x 8, current 4480 x 2237, maximum 16384 x 16384

DVI-I-0 disconnected (normal left inverted right x axis y axis)

DVI-I-1 disconnected (normal left inverted right x axis y axis)

DVI-I-2 connected primary 2560x1440+0+797 (normal left inverted right x axis y axis) 597mm x 336mm

   2560x1440     59.95*+

   1920x1200     59.88

   1920x1080     60.00

   1680x1050     59.95

   1600x1200     60.00

   1440x900      74.98    59.89

   1280x1024     75.02    60.02

   1280x720      60.00

   1024x768      75.03    60.00

   800x600       75.00    60.32

   640x480       75.00    72.81    59.94

HDMI-0 disconnected (normal left inverted right x axis y axis)

DVI-I-3 connected 1920x1080+2560+0 (normal left inverted right x axis y axis) 510mm x 290mm

   1920x1080     60.00*+  59.94    50.00    60.05    60.00    50.04

   1680x1050     59.95

   1600x1200     60.00

   1440x900      59.89

   1280x1024     75.02    60.02

   1280x960      60.00

   1280x720      60.00    59.94    50.00

   1152x864      75.00

   1024x768      75.03    70.07    60.00

   800x600       75.00    72.19    60.32    56.25

   720x576       50.00

   720x480       59.94

   640x480       75.00    72.81    59.94    59.93


Xeon E3-1220 v3 3.1GHz Quad, ASRock Rack E3C224, 2x 8GB Kingston KVR16E11/8I DDR3-1600 ECC CL11 Intel Chips (Dual Channel), EVGA GeForce GTX 570, Samsung SM863 120GB OS SSD, 2x WD RED 3TB HDDs (Raid 0), Focusrite Scarlett 2i4, Antec Earthwatts EA-750 80 Plus Platinum 750w PSU - Bodhi 4.1.0 64

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#10 Oblio

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Posted 01 September 2017 - 04:13 AM

DOOMguy - didn't make it to IRC tonight... :(


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#11 gohlip

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Posted 01 September 2017 - 10:49 AM

Try this command and see if that helps

xrandr --auto --output DVII2 --mode 2560x1440 --left-of DVII3 && xrandr --auto --output DVII3 --mode 1920x1080 --right-of DVII2

ps: usually it's just DVI1 and DVI2, etc.. so if above won't work, try with

xrandr --auto --output DVI2 --mode 2560x1440 --left-of DVI3 && xrandr --auto --output DVI3 --mode 1920x1080 --right-of DVI2

If command work, then either put in bash command (if not permanent), autostart or others places you want to.


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#12 DOOMguy

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Posted 01 September 2017 - 10:49 AM

No worries; these are enough. Fix it in nvidia control center -- your x,y coordinates for the secondary are forcing a level secondary monitor, when in reality it is raised to the height of your primary. They are not making sense. This is what should be shown for the second monitor

 

1920x1080+2560+1440 for viewport out. Position for the ancor monitor should be 2560+1440 instead of 2560+0. Absolute is fine, except in this case it is absolutely wrong. It is placed where the bottom left corner touches the upper righthand corner of the Acer/primary. Putting it at 2560+0 throws it out of whack, and programs placed on anything but primary are rendered unusable.

 

Hit Save to X configuration file. Try Gohlip's suggestion after to get familiar with xrandr, but I prefer you fix nvidia settings first, though I think his xrandr is missing the --position parameter (at first glance). I think it will place the secondary to the right, but not elevate it i.e. there won't be a "lower" or "upper"

 

The forum will be sufficient for our needs, but it gets messy if you try all things at once. Their assistance is appreciated.

 

As a test if the nvidia settings are spot-on, try this: for Window placement, select place windows under the mouse, and put the new window or application on the raised secondary. Put a terminology screen there, not maxed, not full screen, and make sure that you can type or right-click on it to select a font or theme (in terminology). If clicking or typing gets no response it can only mean one thing--you're missing something.

 

Now hit PrintScreen. It would be nice to see, say a browser on one screen and the nyanology theme in terminology, on the other.

 

Arandr is good, but knowing how to use xrandr is even better, for a guy with dual DVI, it can be your Swiss Army knife. But if you know your Xorg.conf you should be fine; there is a place for specifying the layout. The nvidia control center can fine tune it. All these should sync--the only thing that is absolute should be where (0,0) is; it begins at the lower lefthand corner of the primary screen.


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#13 Jeff

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Posted 01 September 2017 - 12:09 PM

If you hold the alt key and left click and drag down on the window when it is off the monitor does it let you drag it back on screen? 



#14 Oblio

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Posted 01 September 2017 - 12:42 PM

Thank you, gohlip and DOOMguy - I will give these items a shot this weekend and post the results (or mark as solved).

 

If you hold the alt key and left click and drag down on the window when it is off the monitor does it let you drag it back on screen? 

 

I figured there was a way to easily move a window without just using the top bar/title bar...thank you for this - how did I live before!  I will have to try this.

 

Thank you everyone!


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#15 DOOMguy

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Posted 01 September 2017 - 04:09 PM

One thing to keep in mind: Working with xorg.conf winds up beneficial for you and your system. It may be an unusual setup now, but later on you might decide to add one or two more displays. Or you decide to get one huge 4k display. Or you wanted to try a different distro. Instead of counting on this distro to guess or autodetect your displays, why not bring over a configuration that you know/modified will work?

 

Once you have tweaked and finalized xorg.conf, make a copy of it on a thumb drive. Pop in the next live CD or live USB that you wanted to try out. Now, you can let it figure out your display configuration, but if it does a poor attempt, put your saved xorg.conf in its proper place, and try again. You can now give that distro a proper test drive, all set and ready to go with multihead.


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#16 DOOMguy

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Posted 01 September 2017 - 07:25 PM

You can Alt-drag a window to the other monitor, or use the pager, or a keybind. But once you have your displays working to perfection, you can set focus to sloppy or click to focus so that you are free to type in any window or application; even experiment with Place window under mouse.


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