Dual monitor setup on a laptop: internal monitor peeking through on external display












5














Recently I began to use my laptop (Dell Inspiron N5020) with an external display. I use the displays side-by-side, internal on the left, external on the right.



The problem is, however, that the display on the external monitor seems to be shifted to the right by a few pixels, and at the same time a few pixel wide column from the right edge of the internal display is duplicated on the left edge of the external. On a screenshot this is not visible. I illustrated what I'm actually talking about on this image: Illustration of the problem



The type of the external monitor doesn't seem to matter. Same thing with a Medion 1680x1050 monitor with VGA connector, and a Dell U2311H through HDMI. Also I tried to set various resolution combinations, and it seems to only happen when the internal monitor is at its native resolution (which is 1366x768)



(I have Linux Mint 15 x64 with Cinnamon.)










share|improve this question
























  • You should check the output of xrandr to ensure that the two displays are not overlapping in their layout. They probably aren't, but it's worth checking, especially if your mouse is really showing on two monitors the way you depict it. You can easily rearrange the windows using the GUI-based arandr or using xrandr command-line options. (Another possibility is that perhaps you're just seeing the window decorations crossing over. I've experienced this in several WMs.)
    – billyjmc
    Nov 8 '13 at 4:00










  • I use arandr and xrandr, the displays definitely aren't overlapping. Also I found a workaround: I saved the setup script with arandr, then shifted the right display by two pixels to the right, so that logically there is a two pixel wide gap between them. Visually it's totally fine. If I take a screenshot, the gap is filled with random garbled pixels, which aren't visible physically. Drawback however: the mouse is not stopped at the inner edges of the screens. So I can't place auto hiding panels to the top of the internal display, or the bottom of the external one.
    – Emoryy
    Oct 15 '14 at 14:41
















5














Recently I began to use my laptop (Dell Inspiron N5020) with an external display. I use the displays side-by-side, internal on the left, external on the right.



The problem is, however, that the display on the external monitor seems to be shifted to the right by a few pixels, and at the same time a few pixel wide column from the right edge of the internal display is duplicated on the left edge of the external. On a screenshot this is not visible. I illustrated what I'm actually talking about on this image: Illustration of the problem



The type of the external monitor doesn't seem to matter. Same thing with a Medion 1680x1050 monitor with VGA connector, and a Dell U2311H through HDMI. Also I tried to set various resolution combinations, and it seems to only happen when the internal monitor is at its native resolution (which is 1366x768)



(I have Linux Mint 15 x64 with Cinnamon.)










share|improve this question
























  • You should check the output of xrandr to ensure that the two displays are not overlapping in their layout. They probably aren't, but it's worth checking, especially if your mouse is really showing on two monitors the way you depict it. You can easily rearrange the windows using the GUI-based arandr or using xrandr command-line options. (Another possibility is that perhaps you're just seeing the window decorations crossing over. I've experienced this in several WMs.)
    – billyjmc
    Nov 8 '13 at 4:00










  • I use arandr and xrandr, the displays definitely aren't overlapping. Also I found a workaround: I saved the setup script with arandr, then shifted the right display by two pixels to the right, so that logically there is a two pixel wide gap between them. Visually it's totally fine. If I take a screenshot, the gap is filled with random garbled pixels, which aren't visible physically. Drawback however: the mouse is not stopped at the inner edges of the screens. So I can't place auto hiding panels to the top of the internal display, or the bottom of the external one.
    – Emoryy
    Oct 15 '14 at 14:41














5












5








5







Recently I began to use my laptop (Dell Inspiron N5020) with an external display. I use the displays side-by-side, internal on the left, external on the right.



The problem is, however, that the display on the external monitor seems to be shifted to the right by a few pixels, and at the same time a few pixel wide column from the right edge of the internal display is duplicated on the left edge of the external. On a screenshot this is not visible. I illustrated what I'm actually talking about on this image: Illustration of the problem



The type of the external monitor doesn't seem to matter. Same thing with a Medion 1680x1050 monitor with VGA connector, and a Dell U2311H through HDMI. Also I tried to set various resolution combinations, and it seems to only happen when the internal monitor is at its native resolution (which is 1366x768)



(I have Linux Mint 15 x64 with Cinnamon.)










share|improve this question















Recently I began to use my laptop (Dell Inspiron N5020) with an external display. I use the displays side-by-side, internal on the left, external on the right.



The problem is, however, that the display on the external monitor seems to be shifted to the right by a few pixels, and at the same time a few pixel wide column from the right edge of the internal display is duplicated on the left edge of the external. On a screenshot this is not visible. I illustrated what I'm actually talking about on this image: Illustration of the problem



The type of the external monitor doesn't seem to matter. Same thing with a Medion 1680x1050 monitor with VGA connector, and a Dell U2311H through HDMI. Also I tried to set various resolution combinations, and it seems to only happen when the internal monitor is at its native resolution (which is 1366x768)



(I have Linux Mint 15 x64 with Cinnamon.)







linux-mint cinnamon multi-monitor laptop






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 19 '17 at 15:04









Jeff Schaller

38.6k1053125




38.6k1053125










asked Oct 10 '13 at 19:41









Emoryy

614




614












  • You should check the output of xrandr to ensure that the two displays are not overlapping in their layout. They probably aren't, but it's worth checking, especially if your mouse is really showing on two monitors the way you depict it. You can easily rearrange the windows using the GUI-based arandr or using xrandr command-line options. (Another possibility is that perhaps you're just seeing the window decorations crossing over. I've experienced this in several WMs.)
    – billyjmc
    Nov 8 '13 at 4:00










  • I use arandr and xrandr, the displays definitely aren't overlapping. Also I found a workaround: I saved the setup script with arandr, then shifted the right display by two pixels to the right, so that logically there is a two pixel wide gap between them. Visually it's totally fine. If I take a screenshot, the gap is filled with random garbled pixels, which aren't visible physically. Drawback however: the mouse is not stopped at the inner edges of the screens. So I can't place auto hiding panels to the top of the internal display, or the bottom of the external one.
    – Emoryy
    Oct 15 '14 at 14:41


















  • You should check the output of xrandr to ensure that the two displays are not overlapping in their layout. They probably aren't, but it's worth checking, especially if your mouse is really showing on two monitors the way you depict it. You can easily rearrange the windows using the GUI-based arandr or using xrandr command-line options. (Another possibility is that perhaps you're just seeing the window decorations crossing over. I've experienced this in several WMs.)
    – billyjmc
    Nov 8 '13 at 4:00










  • I use arandr and xrandr, the displays definitely aren't overlapping. Also I found a workaround: I saved the setup script with arandr, then shifted the right display by two pixels to the right, so that logically there is a two pixel wide gap between them. Visually it's totally fine. If I take a screenshot, the gap is filled with random garbled pixels, which aren't visible physically. Drawback however: the mouse is not stopped at the inner edges of the screens. So I can't place auto hiding panels to the top of the internal display, or the bottom of the external one.
    – Emoryy
    Oct 15 '14 at 14:41
















You should check the output of xrandr to ensure that the two displays are not overlapping in their layout. They probably aren't, but it's worth checking, especially if your mouse is really showing on two monitors the way you depict it. You can easily rearrange the windows using the GUI-based arandr or using xrandr command-line options. (Another possibility is that perhaps you're just seeing the window decorations crossing over. I've experienced this in several WMs.)
– billyjmc
Nov 8 '13 at 4:00




You should check the output of xrandr to ensure that the two displays are not overlapping in their layout. They probably aren't, but it's worth checking, especially if your mouse is really showing on two monitors the way you depict it. You can easily rearrange the windows using the GUI-based arandr or using xrandr command-line options. (Another possibility is that perhaps you're just seeing the window decorations crossing over. I've experienced this in several WMs.)
– billyjmc
Nov 8 '13 at 4:00












I use arandr and xrandr, the displays definitely aren't overlapping. Also I found a workaround: I saved the setup script with arandr, then shifted the right display by two pixels to the right, so that logically there is a two pixel wide gap between them. Visually it's totally fine. If I take a screenshot, the gap is filled with random garbled pixels, which aren't visible physically. Drawback however: the mouse is not stopped at the inner edges of the screens. So I can't place auto hiding panels to the top of the internal display, or the bottom of the external one.
– Emoryy
Oct 15 '14 at 14:41




I use arandr and xrandr, the displays definitely aren't overlapping. Also I found a workaround: I saved the setup script with arandr, then shifted the right display by two pixels to the right, so that logically there is a two pixel wide gap between them. Visually it's totally fine. If I take a screenshot, the gap is filled with random garbled pixels, which aren't visible physically. Drawback however: the mouse is not stopped at the inner edges of the screens. So I can't place auto hiding panels to the top of the internal display, or the bottom of the external one.
– Emoryy
Oct 15 '14 at 14:41










2 Answers
2






active

oldest

votes


















0














I had the exactly same problem, but found a different solution that does not have the drawbacks of your proposed solution. It turned out that there was a 2 pixel wide unused column on the left side of my arrangement, so instead of shifting the right display to the right, I shifted the left display (internal) to the left, covering that unused column. Everything is fine now. Here is how my scripts looks like:



xrandr --output VGA-0 --off --output LVDS --mode 1366x768 --pos -2x312 --rotate normal --output HDMI-0 --primary --mode 1920x1080 --pos 1366x0 --rotate normal


Observe the -2 on the first


--pos
argument.




share|improve this answer





















  • Thanks, I tried it. But it seems the mouse still doesn't stop at the inner edges - at least this is the case in XFCE.
    – Emoryy
    Sep 16 '15 at 7:47










  • I see what you mean. In my case I only get that in one of the borders, in which I don't need it to stop. Let's keep waiting for a better solution then.
    – lasaro
    Oct 16 '15 at 15:46



















0














How did you configure the desktop layout? If you used the GUI tool to do so, check to see if you have accidentally positioned the 2 screens overlapping slightly.






share|improve this answer





















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    2 Answers
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    2 Answers
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    active

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    0














    I had the exactly same problem, but found a different solution that does not have the drawbacks of your proposed solution. It turned out that there was a 2 pixel wide unused column on the left side of my arrangement, so instead of shifting the right display to the right, I shifted the left display (internal) to the left, covering that unused column. Everything is fine now. Here is how my scripts looks like:



    xrandr --output VGA-0 --off --output LVDS --mode 1366x768 --pos -2x312 --rotate normal --output HDMI-0 --primary --mode 1920x1080 --pos 1366x0 --rotate normal


    Observe the -2 on the first


    --pos
    argument.




    share|improve this answer





















    • Thanks, I tried it. But it seems the mouse still doesn't stop at the inner edges - at least this is the case in XFCE.
      – Emoryy
      Sep 16 '15 at 7:47










    • I see what you mean. In my case I only get that in one of the borders, in which I don't need it to stop. Let's keep waiting for a better solution then.
      – lasaro
      Oct 16 '15 at 15:46
















    0














    I had the exactly same problem, but found a different solution that does not have the drawbacks of your proposed solution. It turned out that there was a 2 pixel wide unused column on the left side of my arrangement, so instead of shifting the right display to the right, I shifted the left display (internal) to the left, covering that unused column. Everything is fine now. Here is how my scripts looks like:



    xrandr --output VGA-0 --off --output LVDS --mode 1366x768 --pos -2x312 --rotate normal --output HDMI-0 --primary --mode 1920x1080 --pos 1366x0 --rotate normal


    Observe the -2 on the first


    --pos
    argument.




    share|improve this answer





















    • Thanks, I tried it. But it seems the mouse still doesn't stop at the inner edges - at least this is the case in XFCE.
      – Emoryy
      Sep 16 '15 at 7:47










    • I see what you mean. In my case I only get that in one of the borders, in which I don't need it to stop. Let's keep waiting for a better solution then.
      – lasaro
      Oct 16 '15 at 15:46














    0












    0








    0






    I had the exactly same problem, but found a different solution that does not have the drawbacks of your proposed solution. It turned out that there was a 2 pixel wide unused column on the left side of my arrangement, so instead of shifting the right display to the right, I shifted the left display (internal) to the left, covering that unused column. Everything is fine now. Here is how my scripts looks like:



    xrandr --output VGA-0 --off --output LVDS --mode 1366x768 --pos -2x312 --rotate normal --output HDMI-0 --primary --mode 1920x1080 --pos 1366x0 --rotate normal


    Observe the -2 on the first


    --pos
    argument.




    share|improve this answer












    I had the exactly same problem, but found a different solution that does not have the drawbacks of your proposed solution. It turned out that there was a 2 pixel wide unused column on the left side of my arrangement, so instead of shifting the right display to the right, I shifted the left display (internal) to the left, covering that unused column. Everything is fine now. Here is how my scripts looks like:



    xrandr --output VGA-0 --off --output LVDS --mode 1366x768 --pos -2x312 --rotate normal --output HDMI-0 --primary --mode 1920x1080 --pos 1366x0 --rotate normal


    Observe the -2 on the first


    --pos
    argument.





    share|improve this answer












    share|improve this answer



    share|improve this answer










    answered Sep 15 '15 at 16:15









    lasaro

    1011




    1011












    • Thanks, I tried it. But it seems the mouse still doesn't stop at the inner edges - at least this is the case in XFCE.
      – Emoryy
      Sep 16 '15 at 7:47










    • I see what you mean. In my case I only get that in one of the borders, in which I don't need it to stop. Let's keep waiting for a better solution then.
      – lasaro
      Oct 16 '15 at 15:46


















    • Thanks, I tried it. But it seems the mouse still doesn't stop at the inner edges - at least this is the case in XFCE.
      – Emoryy
      Sep 16 '15 at 7:47










    • I see what you mean. In my case I only get that in one of the borders, in which I don't need it to stop. Let's keep waiting for a better solution then.
      – lasaro
      Oct 16 '15 at 15:46
















    Thanks, I tried it. But it seems the mouse still doesn't stop at the inner edges - at least this is the case in XFCE.
    – Emoryy
    Sep 16 '15 at 7:47




    Thanks, I tried it. But it seems the mouse still doesn't stop at the inner edges - at least this is the case in XFCE.
    – Emoryy
    Sep 16 '15 at 7:47












    I see what you mean. In my case I only get that in one of the borders, in which I don't need it to stop. Let's keep waiting for a better solution then.
    – lasaro
    Oct 16 '15 at 15:46




    I see what you mean. In my case I only get that in one of the borders, in which I don't need it to stop. Let's keep waiting for a better solution then.
    – lasaro
    Oct 16 '15 at 15:46













    0














    How did you configure the desktop layout? If you used the GUI tool to do so, check to see if you have accidentally positioned the 2 screens overlapping slightly.






    share|improve this answer


























      0














      How did you configure the desktop layout? If you used the GUI tool to do so, check to see if you have accidentally positioned the 2 screens overlapping slightly.






      share|improve this answer
























        0












        0








        0






        How did you configure the desktop layout? If you used the GUI tool to do so, check to see if you have accidentally positioned the 2 screens overlapping slightly.






        share|improve this answer












        How did you configure the desktop layout? If you used the GUI tool to do so, check to see if you have accidentally positioned the 2 screens overlapping slightly.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Mar 25 '17 at 18:24









        Liam Proven

        24926




        24926






























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