GRUB: Display GRUB on external display connected to laptop?












1















I am on

Ubuntu Gnome
Lenovo Y50-70
GTX 860M



I have been unable to successfully configure, /etc/default/grub.



I want GRUB to display on my HDMI monitor but it only displays on my laptop inbuilt eDP display.










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  • I'm pretty sure this is something that would need to be configured in the BIOS/UEFI.

    – Nathan Osman
    Aug 29 '16 at 2:35











  • @NathanOsman: Why? I have a similar situation (laptop with external monitor): After boot linux switches to the external monitor. Why shouldn't grub (be able to) do the same. Unless this function is simply not implemented.

    – Giorgio
    Oct 13 '16 at 19:16











  • Because Grub doesn't interact with the graphics card the same way a Linux desktop does.

    – Nathan Osman
    Oct 13 '16 at 19:28
















1















I am on

Ubuntu Gnome
Lenovo Y50-70
GTX 860M



I have been unable to successfully configure, /etc/default/grub.



I want GRUB to display on my HDMI monitor but it only displays on my laptop inbuilt eDP display.










share|improve this question














bumped to the homepage by Community 55 mins ago


This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
















  • I'm pretty sure this is something that would need to be configured in the BIOS/UEFI.

    – Nathan Osman
    Aug 29 '16 at 2:35











  • @NathanOsman: Why? I have a similar situation (laptop with external monitor): After boot linux switches to the external monitor. Why shouldn't grub (be able to) do the same. Unless this function is simply not implemented.

    – Giorgio
    Oct 13 '16 at 19:16











  • Because Grub doesn't interact with the graphics card the same way a Linux desktop does.

    – Nathan Osman
    Oct 13 '16 at 19:28














1












1








1








I am on

Ubuntu Gnome
Lenovo Y50-70
GTX 860M



I have been unable to successfully configure, /etc/default/grub.



I want GRUB to display on my HDMI monitor but it only displays on my laptop inbuilt eDP display.










share|improve this question














I am on

Ubuntu Gnome
Lenovo Y50-70
GTX 860M



I have been unable to successfully configure, /etc/default/grub.



I want GRUB to display on my HDMI monitor but it only displays on my laptop inbuilt eDP display.







ubuntu grub gnome-shell






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Aug 29 '16 at 2:23









MeticulousMeticulous

61




61





bumped to the homepage by Community 55 mins ago


This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.







bumped to the homepage by Community 55 mins ago


This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.















  • I'm pretty sure this is something that would need to be configured in the BIOS/UEFI.

    – Nathan Osman
    Aug 29 '16 at 2:35











  • @NathanOsman: Why? I have a similar situation (laptop with external monitor): After boot linux switches to the external monitor. Why shouldn't grub (be able to) do the same. Unless this function is simply not implemented.

    – Giorgio
    Oct 13 '16 at 19:16











  • Because Grub doesn't interact with the graphics card the same way a Linux desktop does.

    – Nathan Osman
    Oct 13 '16 at 19:28



















  • I'm pretty sure this is something that would need to be configured in the BIOS/UEFI.

    – Nathan Osman
    Aug 29 '16 at 2:35











  • @NathanOsman: Why? I have a similar situation (laptop with external monitor): After boot linux switches to the external monitor. Why shouldn't grub (be able to) do the same. Unless this function is simply not implemented.

    – Giorgio
    Oct 13 '16 at 19:16











  • Because Grub doesn't interact with the graphics card the same way a Linux desktop does.

    – Nathan Osman
    Oct 13 '16 at 19:28

















I'm pretty sure this is something that would need to be configured in the BIOS/UEFI.

– Nathan Osman
Aug 29 '16 at 2:35





I'm pretty sure this is something that would need to be configured in the BIOS/UEFI.

– Nathan Osman
Aug 29 '16 at 2:35













@NathanOsman: Why? I have a similar situation (laptop with external monitor): After boot linux switches to the external monitor. Why shouldn't grub (be able to) do the same. Unless this function is simply not implemented.

– Giorgio
Oct 13 '16 at 19:16





@NathanOsman: Why? I have a similar situation (laptop with external monitor): After boot linux switches to the external monitor. Why shouldn't grub (be able to) do the same. Unless this function is simply not implemented.

– Giorgio
Oct 13 '16 at 19:16













Because Grub doesn't interact with the graphics card the same way a Linux desktop does.

– Nathan Osman
Oct 13 '16 at 19:28





Because Grub doesn't interact with the graphics card the same way a Linux desktop does.

– Nathan Osman
Oct 13 '16 at 19:28










1 Answer
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First of all I want to clear something
This issue has nothing to do with your graphics card
It is all about the resolution of your displays (Either the laptop or the external display)
For Example - If your laptop screen is set 1360x768
but your external display is 1600x900
In order to show the grub menu or the BIOS of your laptop on the external display
simply set the external display's resolution to match the laptop's display resolution. don't forget to disable the laptop display before a reboot
This worked for me






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    0














    First of all I want to clear something
    This issue has nothing to do with your graphics card
    It is all about the resolution of your displays (Either the laptop or the external display)
    For Example - If your laptop screen is set 1360x768
    but your external display is 1600x900
    In order to show the grub menu or the BIOS of your laptop on the external display
    simply set the external display's resolution to match the laptop's display resolution. don't forget to disable the laptop display before a reboot
    This worked for me






    share|improve this answer




























      0














      First of all I want to clear something
      This issue has nothing to do with your graphics card
      It is all about the resolution of your displays (Either the laptop or the external display)
      For Example - If your laptop screen is set 1360x768
      but your external display is 1600x900
      In order to show the grub menu or the BIOS of your laptop on the external display
      simply set the external display's resolution to match the laptop's display resolution. don't forget to disable the laptop display before a reboot
      This worked for me






      share|improve this answer


























        0












        0








        0







        First of all I want to clear something
        This issue has nothing to do with your graphics card
        It is all about the resolution of your displays (Either the laptop or the external display)
        For Example - If your laptop screen is set 1360x768
        but your external display is 1600x900
        In order to show the grub menu or the BIOS of your laptop on the external display
        simply set the external display's resolution to match the laptop's display resolution. don't forget to disable the laptop display before a reboot
        This worked for me






        share|improve this answer













        First of all I want to clear something
        This issue has nothing to do with your graphics card
        It is all about the resolution of your displays (Either the laptop or the external display)
        For Example - If your laptop screen is set 1360x768
        but your external display is 1600x900
        In order to show the grub menu or the BIOS of your laptop on the external display
        simply set the external display's resolution to match the laptop's display resolution. don't forget to disable the laptop display before a reboot
        This worked for me







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Jan 14 '17 at 8:28









        besrate hogsabesrate hogsa

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