Re: Use motherboard video-out or GPU’s

From	Linux-Fan <Ma_Sys.ma@web.de>
Newsgroups	linux.debian.user
Subject	Re: Use motherboard video-out or GPU’s
Date	2021-03-09 13:50 +0100
Message-ID	<BQJYd-8o1-3@gated-at.bofh.it> (permalink)
References	<BQFrA-5rL-9@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Pankaj Jangid writes:

> I have a confusion. Actually there are two. Please help me understand
> this.
>
> Suppose I have a good motherboard with two GPUs installed in the PCIe
> slots. Now, should I connect the monitor to the motherboard video-out or
> should I use GPU’s output? Suppose the OS (Debian GNU/Linux in this
> case) is fully configured to utilize the GPUs i.e. drivers etc. are set
> up. Will the graphic system be able to utilize the GPUs irrespective of
> where I have connected the monitor?

Connect the monitors to the GPU/cards you want to use. Otherwise, it is most  
likely that graphics output will be computed by a processor-integrated  
graphics unit (if present, otherwise black screen).

Here are the two special cases that immediately come to mind:

 * It is possible to utilize GPUs that are not connected to screens for  
   computation purposes (e.g. OpenCL/NVidia CUDA). Unless you are doing this  
   all the time there is no reason against using them for video output, too :)

 * In case of mobile devices there are some which can render on a different GPU  
   than the monitor is connected to but for usual desktops this is not the case.

HTH
Linux-Fan

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[...]

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Thread

Use motherboard video-out or GPU’s Pankaj Jangid <pankaj@codeisgreat.org> - 2021-03-09 09:00 +0100
  Re: Use motherboard video-out or GPU’s deloptes <deloptes@gmail.com> - 2021-03-09 09:50 +0100
    Re: Use motherboard video-out or GPU’s IL Ka <kazakevichilya@gmail.com> - 2021-03-09 12:10 +0100
    Re: Use motherboard video-out or GPU’s Pankaj Jangid <pankaj@codeisgreat.org> - 2021-03-09 13:50 +0100
      Re: Use motherboard video-out or GPU???s Dan Ritter <dsr@randomstring.org> - 2021-03-09 15:50 +0100
        Re: Use motherboard video-out or GPU???s Stefan Monnier <monnier@iro.umontreal.ca> - 2021-03-09 17:00 +0100
          Re: Use motherboard video-out or GPU???s Dan Ritter <dsr@randomstring.org> - 2021-03-09 18:30 +0100
            Re: Use motherboard video-out or GPU???s Pankaj Jangid <pankaj@codeisgreat.org> - 2021-03-10 05:40 +0100
              Re: Use motherboard video-out or GPU???s deloptes <deloptes@gmail.com> - 2021-03-10 08:10 +0100
                Re: Use motherboard video-out or GPU???s Pankaj Jangid <pankaj@codeisgreat.org> - 2021-03-10 08:50 +0100
          Re: Use motherboard video-out or GPU???s Pankaj Jangid <pankaj@codeisgreat.org> - 2021-03-10 05:40 +0100
      Re: Use motherboard video-out or GPU’s deloptes <deloptes@gmail.com> - 2021-03-09 19:50 +0100
        Re: Use motherboard video-out or GPU’s Felix Miata <mrmazda@earthlink.net> - 2021-03-09 22:20 +0100
          Re: Use motherboard video-out or GPU’s deloptes <deloptes@gmail.com> - 2021-03-10 01:00 +0100
            Re: Use motherboard video-out or GPU’s IL Ka <kazakevichilya@gmail.com> - 2021-03-10 02:00 +0100
              Re: Use motherboard video-out or GPU’s Pankaj Jangid <pankaj@codeisgreat.org> - 2021-03-10 05:50 +0100
  Re: Use motherboard video-out or GPU’s IL Ka <kazakevichilya@gmail.com> - 2021-03-09 12:20 +0100
  Re: Use motherboard video-out or GPU’s Linux-Fan <Ma_Sys.ma@web.de> - 2021-03-09 13:50 +0100

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