Not Able To Use External Monitor with Laptop

[Richard Kimberly Heck]

Hi, all,

I'm having an odd problem. On two of my laptops, on which I've just done 
fresh installs, I cannot get the external monitor to work. Using either 
the XFCE display configuration tool, it shows up, but it's marked as 
'disabled'. I do not seem to have the usual such tool under KDE, which 
is one of my puzzles.

The install was done the same way in both cases, and somewhat 
non-standardly, so I'm guessing I might be missing some package(s). I've 
had trouble using KDE with Wayland, so I installed the XFCE spin, then 
installed KDE via dnf, so Wayland does not get loaded, and is not even 
installed.

Graphics processor on this machine is AMD Renoir. It's a System 76 Pangolin.

Riki

[Kenneth Marcy]

On 4/27/22 15:49, Richard Kimberly Heck wrote:
>  Hi, all,
>
>  I'm having an odd problem. On two of my laptops, on which I've just 
>  done fresh installs, I cannot get the external monitor to work. Using 
>  either the XFCE display configuration tool, it shows up, but it's 
>  marked as 'disabled'. I do not seem to have the usual such tool under 
>  KDE, which is one of my puzzles.
>
>  The install was done the same way in both cases, and somewhat 
>  non-standardly, so I'm guessing I might be missing some package(s). 
>  I've had trouble using KDE with Wayland, so I installed the XFCE spin, 
>  then installed KDE via dnf, so Wayland does not get loaded, and is not 
>  even installed.
>
>  Graphics processor on this machine is AMD Renoir. It's a System 76 
>  Pangolin. 

What happens if you do the following series of steps?

1) disconnect the external monitor from the laptop, allow the monitor to 
continue running

2) restart the laptop and login, then allow it to boot up to a stable screen

3) plug the monitor cable back into the laptop

Does the monitor obtain the same image as is on the laptop, and allow 
you to use them together?



Ken

[Barry Scott]

On 28/04/2022 20:17, Kenneth Marcy wrote:
>  On 4/27/22 15:49, Richard Kimberly Heck wrote:
> > Hi, all,
> >
> > I'm having an odd problem. On two of my laptops, on which I've just 
> > done fresh installs, I cannot get the external monitor to work. Using 
> > either the XFCE display configuration tool, it shows up, but it's 
> > marked as 'disabled'. I do not seem to have the usual such tool under 
> > KDE, which is one of my puzzles.
> >
> > The install was done the same way in both cases, and somewhat 
> > non-standardly, so I'm guessing I might be missing some package(s). 
> > I've had trouble using KDE with Wayland, so I installed the XFCE 
> > spin, then installed KDE via dnf, so Wayland does not get loaded, and 
> > is not even installed.
> >
> > Graphics processor on this machine is AMD Renoir. It's a System 76 
> > Pangolin.
>
>
>  What happens if you do the following series of steps?
>
>  1) disconnect the external monitor from the laptop, allow the monitor 
>  to continue running
>
>  2) restart the laptop and login, then allow it to boot up to a stable 
>  screen
>
>  3) plug the monitor cable back into the laptop
>
>  Does the monitor obtain the same image as is on the laptop, and allow 
>  you to use them together? 
If you have no image look at the output of dmesg, there may be 
interesting kernel messages that
help investigate what is wrong.

Barry

>
>
>
> Ken
>
> _______________________________________________
> users mailing list -- users(a)lists.fedoraproject.org
> To unsubscribe send an email to users-leave(a)lists.fedoraproject.org
> Fedora Code of Conduct: 
> https://docs.fedoraproject.org/en-US/project/code-of-conduct/
> List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
> List Archives: 
> https://lists.fedoraproject.org/archives/list/[e-mail]
> Do not reply to spam on the list, report it: 
> https://pagure.io/fedora-infrastructure