Xrandr and external monitor (H)

Muhammad Ahsan ahsan at vivaldi.net
Mon Jan 6 00:32:48 UTC 2025


On Sun, 05 Jan 2025 12:00:02 +0000
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>    1. Re: Xrandr and external monitor (H) (Muhammad Ahsan)
>    2. Re: Xrandr and external monitor (H) (H)
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Sat, 4 Jan 2025 16:24:38 +0100
> From: Muhammad Ahsan <ahsan at vivaldi.net>
> To: xorg at lists.x.org
> Subject: Re: Xrandr and external monitor (H)
> Message-ID: <20250104162438.5464d42e at debbox.example.com>
> Content-Type: text/plain; charset=US-ASCII
> 
> As per log, you seem to be missing the `modesetting` driver. On Debian
> based distros, this is provided via `xserver-xorg-core` package. Can
> you ensure that this package is installed?
> 
> 
> 
> On Sat, 04 Jan 2025 12:00:02 +0000
> xorg-request at lists.x.org wrote:
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> >    1. Re: Xrandr and external monitor (H)
> > 
> > 
> > ----------------------------------------------------------------------
> > 
> > Message: 1
> > Date: Fri, 03 Jan 2025 15:52:03 -0500
> > From: H <agents at meddatainc.com>
> > To: xorg at lists.x.org
> > Subject: Re: Xrandr and external monitor
> > Message-ID: <81A2CBA6-177C-4D5A-B816-338EA1F8D064 at meddatainc.com>
> > Content-Type: text/plain; charset=utf-8
> > 
> > On January 3, 2025 5:20:38 AM EST, Fungal-net
> > <fungalnet at protonmail.com> wrote:  
> > >On Friday, January 3rd, 2025 at 12:49 AM, H <agents at meddatainc.com>
> > >wrote:    
> > >> Forgot to attach the file but doing it now.    
> > >
> > >I have a shortcut function in my zsh which looks for (EE) in
> > >Xorg.log The first thing I would do after seeing this log is to
> > >install the xorg xf86 packages for fbdev and vesa then attempt to
> > >run again and rescan for errors.  Subsequent errors and warnings
> > >would be meaningless after the first.  In the arch ecosystem those
> > >pkgs are marked as xf86-video-{fbdev,vesa} on debian/rh may have
> > >slightly different names.    
> > 
> > What would the function be of fbdev and vesa? 
> > 
> > Quick googling suggests the former is deprecated and replaced by DRM
> > and I am afraid I do not understand the role vesa would play with
> > the nouveau driver in use? Are both vesa and nouveau needed?
> > 
> > 
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> 
> ------------------------------
> 
> Message: 2
> Date: Sat, 04 Jan 2025 17:40:40 -0500
> From: H <agents at meddatainc.com>
> To: xorg at lists.x.org
> Subject: Re: Xrandr and external monitor (H)
> Message-ID: <C2387B13-2C64-478C-A017-DA6DAF9A5E96 at meddatainc.com>
> Content-Type: text/plain; charset=utf-8
> 
> On January 4, 2025 10:24:38 AM EST, Muhammad Ahsan
> <ahsan at vivaldi.net> wrote:
> >As per log, you seem to be missing the `modesetting` driver. On
> >Debian based distros, this is provided via `xserver-xorg-core`
> >package. Can you ensure that this package is installed?
> >
> >
> >
> >On Sat, 04 Jan 2025 12:00:02 +0000
> >xorg-request at lists.x.org wrote:
> >  
> >> Send xorg mailing list submissions to
> >> 	xorg at lists.x.org
> >> 
> >> To subscribe or unsubscribe via the World Wide Web, visit
> >> 	https://lists.x.org/mailman/listinfo/xorg
> >> or, via email, send a message with subject or body 'help' to
> >> 	xorg-request at lists.x.org
> >> 
> >> You can reach the person managing the list at
> >> 	xorg-owner at lists.x.org
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> >> When replying, please edit your Subject line so it is more specific
> >> than "Re: Contents of xorg digest..."
> >> 
> >> 
> >> Today's Topics:
> >> 
> >>    1. Re: Xrandr and external monitor (H)
> >> 
> >> 
> >>  
> >----------------------------------------------------------------------
> > 
> >> 
> >> Message: 1
> >> Date: Fri, 03 Jan 2025 15:52:03 -0500
> >> From: H <agents at meddatainc.com>
> >> To: xorg at lists.x.org
> >> Subject: Re: Xrandr and external monitor
> >> Message-ID: <81A2CBA6-177C-4D5A-B816-338EA1F8D064 at meddatainc.com>
> >> Content-Type: text/plain; charset=utf-8
> >> 
> >> On January 3, 2025 5:20:38 AM EST, Fungal-net
> >> <fungalnet at protonmail.com> wrote:  
> >> >On Friday, January 3rd, 2025 at 12:49 AM, H
> >> ><agents at meddatainc.com> wrote:    
> >> >> Forgot to attach the file but doing it now.    
> >> >
> >> >I have a shortcut function in my zsh which looks for (EE) in
> >> >Xorg.log The first thing I would do after seeing this log is to
> >> >install the xorg xf86 packages for fbdev and vesa then attempt to
> >> >run again and rescan for errors.  Subsequent errors and warnings
> >> >would be meaningless after the first.  In the arch ecosystem those
> >> >pkgs are marked as xf86-video-{fbdev,vesa} on debian/rh may have
> >> >slightly different names.    
> >> 
> >> What would the function be of fbdev and vesa? 
> >> 
> >> Quick googling suggests the former is deprecated and replaced by
> >> DRM and I am afraid I do not understand the role vesa would play
> >> with the nouveau driver in use? Are both vesa and nouveau needed?
> >> 
> >> 
> >> ------------------------------
> >> 
> >> Subject: Digest Footer
> >> 
> >> _______________________________________________
> >> xorg mailing list
> >> xorg at lists.x.org
> >> https://lists.x.org/mailman/listinfo/xorg
> >> 
> >> 
> >> ------------------------------
> >> 
> >> End of xorg Digest, Vol 233, Issue 6
> >> ************************************  
> 
> I just checked to log file and found:
> 
> [    22.361] (==) Matched modesetting as autoconfigured driver 0
> [    22.361] (II) LoadModule: "modesetting"
> [    22.361] (II) Loading
> /usr/lib64/xorg/modules/drivers/modesetting_drv.so [    22.371] (II)
> Module modesetting: vendor="X.Org Foundation" [    22.371] (II)
> modesetting: Driver for Modesetting Kernel Drivers: kms
> 
> Does this not mean the modesetting driver /is/ loaded or am I missing
> something?

Indeed the driver is loaded, however in the very first pastebin log,
this module wasn't loaded (ref. https://pastebin.com/a9an6Y7M).
I have missed the second log file link/attachment (attachment-0001.ksh).
Looking at it confirms modesetting's successful loading.

Can you provide more details about the external screen(s) you are trying
to attach e.g. make, model, resolution etc.? 

Best
---
Ahsan
---
 

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