[GTALUG] Kernel and/or X upgrade broke my video setup
Evan Leibovitch
evan at telly.org
Wed Oct 11 12:02:16 EDT 2017
This is the output of my xrandr:
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
HDMI-0 disconnected (normal left inverted right x axis y axis)
DVI-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y
axis) 531mm x 299mm
1920x1080 59.93 + 60.00*
1680x1050 59.88
1280x1024 75.02 60.02
1280x960 60.00
1152x864 75.00
1024x768 75.03 60.00
832x624 74.55
800x600 75.00 60.32 56.25
640x480 75.00 59.94
720x400 70.08
VGA-0 connected 1920x1080+0+0 (normal left inverted right x axis y axis)
477mm x 268mm
1920x1080 60.00*+
1680x1050 59.95
1600x900 60.00
1280x1024 75.02 60.02
1280x960 60.00
1152x864 75.00
1280x720 60.00
1152x720 59.97
1024x768 75.03 60.00
832x624 74.55
800x600 75.00 60.32
640x480 75.00 59.94
Before the updates, both screens were able to report maximum resolution and
even the make/model.
Now that's only reported for the main (HDMI-connected) screen.
I attach a screenshot of the config window that I once used to make it work
under KDE.
On 11 October 2017 at 11:18, Scott Sullivan via talk <talk at gtalug.org>
wrote:
>
>
> On October 11, 2017 10:19:28 AM EDT, ac via talk <talk at gtalug.org> wrote:
> >On Wed, 11 Oct 2017 10:01:07 -0400
> >Scott Sullivan via talk <talk at gtalug.org> wrote:.
> >> Desktop implement UIs that talk to this functionality, and handle the
> >
> >> 'memory' of layouts. KDE's for example will remember transient
> >> moinitor configureations, like my two different laptop docks at home
> >> and work, and will restore the right layout for each, matching
> >> against the Vendor IDs of the monitors.
> >>
> >Okay, but after a kernel update / distro update - no configs 'should
> >have' been over written...
> >
> >as it seems there has been config changes (both screens are still
> >working & mouse moves to both screens, etc etc)
> >
> Not necessarily. Software is free to mangle your configs at run time.
> Distro will knowingly or unknowingly push updates from the upstream that
> 'upgrade' preferences files in ways that don't roll back. Especially in
> desktop applications.
>
> Firefox will be doing this with the 57 release as we learned last night.
>
> But another factor is driver updates can also result in the Output names
> changing. I've seen this in my own laptop. Usually as the generic drives
> gets tweaked to be aware of the specific model.
>
> In that case the old config doesn't match the remembered state and would
> reasonable fall back to defaults. And defaults are the convention of the
> person that wrote the software.
> --
> Scott Sullivan
> ---
> Talk Mailing List
> talk at gtalug.org
> https://gtalug.org/mailman/listinfo/talk
>
--
Evan Leibovitch
Toronto, Canada
Em: evan at telly dot org
Sk: evanleibovitch
Tw: el56
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