Lost sliding windows w/ DVI Syncmaster monitor

Alex Deucher alexdeucher at gmail.com
Wed Apr 1 19:51:43 UTC 2020

On Wed, Apr 1, 2020 at 3:48 PM Paul Rogers <paulgrogers at fastmail.fm> wrote:
> On Wed, Apr 1, 2020, at 11:25 AM, Alex Deucher wrote:
> > Panning has nothing to do with the monitor.  It comes down the the
> > hardware limitations of the underlying device and what features are
> I'm guessing you mean "device" as used in xorg.conf, i.e. the video card?  Obviously the monitor is a device.

device = video card.

> > exposed via the driver for that device.  The maximum framebuffer size
> > is limited by the stride coordinate limits of the display hardware on
> > the device.  The device also needs to be able to dynamically adjust
> > the offset of the display frame within the display surface.  When you
> > slide pan around with in the larger virtual desktop, the driver is
> > changing the offset of the display controller as you move around.  On
> > top of the hardware requirements, the X driver also has to expose the
> > necessary support for panning.  Not all drivers do.  Especially newer
> > drivers which support randr 1.2 or newer.
> >
> > Alex
> >
> Thank you, I can barely make sense of that.  But I don't see how these internals help me get panning to work again on my system.

I'm just saying it's not the monitor.  It's either a problem with your
xorg configuration or the driver or underlying hardware doesn't
support panning.


> --
> Paul Rogers
> paulgrogers at fastmail.fm
> Rogers' Second Law: "Everything you do communicates."
> (I do not personally endorse any additions after this line. TANSTAAFL :-)

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