Conditional resolution change

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I have two (apparently) identical 7in monitors. xrandr shows exactly the same
range of resolution, yet one always opens at the second to highest mode, and
the other at the lowest one.

As far as I can tell there are no internal switches or links in the monitors,
and I can instruct the one that opens low rest to change to the higher one,
where it behaves without issues.

What I would like to be able to do is somewhere early on check to see if the
monitor reports the low res value as default, and if so switch to the higher

An added complication is that the entire setup will be used by non-techy
people, who may want to run with a full size monitor instead, so I don't want
to force the resolution, if that monitor has an even higher resolution as its

so basically

    if (res < nnn)
        res = xxx;

Any suggestions on the best way to do this?


Re: Conditional resolution change
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There are a lot of possibilities now with conditions in config.txt. Use the
edid value:

Re: Conditional resolution change
On 27 Jan 2021 18:31:58 GMT

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Quoted text here. Click to load it

Thanks for this.
Exactly the sort of thing I need :)


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