'Zoom out' on 3.5 inch LED screen

Question

I bought a 3.5" LED screen that is on my Pi, however it is nearly impossible to use because edges of windows are clipped off etc.

How can I 'zoom out' so that all the windows are really tiny? Basically so I can fit the entire display on the screen.

Thanks

score 3 · Accepted Answer · answered Jun 28 '16 at 09:13

3

Use XRandR panning.

First , determine the display names.

xrandr -q

Then setup the panning itself :

xrandr --output DISPLAYNAME --mode 640x480 --panning 1920x1080

Use this to restore the normal mode :

xrandr -s 1920x1080

answered Jun 28 '16 at 09:13

flakeshake

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score 1 · Answer 2 · edited Apr 13 '17 at 12:56

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overscan would most likely fix this issue. See this post, and the official docs. Basically, overscan fine tunes the image size. You can change the overscan with sudo raspi-config or you can change the overscan more precisely by editing /boot/config.txt but you shouldn't need to. But if you need to edit /boot/config.txt, check the official docs for config.txt. You would want to add/edit the parameters overscan_left=, overscan_right=, overscan_top=, overscan_bottom= and set them equal to something bigger, just mess with the number and see what works best.

edited Apr 13 '17 at 12:56

Community

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answered Feb 28 '16 at 23:37

Patrick Cook

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I don't think overscanning is the issue. I think the screen is simply too small to show the windows in their entirety. – Jacobm001 Feb 29 '16 at 00:05
@Jacobm001 oh, my understanding was that the display was not fitting properly, I see what you're saying now after rereading the question. – Patrick Cook Feb 29 '16 at 00:08
So how can I shrink the windows? – Maffs Mar 01 '16 at 09:13

score 0 · Answer 3 · answered Sep 12 '23 at 07:58

0

You’re dealing with a completely different piece of hardware. The main problem with using a pi pico . Is the memory buffer size. Since you can’t even fit the full screen into the tiny memory of the pico, you have to resort to working on the screen in sections the only way to create any decent code to fit is to split the screen into four horizontal bands each containing 1/4 of the buffer size, so as you can guess you can forget, animations in fullscreen or videos .

answered Sep 12 '23 at 07:58

JPL-156

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Where do you find that the OP uses a Raspberry Pi Pico? – MatsK Sep 12 '23 at 10:14
This doesn't address the question. Pico isn't mentioned anywhere. – Chenmunka Sep 12 '23 at 20:13

PaulF8080 · Answer 4 · 2016-04-29T06:53:25.270

-3

startx -- -dpi xx Try different xx settings for your display

edited Apr 29 '16 at 06:53

answered Apr 29 '16 at 06:42

PaulF8080

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Why is there a blank -- in your command? What does -dpi xx do? Someone who isn't familiar with this command may not understand what values of xx to try, or how they relate to the output. – Jacobm001 Apr 29 '16 at 15:05
The OP was having trouble with the GUI and therefore he uses this command. The double dash is used to say the following commands are driver commands. – PaulF8080 Apr 29 '16 at 16:38
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My point is that such information would be good to include in the answer. – Jacobm001 Apr 29 '16 at 16:39
I intentionally don't explain the full details. I have found that you learn more and remember more if you look things up yourself. – PaulF8080 Apr 29 '16 at 16:47

'Zoom out' on 3.5 inch LED screen

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