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Author Topic: [EN] Adjust screen resolution after crash???  (Read 3302 times)

Offline michaaa62

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  • Posts: 299
[EN] Adjust screen resolution after crash???
« on: 2014/06/16, 11:05:59 »
My Sweetheart-Darling-Honey  :o ... daughter just crashed the screen of her 17'' Laptop. The upper fifth is not usale any more.
Is there any way to, kind of, push the screen to the lower part of the display and reduce the resolution to 1600x768?
Any hints are welcome!

Offline ReinerS

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Re: Adjust screen resolution after crash???
« Reply #1 on: 2014/06/16, 12:08:15 »
Maybe you can limit the useable size with xrandr.

regards

Reiner

slackware => SuSE => kanotix => sidux => aptosid  => siduction

Offline ayla

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Re: Adjust screen resolution after crash???
« Reply #2 on: 2014/06/16, 12:53:44 »
I don't know how exactly it it is to do, but you have to reduce the screen resolution and then set the starting point (upper left corner) to a matching value.

eg 0x300 insteed of 0x0 if you want to reduce the vertical resolution from eg 1000 to 700. 


should be something like
Code: [Select]
xrandr --pos <x>x<y>
you may want to look for "virtual screen"
« Last Edit: 2014/06/16, 13:03:12 by ayla »

Offline ayla

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Re: Adjust screen resolution after crash???
« Reply #3 on: 2014/06/16, 23:44:23 »
Played around a little...

Dont know whats the name of your output is, my monitor is HDMI2, yours is for sure different.
so if you didn't get any further til now you may like to play with this line:

Code: [Select]
xrandr --output HDMI2 --mode 1024x768 --scale 1.5x1.5 --pos 0x-100
where scale is not neccessary to use and -on my system- I need a negative value at pos to set the top of the screen 100 pixel to the bottom.I dont really understand this, but works here.

Offline michaaa62

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  • Posts: 299
Re: Adjust screen resolution after crash???
« Reply #4 on: 2014/06/30, 09:54:09 »
Sorry for not answering/thanking. Those priorities...  ::)
Great suggestions,thanks. Will try to get things fixed later.

Offline ayla

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Re: Adjust screen resolution after crash???
« Reply #5 on: 2014/06/30, 10:39:05 »
another hint:

Your screen may be unsharp after setting the resolution to a value which does not match the real pixelsize of your display anymore.

xrandr has the possibility to set a pixelsize also. But be careful, setting this to high (or was it to low??) will lead to too tiny letters on your terminal.
By playing around I wasn't able to read the -about one mm "big"- letters anymore, which made it a little difficult to get to a useful size again :)

Quote from: man xrandr
--dpi dpi
              This also sets the reported physical size values of the screen, it uses the specified DPI value to compute an appropriate physical size using whatever pixel size will be set.

You may want to have a look at the --fb option also.

Have fun
ayla