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Comments on How to reduce DPI of external monitor using xrandr

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How to reduce DPI of external monitor using xrandr

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Have

I have the DPI on my laptop set in .Xresources with Xft.dpi: 192. I am outputting to the external monitor with:

xrandr --output HDMI-2 --auto --rotate left --right-of eDP-1

Want

I want to decrease the DPI of the external monitor. Because the screen is bigger, everything gets blown up.

Tried

I tried using the --dpi option but it affects no change:

xrandr --output HDMI-2 --auto --rotate left --dpi 92 --right-of eDP-1

xrandr external-display dpi

posted about 2 years ago

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mcp‭

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3 comment threads

Maybe your output device is incorrect try using `xdpyinfo` to check what your are using. (1 comment)

I don't understand what you mean by "reduce the DPI". DPI is a physical characteristic of a monitor a... (4 comments)

Perhaps --auto overrides --dpi? > --auto For connected but disabled outputs, this will enabl... (2 comments)

deleted user wrote about 2 years ago

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I don't understand what you mean by "reduce the DPI". DPI is a physical characteristic of a monitor and cannot be changed in software. Are you looking for a way to change the scaling of UI elements (fonts etc) on the second monitor?

According to the xrandr man page, the --dpi option (1) applies to the whole X screen rather than individual monitors, and (2) only affects the font scaling of legacy applications which don't support RandR. So I don't think this is going to be the solution if your goal is to change font scaling.