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On 04/09/17 23:26, Grant wrote: |
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>>> Is there a way to digitally discover the true height and width of your |
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>>> screen in mm? |
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>> |
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>> Yes. xdpyinfo shows the information: |
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>> |
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>> xdpyinfo | grep -B2 resolution |
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>> |
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>> If the information is wrong, that usually means one of two things (sometimes |
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>> even both): a) the video driver is reporting the wrong size to Xorg, and/or |
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>> b) the screen is reporting the wrong size to the driver. |
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> |
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> I'm getting strange results from xdpyinfo. I always get 96x96 DPI and |
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> the screen size changes along with the resolution. When I run 'xrandr |
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> --dpi 200x200' and check xdpyinfo, it reports correctly. But if I log |
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> out and back in to xfce4 without doing anything else, it gives me |
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> 96x96 again. |
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XFCE is probably forcing 96DPI by default. This is usually done by |
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desktop environments that don't support DPI scaling very well. I just |
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found this (sort of flame-war-ish) thread: |
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https://forum.xfce.org/viewtopic.php?id=7734 |
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and indeed XFCE doesn't seem to have very good support for this. Maybe |
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you can find some of the settings listed there useful though. |
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Other than that, if you want working DPI scaling, you'll have much |
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better luck with KDE 5 / Plasma. |
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