[Pkg-chromium-maint] Bug#789213: Bug#789213: chromium: HiDPI mistakes with xfce4 again

Vincent Bernat bernat at debian.org
Fri Jun 19 12:54:38 UTC 2015

 ❦ 18 juin 2015 22:47 +0100, Paul Martin <pm at debian.org> :

> Chromium draws itself at about 4x its normal size when used with xfce4.
> xdpyinfo reports:
> screen #0:
>   dimensions:    1920x1200 pixels (508x317 millimeters)
>   resolution:    96x96 dots per inch
> ....which isn't a particularly dense dot pitch. It certainly shouldn't 
> trigger the HiDPI handler, which is meant for 200+ dpi.
> Reverting to 43.0.2357.81-1 fixes the problem.

You can also run Chromium with --force-device-scale-factor=1.

Upstream did revert half of a patch. You can try to compile the program

If it reports anything else than 98304, the bug likely steems from the
fact that the computed scale factor can only be an integer due to a
"stable" change. If it is 98304, well, I don't know.

Either way, if you don't have HiDPI at all,
--force-device-scale-factor=1 is safe to use.
Format a program to help the reader understand it.
            - The Elements of Programming Style (Kernighan & Plauger)
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