(In reply to Michal Suchanek from comment #26)
> This seems to work for me.
Are you sure nothing is setting DPI explicitly or implicitly, such as your DE?
> X.Org version: 1.17.2
> resolution: 100x100 dots per inch
> Actual resolution seems to be more like 109 dpi but it's certainly not fixed
> at 96.
Using which video driver? All FOSS driver versions I've used since long before this bug was opened force 96 unless unless explicitly overridden via xrandr, Xft.dpi, server startup option -dpi, DE settings (which typically use Xft.dpi or xrandr), or xorg.conf*'s DisplaySize option. All these options force a specific DPI. None enable the server or driver to do what computers do best, calculate and apply an accurate value automatically, which is what this bug is effectively requesting.
(In reply to Michal Suchanek from comment #26)
> This seems to work for me.
Are you sure nothing is setting DPI explicitly or implicitly, such as your DE?
> X.Org version: 1.17.2
> resolution: 100x100 dots per inch
> Actual resolution seems to be more like 109 dpi but it's certainly not fixed
> at 96.
Using which video driver? All FOSS driver versions I've used since long before this bug was opened force 96 unless unless explicitly overridden via xrandr, Xft.dpi, server startup option -dpi, DE settings (which typically use Xft.dpi or xrandr), or xorg.conf*'s DisplaySize option. All these options force a specific DPI. None enable the server or driver to do what computers do best, calculate and apply an accurate value automatically, which is what this bug is effectively requesting.