Hi, On Tue, 10 Jul 2018 at 11:59, Simon Ser <cont...@emersion.fr> wrote: > Yes, that's intentional. When the physical size isn't available (e.g. when > using > projectors or virtual outputs) we just send zero. Do you think this is > harmful?
According to the xrandr protocol definition: https://cgit.freedesktop.org/xorg/proto/randrproto/tree/randrproto.txt For the definition of RRGetOutputInfo: | 'widthInMillimeters' and 'heightInMillimeters' report the physical | size of the displayed area. If unknown, or not really fixed (e.g., | for a projector), these values are both zero. So I reckon using 0 for physical size is valid. > I like sending zero because it clearly says "this piece of information is not > relevant in the current situation" instead of faking data. Maybe Xwayland > should > fake it and use a default 96 DPI in this case? > I'm not aware of any X11 client that breaks because of this (yet). If zero for the physical size is a valid value (as stated by the protocol for RRGetOutputInfo), clients should be able to deal with that or else it's a client bug. Cheers, Olivier _______________________________________________ xorg-devel@lists.x.org: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: https://lists.x.org/mailman/listinfo/xorg-devel
