> Everything is linked to the fact I was using a dual-head configuration.
> d...@ddp:~$ xdpyinfo | grep -A1 dimen
> dimensions: 1280x1024 pixels (0x0 millimeters)
> resolution: -2147483648x-2147483648 dots per inch
> --> this dirty value is the culprit ;-)
> The workaround is to set the DisplaySize value in the Monitor section
> of /etc/X11/xorg.conf.
> It now runs fine.
... X is reporting bogus dpi values; so not a grass bug and this ticket
should be moved to Xorg or closed. nothing much we can do about it.
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