Like some other LPL panels, this one reports the vertical size in cm rather
than mm.
Patch taken from Launchpad bug #380009 <https://launchpad.net/bugs/380009>
X.Org Bug 28414 <https://bugs.freedesktop.org/show_bug.cgi?id=28414>
Signed-off-by: Christopher James Halse Rogers <christopher.halse.rogers@canonical.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>