Re: The rabbit hole that is HiDPI... (empty menus / bug#31223 et al)

[Tobias Bading <tbading@web.de>]

On 27.11.19 16:12, Robert Pluim wrote:
 >>>>>> On Wed, 27 Nov 2019 14:41:35 +0100, Tobias Bading
<tbading@web.de> said:
 >
 >     Tobias> The menu bar problems are looking good so far.
 >     Tobias> A "req.height *= xg_get_scale (f)" was missing in
menubar_map_cb() and
 >     Tobias> xg_update_frame_menubar(), right after calling
 >     Tobias> gtk_widget_get_preferred_size() for the menu bar widget.
Plus scale
 >     Tobias> handling in xg_event_is_for_menubar() et voilà.
 >
 > Curious that this wasn't needed before. Has something changed in GTK?

Nope, looks like a rather old bug. But it only affects HiDPI displays with
window scaling active (e.g. set in 'MATE Tweak' or similar in GNOME 2/3).
People using Xrandr to scale the entire display are probably not affected
either.

I just sent a patch to https://debbugs.gnu.org/cgi/bugreport.cgi?bug=31223

 >     >> Thatʼs pretty recent, so your gtk version is greater than
3.22, right?
 >
 >     Tobias> Yes, 3.24.12.
 >
 > And I have the same version, but have no problems with menus. Even
 > curiouser.

Do you use a HiDPI monitor with a window scaling factor of 2?

Tobias