Hi I encountered a problem when I compiled the latest master (Using Ubuntu 16.04 and the corresponding GTK version) I attach a screenshot The config options are auto-apt run ./configure --prefix=/opt/emacs29 --without-pop --with-mailutils I bisected the problem and found out that the culprit is commit 74c07733698b95eb455edcafab8634a700a3194f Author: Po Lu Date: Thu, 17 Feb 2022 10:28:02 +0800 * src/emacsgtkfixed.c (XSetWMSizeHints): Improve fix for bug#8919. Regards Uwe Brauer