Do you mean the gtk-qt-engine package? If yes, I
don't know
how to "disable" other than to remove the package. I tested
that and the sequential use of the Alt key still fails. I
don't use themes.
I tested in Firefox, Seamonkey, Opera, and LibreOffice
Writer. The sequential use of the Alt key fails on all. Only
concurrent Alt+F selects the File menu in non-Trinity apps.
As another test, I reverted to my GIT short version 8443
from Oct. 29-30. Same results. I don't know when the style
engine work began. I have some older package sets I could
test although removing and installing full package sets
takes a while.
Looks like the sequential Alt key is broken at least all the way back to 3.5.13. At least,
that usage won't work for me in my 3.5.13 virtual machine.
Slavek, would you please test 3.5.13.1? All you need do is open a non Trinity app, such as
Firefox, and sequentially press Alt then F. The File menu should open.
Darrell