Roberto, I figure out how to trigger and disable the problem and I think it's a BUG.
The problem occurs when I press SHIFT + SPACE (together). I went though the list of shortcuts in the Gnome Control Center under Devices ->Keyboard. No shortcut is set for SHIFT + SPACE As I told you before, Input Source Options is set to: "Use the same source for all windows" But the shortcuts to change input, in case it was set otherwise are: SUPER + SPACE and SHIFT + SUPER + SPACE. Before yesterday when I typed SHIFT + SPACE I'd got a space character, now I have this weird behavior that I don't even know what it means. Thank you again for your help. Regards. On Thu, Dec 7, 2017 at 8:51 PM, Paulo Roberto <betobran...@gmail.com> wrote: > I had already checked it as well. > Use the same source for all Windows is checked. > > In the same window or tab it changes the behavior during user (typing). > > Do you know any log that could help? > > > On Thu, Dec 7, 2017 at 6:41 PM, Roberto C. Sánchez <robe...@debian.org> > wrote: > >> On Thu, Dec 07, 2017 at 05:51:01PM +0000, Paulo Roberto wrote: >> > Roberto, >> > >> > The first thing I checked was the layout. >> > Nothing changed. >> > And I don't think is related to shortcut keys, because clicking in a >> > different tab, and the problem >> > goes away for that tab. >> >> Paulo, >> >> In "Region and Language", under "Input Source Options" do you have "Use >> the same source for all windows" or "Allow different sources for each >> window"? >> >> Regards, >> >> -Roberto >> >> -- >> Roberto C. Sánchez >> >> >