Version: (using Devel) Installed from: Compiled sources As you added a black screen for presentation mode it would be awesome if this would work with the Logitech presenter. I just tried and it does not work. I don't know what event is triggered when you press the button, but obviously no "b". If you need any help to implement this feature request, please ask. I would like to provide the needed information and if I find out what event is triggered by the button, I will post it to this feature request.
Hey Martin, :) the presentation black screen is triggered by the "b" key by default (as usual configurable in the application shortcuts). As I don't have such a device, are you really sure it sends a "b" keycode, and not some other keycombo? (`xev` can be of help here.)
Thanks for the hint with xev. That's the output: KeyRelease event, serial 36, synthetic NO, window 0x5600001, root 0x13e, subw 0x0, time 23060119, (-441,523), root:(656,548), state 0x0, keycode 60 (keysym 0x2e, period), same_screen YES, XLookupString gives 1 bytes: (2e) "." XFilterEvent returns: False I just tried it and yes it is just a ".". I put it as an alternative keybinding and now I can make the screen go black with the device. (That's just awesome. I will have to do a presentation at university and all other students using PDF failed to make the screen go black. Good advertisment for Okular and KDE :-D )
Oh nice! The only doubt I have is whether these keycombos change between each presenter device. I knew some used the "b" key, while yours seem to use ".". Not sure whether there could be more, so yours is worth being added as alternate shortcut. What I will do anyway is to add some tip more in our FAQs; I guess you configured the extra shortcut by using directly the device in the shortcut configuration?
(In reply to comment #3) > Oh nice! > > The only doubt I have is whether these keycombos change between each presenter > device. I knew some used the "b" key, while yours seem to use ".". > Not sure whether there could be more, so yours is worth being added as > alternate shortcut. That would be great. > > What I will do anyway is to add some tip more in our FAQs; I guess you > configured the extra shortcut by using directly the device in the shortcut > configuration? No I wanted to try if it is the ".". So I used the . key. But using the device in the shortcut configuration would work as well, but of course working out of the box as expecte is always the best ;-)
It's 2012 and Logitech is still using '.' for black screen and <esc> for start/stop. As I understand things, '.' and <esc> are what PowerPoint and LibreOffice Presenter use. Thus it's save to assume that this mapping will not change. While <esc> is obviously controversial, adding '.' as alternate screen blanking button would be appreciated.