On Mon, Aug 03, 2009 at 09:56:40AM +0100, Anselm R Garbe wrote: > Hi Eivind, > > thanks for your investigation. I looked through the code and > remembered that unfocus() sets the input focus to the root window in > order that clients are notified with FocusOut (in terminals this has > the effect that the cursor turns into unfocused state). > > So in general there is nothing wrong with setting the input focus to > the root window during unfocus() -- that's also usual practice in > other WM implementations. I suspect there is a side-effect with > unclutter though, haven't looked at its code, but it surely must do > some nasty trick to void the cursor, which might have some side-effect > if it receives FocusIn on the root window, which is why I propose to > look at unclutter next, since I bet the real fix is on that side... ;) > > But let's see. > > Kind regards, > Anselm > > > 2009/8/3 Eivind Uggedal <eiv...@uggedal.com>: > > After updating from 5.5 to 5.6 I encountered a bug relating to unclutter[1]. > > Steps to reproduse: > > > > 1. Start dwm 5.6 with default config and unclutter with default params. > > 2. Open more than one window in the active tag. > > 3. Wait until unclutter hides the cursor. > > 4. Switch to a window not focused by the previously visible cursor using the > > keyboard. > > 5. The window border will start flickering (looking like it gets unfocused > > and focused rapidly in succession). > > 6. The cursor will also start to flicker. > > 7. Using the keboard to focus the window the cursor was focusing when > > visible will stop the flickering. Moving the cursor (so that unclutter > > displays it again) will also stop the flicker until unclutter hides it > > again. > > > > This bug was introduced in changeset 1418 37e3b2a40f6f [2]. The problem is > > that XSetInputFocus is called through the unfocus() function from focus(). > > As I'm not familiar with Xlib I'm not sure how to fix this bug, but I've > > been able to pinpoint the erroneous code and disable the XSetInputFocus call > > when unfocus() is called from focus(). > > > > I've attached a patch against changeset 1477 aefd753cfe9b which does exactly > > this. Note that this was made just to highlight which code path triggers the > > described behavior and is not meant as a patch for fixing the bug. > > > > [1]: http://www.ibiblio.org/pub/X11/contrib/utilities/unclutter-8.README > > [2]: http://code.suckless.org/hg/dwm/rev/37e3b2a40f6f > > > > -- > > Cheers, > > Eivind Uggedal > > >
Have you looked at the man page for unclutter? There is an option (-noevents or some such thing) that makes unclutter not send any X11 signals. This should fix your bug.
