On Di, 2014-04-08 at 14:46 +0200, Takashi Iwai wrote: > The current code shows annoying behavior where the X pointer can move > out of the window during the input grab in the absolute mode. Due to > this, the pointer in qemu window looks as if frozen until the real > (invisible) X pointer comes back to the window again. > > For avoiding such an unexpected lag, this patch limits the pointer > movement only within the qemu window during the input grab in the > absolute mode. When the pointer goes out, it's moved back to the > boundary again.
At least at X11 level it is possible to simply confine the pointer to a certain window (see "man XGrabPointer"). Then you don't have to warp the pointer. Warping the pointer in absolute mode has ugly effects (see 2bda66028b4962c36d4eabe2995edab12df93691). Other possible solution: Never ever grab the pointer in absolute mode. cheers, Gerd
