[BUG] Touchscreen woes

Ben Gamari bgamari.foss at gmail.com
Fri Nov 29 09:20:54 PST 2013

Ben Gamari <bgamari.foss at gmail.com> writes:

> Peter Hutterer <peter.hutterer at who-t.net> writes:
>> you need to check again here. each event is processed twice, once for the
>> device and once for the master. you need to make sure that kbd->name ==
>> "Virtual core keyboard", you can ignore the actual device for most purposes.
>> the actual device has PointerRootWin, usually, the VCK has the actual focus.
> It seems that when keyboard input is in its paused state only the
> device events are delivered. The core keyboard events are only
> delivered after another mouse event has occurred. The backtrace while
> the old keyboard events are being processed looks like,
Apparently the grab causing this pause is held by xmonad,

    (II) Printing all currently active device grabs:
    Active grab 0x41800ff7 (core) on device 'Virtual core:
          client pid 2835 /home/ben/.xmonad/xmonad-x86_64-linux
          at 1751744 (from passive grab) (device thawed, state
            core event mask 0x4
          passive grab type 4, detail 0x1, activating key 0
          owner-events false, kb 0 ptr 1, confine 0, cursor 0x0
    (II) End list of active device grabs

I'm not sure what this grab is intended to do.


- Ben
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