ac164e5887
When NumLock is on and a new keymap is applied, the next modifier state change will turn off that LED (but leave the state enabled). The cause for this is a bit convoluted: * the SLI explicitState is copied from the current state in ProcXkbGetKbdByName. Thus, if NumLock is on, that state is 0x2. * on the next modifier key press (e.g. Shift), XkbApplyState() calls into XkbUpdateIndicators() -> XkbUpdateLedAutoState() to update SLIs (if any) for the currently changed modifier. But it does so with a mask only for the changed modifier (i.e. for Shift). * XkbUpdateLedAutoState() calculates the state based on this mask and ends up with 0 because we don't have a Shift LED and we masked out the others. * XkbUpdateLedAutoState() compares that state with the previous state (which is still 0x2) and then proceeds to turn the LED off This doesn't happen in the normal case because either the mask encompasses all modifiers or the state matches of the masked-out modifiers matches the old state. Avoid this issue by forcing an SLI update after changing the keymap. This updates the sli->effectiveState and thus restores everything to happy working order. https://bugzilla.redhat.com/show_bug.cgi?id=1047151 Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by: Daniel Stone <daniels@collabora.com>
X Server
The X server accepts requests from client applications to create windows,
which are (normally rectangular) "virtual screens" that the client program
can draw into.
Windows are then composed on the actual screen by the X server
(or by a separate composite manager) as directed by the window manager,
which usually communicates with the user via graphical controls such as buttons
and draggable titlebars and borders.
For a comprehensive overview of X Server and X Window System, consult the
following article:
http://en.wikipedia.org/wiki/X_server
All questions regarding this software should be directed at the
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Please submit bug reports to the Xorg bugzilla:
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git://anongit.freedesktop.org/git/xorg/xserver
http://cgit.freedesktop.org/xorg/xserver
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