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Date: Wed, 15 Sep 2021 04:59:02 -0500
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Subject: cygwin terminal window disrupts scroll-lock state
To: cygwin AT cygwin DOT com
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From: Eric Adams via Cygwin <cygwin AT cygwin DOT com>
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Hi,

In the last few days, I have noticed a new behavior. Activating or
deactivating a Cygwin terminal window may change the state of my
keyboard's scroll-lock light. Inside a terminal window, the keyboard
scroll-lock key may not change the corresponding light.

What I have:
my startup icon command:  C:\cygwin64\bin\mintty.exe -i /Cygwin-Terminal.ico -
my shell: tcsh
my prompt:  '%m:%c3 \!> '
my OS: Windows 10 Home / 21H1 / 19043.1237
my keyboard: CoolerMaster Devastator II (illuminated)

If I activate a terminal window, the scroll-lock light may (or may
not) change state. If I press the scroll-lock key, the light may (or
may not) change state. Holding the key down causes the light to
flicker, and on releasing the key the final state may be either on or
off. Returning focus to a windows application seems to restore the
"desired" scroll-lock state.

My observation is based on the use of the scroll-lock light to control
the illumination of this keyboard.

Thanks for your attention,
Eric Adams.

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