Public bug reported:
Hi,
A big issue when using QEMU's VNC server (VNC KVM) is that, when there's
a network lag, unintended keypresses go through to the QEMU guest VM.
This is frequently "enter" keypresses, causing all kinds of unintended
consequences in the VM. So basically it's extremely dangerous.
This is because the VNC protocol's keyboard interaction is implemented
in terms of key down - key up events, making the server's keyboard
autorepeat kick in when it should not.
For this reason, it would be great if QEMU's VNC server part would be enhanced
with an option such that when a VNC protocol key down is received, then locally
that is treated as one single keypress only (I don't know how that should be
implemented but I guess either as an immediate key down - key up sequence
locally, or key down + key up after say 0.05 seconds), instead of waiting for
the key up event from the VNC client.
Thanks!
** Affects: qemu
Importance: Undecided
Status: New
** Tags: extension keyboard kvm norepeat repeat server vnc
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https://bugs.launchpad.net/bugs/1502884
Title:
Super important feature req: QEMU VNC server: Introduce a keyboard
"norepeat" option!
Status in QEMU:
New
Bug description:
Hi,
A big issue when using QEMU's VNC server (VNC KVM) is that, when
there's a network lag, unintended keypresses go through to the QEMU
guest VM.
This is frequently "enter" keypresses, causing all kinds of unintended
consequences in the VM. So basically it's extremely dangerous.
This is because the VNC protocol's keyboard interaction is implemented
in terms of key down - key up events, making the server's keyboard
autorepeat kick in when it should not.
For this reason, it would be great if QEMU's VNC server part would be
enhanced with an option such that when a VNC protocol key down is received,
then locally that is treated as one single keypress only (I don't know how that
should be implemented but I guess either as an immediate key down - key up
sequence locally, or key down + key up after say 0.05 seconds), instead of
waiting for the key up event from the VNC client.
Thanks!
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