Comment 24 for bug 282387

I'm also experiencing this problem: scroll emulation set with xinput works initially, but stops working after a suspend/resume. Same versions as above.

I'll add that it also stops working after a mere VT switch (which may be the real cause, since suspend/resume seems to do a VT switch implicitly).

Trying to turn it back on with xinput seems to partly work: button 2 presses stop being emitted and the cursor freezes while button 2 is down, but no button 4/5 events are emitted. (And, occasionally, re-running xinput WILL work after suspend/resume.)