René J. V. Bertin wrote on 20260808::12:50:37 re: "Re: Hacking fun with the XCB 
QPA plugin (on retro set-ups)"

>argonel wrote:
>
>> I don't believe the fix for "Broken copy-paste after 49.../50 days" (
>> https://qt-project.atlassian.net/browse/QTBUG-65145,
>> https://codereview.qt-project.org/c/qt/qtbase/+/254187) was backported to
>> 5.9. There are some KDE bugs linked in the Qt bug that might be of interest
>> as well.

Wow, another Y2K-style bug! Trivial to backport, and I guess we'll see if this 
is the only reason though. With my previous Linux notebook I regularly had 
sessions running for more than 2 months if the ACPI firmware didn't act up. 
That means I had terminal apps (Konsole) running for that same length of time, 
and I've run into the copy issue so rarely that I can only remember a single 
instance.

Of course I cannot trigger the issue at will so can't verify right now, but I 
think I have linked the issue to a failure inside libxcb (_xcb_conn_wait() 
returning <0). I've been tracking that one for another reason and thus added 
some debug output to my libxcb build that dumps info about the error to the 
calling terminal, and I *think* I've seen that when the copy issue triggers (on 
Mac). Or I am just remembering the output generated by my own attempts at 
fixing the issue by resetting the selection owner..

R.
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