I am running an openSUSE Tumbleweed installation with KDE Plasma 5.4.3 . I tend to use a fair number of programs ( Eclipse, Firefox, Slack, Evolution, Konsole, various java applications ) and after some time I can't open new programs anymore due to
Maximum number of clients reachedxlsclients: unable to open display ":0"
I am unable to determine which program causes the error. When
xlsclients works it displays around 20-30 programs so I suspect that it does not display the right information.
How can I debug this issue and find out which program causes the error?