I tried strace, but I was yet not able to find any abnormal behaviour visible
via strace when I switch to VT and back.
I tried gdb, and it did showed following.
Each time I stoped program in gdb to show it current bt, it was in
select(), both when normally working and while hanging (when on other
VT).
Only thing so far I noticed is that while in other VT, then atop cpu usage
kaffeine=3% pulseaudio=~0%, and in same VT kaffeine=6% pulseaudio=5%
All the above is on geforce 2 mx gfxcard;
Section "Device"
Identifier "Device0"
Driver "nvidia"
# VendorName "NVIDIA Corporation"
EndSection
#0 0xb7f9e410 in __kernel_vsyscall ()
#1 0xb63aa881 in select () from /lib/tls/i686/cmov/libc.so.6
#2 0xb6a930e3 in QEventLoop::processEvents (this=0x81c9eb0, flags=4)
at kernel/qeventloop_x11.cpp:294
#3 0xb6b08f90 in QEventLoop::enterLoop (this=0x81c9eb0)
at kernel/qeventloop.cpp:201
#4 0xb6b08c8e in QEventLoop::exec (this=0x81c9eb0)
at kernel/qeventloop.cpp:148
#5 0xb6aef7df in QApplication::exec (this=0xbfce3140)
at kernel/qapplication.cpp:2761
#6 0x08075f40 in main (argc=22904, argv=0x0)
at /build/buildd/kaffeine-0.8.6/./kaffeine/src/main.cpp:120
--
mplayer vlc kaffeine all players hang/pause when I switch away from the VT they
use (to other desktop or terminal)
https://bugs.launchpad.net/bugs/258158
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