Okay, I have done some new tests, in two totally different computers, one with
Intel graphics card and the other with ATI/AMD graphics card.
With X server to becomes crazy I mean, all windows starting to flash and being
totally unresponsive for instance.
An important discovery is that the bug only occurs when Quassel window is
maximized and then you put it in full-screen. Then X server freezes screen
image and becomes totally unresponsive to mouse or keyboard events (or in rare
occasions, it becomes a little crazy). At this point, with Intel graphics
computer, I can jump to a tty and restart kdm service to can use X server
again. But in the ATI graphics computer, going to tty causes a total system
hang, resulting in a dark but flashing screen, Alt + Impr + k does nothing, but
Alt + Impr + b hardly reboots the system.
While X server was frozen, I have take a look at CPU and memory usage with top
command, and I did not see any strange.
Can't you reproduce the bug? Can I give any other valuable debug
information or backtrace?
** Changed in: quassel (Ubuntu)
Status: Incomplete => New
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https://bugs.launchpad.net/bugs/847484
Title:
quassel crashed with SIGSEGV in _IO_vfprintf_internal()
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