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Using the latest ppa:mir-team/qa-testing2 multimonitor was working very
nicely for a few minutes, but then the X server hung:
#0 pthread_cond_wait@@GLIBC_2.3.2 ()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
185 in ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S
#0 pthread_cond_wait@@GLIBC_2.3.2 ()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f2a1143d1ec in
std::condition_variable::wait(std::unique_lock<std::mutex>&) () from
/usr/lib/x86_64-linux-gnu/libstdc++.so.6
#2 0x00007f2a12064e6b in MirWaitHandle::wait_for_all() ()
from /usr/lib/x86_64-linux-gnu/libmirclient.so.2
#3 0x00007f2a122a0291 in ?? ()
from /usr/lib/xorg/modules/extensions/libxmir.so
#4 0x00007f2a15bf17fa in xf86CrtcSetModeTransform ()
#5 0x00007f2a15bfad26 in ?? ()
#6 0x00007f2a15c37cba in RRCrtcSet ()
#7 0x00007f2a15c39108 in ProcRRSetCrtcConfig ()
#8 0x00007f2a15b7cfce in ?? ()
#9 0x00007f2a15b6c52a in ?? ()
#10 0x00007f2a13864de5 in __libc_start_main (main=0x7f2a15b6c160, argc=11,
ubp_av=0x7fff53642628, init=<optimised out>, fini=<optimised out>,
rtld_fini=<optimised out>, stack_end=0x7fff53642618) at libc-start.c:260
#11 0x00007f2a15b6c86f in _start ()
ii xserver-common 2:1.14.2.901-2ubuntu3+xmirMM13
all common files used by various X servers
ii xserver-xephyr 2:1.14.2.901-2ubuntu3+xmirMM13
amd64 nested X server
ii xserver-xorg-core 2:1.14.2.901-2ubuntu3+xmirMM13
amd64 Xorg X server - core server
ii xserver-xorg-video-intel 2:2.21.14-4ubuntu2+xmirMM6
amd64 X.Org X server -- Intel i8xx, i9xx display
driver
ii xserver-xorg-video-nouveau 1:1.0.8-0ubuntu3+xmirMM2
amd64 X.Org X server -- Nouveau display driver
ii xserver-xorg-xmir 2:1.14.2.901-2ubuntu3+xmirMM13
amd64 Xorg - the X.Org X server (module for running
nested in Mir)
** Affects: xorg-server (Ubuntu)
Importance: Critical
Assignee: Chris Halse Rogers (raof)
Status: Fix Released
** Tags: multimonitor
--
XMir hung in xf86CrtcSetModeTransform()
https://bugs.launchpad.net/bugs/1216522
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