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Bug#794959: marked as done (kwin-x11: kwin crashes on startup)

Your message dated Thu, 23 Mar 2017 14:30:51 +0100
with message-id <20170323133039.di5ibksnnykd3qyx@gnuservers.com.ar>
and subject line Re: Bug#794959: kwin-x11: kwin crashes on startup
has caused the Debian Bug report #794959,
regarding kwin-x11: kwin crashes on startup
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
794959: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=794959
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: kwin-x11
Version: 4:5.3.2-3
Severity: important

Dear Maintainer,

Kwin crashes on startup. This happens in every possible use:
1. Using kwin_x11 --replace to replace a window manager of another
desktop environment causes it to crash. The details tab just says it segfaults.

2. Starting plasma 5 normally through sddm or another display manager will simply
make Plamsa 5 freeze after the loading bar is full or once the wallpaper is loaded up.
There is no way to get a crash log here since no prompts show up nor does the sddm
service print an error to the journal nor does Kwin print to any log. The only
way I've confirmed that this is a kwin bug is:

3. Running startkde (by first stopping the sddm/display manager, running 'sudo Xorg` in
a VT terminal, switching to another terminal and running 'DISPLAY=:0 starkde'). This
causes Plamsa 5 to load up normally and display the bar which once again freezes once full.
Switching back to the VT with startkde, KCrash reports that kwin_x11 has crashed
with the reason being segfault.

I've also confirmed that this is not related in any way to the current Plasma 5 crashes on
Intel using the 'sna' accerelation method. Switching to 'uxa' has no effect on the kwin
crashes.
The crashes/startup freezes also occur for a completely new, just created user account, so it's
not a config problem.
When sddm is restarted and the normal startup procedure is attempted, switching back to a VT
once the freeze happens prints that libQt5Sql has segfaulted, though this does not always happen
so I don't think this is related.


-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (900, 'unstable'), (800, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.2.0-rc4-youmu (SMP w/2 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages kwin-x11 depends on:
ii  kwin-common          4:5.3.2-3
ii  libc6                2.21-0experimental0
ii  libkf5i18n5          5.12.0-1
ii  libkf5windowsystem5  5.12.0-1
ii  libqt5core5a         5.4.2+dfsg-8
ii  libqt5gui5           5.4.2+dfsg-8
ii  libqt5widgets5       5.4.2+dfsg-8
ii  libqt5x11extras5     5.4.2-2
ii  libstdc++6           5.2.1-12
ii  libxcb1              1.10-3+b1

kwin-x11 recommends no packages.

kwin-x11 suggests no packages.

-- debconf-show failed

--- End Message ---
--- Begin Message --- 
¡Hola Diederik!

El 2015-08-08 a las 20:48 +0200, Diederik de Haas escribió:
Downgrade the breeze packages to the version in testing will likely fix it. See also #794581, #794809 and #794573
I agree with Diederik that this issue was caused by an out of order kdecoration build (#794581). This kind of issues should be either completely gone or almost gone with the set of script that we are currently using to bump the build dependencies. I'm closing this issue. 

Happy hacking,
--
"UNIX is basically a simple operating system, but you have to be a genius to
understand the simplicity."
-- Dennis Ritchie
Saludos /\/\ /\ >< `/

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