Description:
When launching any LO app and a configuration lock warning needs to be presented, it results in an empty window (just window decoration and window background content rendered inside) and thus it is not possible to proceed any further. Workaround is to manually delete .lock file (rm ~/.config/libreoffice/4/.lock)

It could be a timing issue as at the beginning the bug was observable only when launching with a file provided (i.e. after click in a file manager on a document), but "plain" startup was fine (content of window was rendered), still after playing around with gdb and strace, "plain" startups also started to fail.

Steps to Reproduce:
1. touch ~/.config/libreoffice/4/.lock
2. libreoffice5.3

Actual Results:  
An empty dialog is displayed.

Expected Results:
Configuration .lock file warning is shown.


Reproducible: Always

User Profile Reset: No

Additional Info:
uname -rv
4.12.0-gentoo #1 SMP Tue Jul 11 18:45:10 EEST 2017

LibreOffice 5.3.4.2 f82d347ccc0be322489bf7da61d7e4ad13fe2ff3

#0  0x00007fcc49700e69 in syscall () from /lib64/libc.so.6
#1  0x00007fcc425c364d in __cxxabiv1::__cxa_guard_acquire (
    g=0x7fcc4ea4d200 <_ZGVZN3rtl13StaticWithArgIN12_GLOBAL__N_18InstanceEN3com3sun4star3uno9ReferenceINS6_17XComponentContextEEENS1_9SingletonEE3getERKS9_E8instance>)
    at /var/tmp/portage/sys-devel/gcc-6.3.0/work/gcc-6.3.0/libstdc++-v3/libsupc++/guard.cc:301
#2  0x00007fcc4b5e2ddc in com_sun_star_comp_framework_Desktop_get_implementation ()
   from /opt/libreoffice5.3/program/libmergedlo.so
#3  0x00007fcc439e5c0f in cppuhelper::ServiceManager::Data::Implementation::createInstance(com::sun::star::uno::Reference<com::sun::star::uno::XComponentContext> const&, bool) () from /opt/libreoffice5.3/program/libuno_cppuhelpergcc3.so.3
#4  0x00007fcc439e9512 in cppuhelper::ServiceManager::createInstanceWithContext(rtl::OUString const&, com::sun::star::uno::Reference<com::sun::star::uno::XComponentContext> const&) () from /opt/libreoffice5.3/program/libuno_cppuhelpergcc3.so.3
#5  0x00007fcc4b97d219 in SfxApplication::Initialize_Impl() () from /opt/libreoffice5.3/program/libmergedlo.so
#6  0x00007fcc4b974be4 in SfxApplication::GetOrCreate() () from /opt/libreoffice5.3/program/libmergedlo.so
#7  0x00007fcc4bbfc7e2 in com_sun_star_comp_sfx2_GlobalEventBroadcaster_get_implementation ()
   from /opt/libreoffice5.3/program/libmergedlo.so
#8  0x00007fcc439e5c0f in cppuhelper::ServiceManager::Data::Implementation::createInstance(com::sun::star::uno::Reference<com::sun::star::uno::XComponentContext> const&, bool) () from /opt/libreoffice5.3/program/libuno_cppuhelpergcc3.so.3
#9  0x00007fcc439e6c21 in (anonymous namespace)::SingletonFactory::createInstanceWithContext(com::sun::star::uno::Reference<com::sun::star::uno::XComponentContext> const&) () from /opt/libreoffice5.3/program/libuno_cppuhelpergcc3.so.3
#10 0x00007fcc4398f3ed in cppu::ComponentContext::lookupMap(rtl::OUString const&) ()
   from /opt/libreoffice5.3/program/libuno_cppuhelpergcc3.so.3
#11 0x00007fcc43991090 in cppu::ComponentContext::getValueByName(rtl::OUString const&) ()
   from /opt/libreoffice5.3/program/libuno_cppuhelpergcc3.so.3
#12 0x00007fcc4c9f4eb9 in Dialog::Execute() () from /opt/libreoffice5.3/program/libmergedlo.so
#13 0x00007fcc4ca15bda in MessageDialog::Execute() () from /opt/libreoffice5.3/program/libmergedlo.so
#14 0x00007fcc4bcbc6cf in desktop::Lockfile_execWarning(desktop::Lockfile*) ()
   from /opt/libreoffice5.3/program/libmergedlo.so
#15 0x00007fcc4b286299 in desktop::Lockfile::check(bool (*)(desktop::Lockfile*)) ()
   from /opt/libreoffice5.3/program/libmergedlo.so
#16 0x00007fcc4bca3fad in desktop::Desktop::Main() () from /opt/libreoffice5.3/program/libmergedlo.so
#17 0x00007fcc4cc95026 in ImplSVMain() () from /opt/libreoffice5.3/program/libmergedlo.so
#18 0x00007fcc4cc95112 in SVMain() () from /opt/libreoffice5.3/program/libmergedlo.so
#19 0x00007fcc4bcc708d in soffice_main () from /opt/libreoffice5.3/program/libmergedlo.so
#20 0x000000000040075b in main ()

strace output in an attachment.


User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0