[dolphin] [Bug 378155] Dolphin unresponsive to clicks after opening a file in dual monitor

[Elvis Angelaccio]

https://bugs.kde.org/show_bug.cgi?id=378155

Elvis Angelaccio  changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution|--- |DUPLICATE

--- Comment #7 from Elvis Angelaccio  ---
Thanks for confirming.

*** This bug has been marked as a duplicate of bug 363548 ***

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[dolphin] [Bug 378155] Dolphin unresponsive to clicks after opening a file in dual monitor

[Horacio Sanson]

https://bugs.kde.org/show_bug.cgi?id=378155

--- Comment #6 from Horacio Sanson  ---
Indeed this is a duplicate. Both my laptop screen and my external monitor are
2560x1440 resolution.

I also found out that the clicks stop working only on the left side of the
dolphin window as other people commented on the duplicate issue.

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[dolphin] [Bug 378155] Dolphin unresponsive to clicks after opening a file in dual monitor

[Elvis Angelaccio]

https://bugs.kde.org/show_bug.cgi?id=378155

--- Comment #5 from Elvis Angelaccio  ---
Ah right, this sounds like a duplicate of bug 363548. Is your external monitor
high dpi?

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[dolphin] [Bug 378155] Dolphin unresponsive to clicks after opening a file in dual monitor

[Elvis Angelaccio]

https://bugs.kde.org/show_bug.cgi?id=378155

Elvis Angelaccio  changed:

   What|Removed |Added

 Status|NEEDSINFO   |UNCONFIRMED
 Resolution|BACKTRACE   |---

--- Comment #4 from Elvis Angelaccio  ---
Thanks, indeed the backtrace confirms that there is no freeze, just an idle
process waiting for input events.

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[dolphin] [Bug 378155] Dolphin unresponsive to clicks after opening a file in dual monitor

[Horacio Sanson]

https://bugs.kde.org/show_bug.cgi?id=378155

--- Comment #3 from Horacio Sanson  ---
Here is the backtrace. I must make clear that Dolphin is not freezing. I can
click the window and move it around, resize it, click the menus and all that
works fine. The file and directory icons/list in the files and the places
panels are the ones I cannot click or highlight. It is like the mouse
over/click event is not being registered in those places.

To take the backtrace:

  - Installed dolphin-dbgsym package via apt-get
  - Started dolphin with "gdb dolphin"
  - Executed start/continue inside gdb.
  - In dolphin opened a PDF file by clicking on it.
  - Verified that I can no longer click on any other file.
  - Ctrl-c inside dbg
  - Executed backtrace (shown below).

[~]> gdb dolphin
GNU gdb (Ubuntu 7.11.1-0ubuntu1~16.04) 7.11.1
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later 
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
.
Find the GDB manual and other documentation resources online at:
.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from dolphin...Reading symbols from
/usr/lib/debug/.build-id/be/77756e7b53dc825e81156fab3da004640499c9.debug...done.
done.
(gdb) start
Temporary breakpoint 1 at 0x4006b0: file
/workspace/build/obj-x86_64-linux-gnu/src/dolphin_dummy.cpp, line 3.
Starting program: /usr/bin/dolphin
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

Temporary breakpoint 1, main (argc=1, argv=0x7fffd048)
at /workspace/build/obj-x86_64-linux-gnu/src/dolphin_dummy.cpp:3
3   /workspace/build/obj-x86_64-linux-gnu/src/dolphin_dummy.cpp: No such
file or directory.
(gdb) continue
Continuing.
[New Thread 0x7fffe210a700 (LWP 25069)]
[New Thread 0x7fffdbfff700 (LWP 25070)]
Fontconfig warning:
"/home/ryujin/.config/fontconfig/conf.d/69-language-selector-ja-jp.conf", line
172: Having multiple values in  isn't supported and may not work as
expected
[New Thread 0x7fffd2b85700 (LWP 25095)]
Cannot creat accessible child interface for object:  PlacesView(0xc7a650) 
index:  15
^C
Thread 1 "dolphin" received signal SIGINT, Interrupt.
0x77832b5d in poll () at ../sysdeps/unix/syscall-template.S:84
84  ../sysdeps/unix/syscall-template.S: No such file or directory.
(gdb) backtrace
#0  0x77832b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x7fffec54838c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x7fffec54849c in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x725c373f in
QEventDispatcherGlib::processEvents(QFlags) ()
   from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x7256e0ba in
QEventLoop::exec(QFlags) ()
   from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x725766cc in QCoreApplication::exec() () from
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x77b5dde6 in kdemain (argc=1, argv=) at
/workspace/build/src/main.cpp:150
#7  0x77758830 in __libc_start_main (main=0x4006b0 ,
argc=1,
argv=0x7fffd048, init=, fini=,
rtld_fini=,
stack_end=0x7fffd038) at ../csu/libc-start.c:291
#8  0x004006e9 in _start ()

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[dolphin] [Bug 378155] Dolphin unresponsive to clicks after opening a file in dual monitor

[Elvis Angelaccio]

https://bugs.kde.org/show_bug.cgi?id=378155

Elvis Angelaccio  changed:

   What|Removed |Added

 CC||elvis.angelac...@kde.org
 Status|UNCONFIRMED |NEEDSINFO
 Resolution|--- |BACKTRACE

--- Comment #2 from Elvis Angelaccio  ---
I cannot reproduce on my laptop + external monitor setup.

If you can reproduce it reliably, please post a gdb backtrace after the freeze
happens:

- gdb dolphin
- make it freeze
- ctrl+c in gdb prompt
- type 'backtrace' and copy here the output you get.

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[dolphin] [Bug 378155] Dolphin unresponsive to clicks after opening a file in dual monitor

[Horacio Sanson]

https://bugs.kde.org/show_bug.cgi?id=378155

--- Comment #1 from Horacio Sanson  ---
Just found an interesting behavior with this issue. Dolphin becomes
unresponsive to clicks only when it is in the external screen.

I can still drag the dolphin window between my main (laptop) screen and my
external monitor. If I drag dolphin and put it in the main laptop screen I can
click on any icons/places and everything works as normal.

Once I drag the dolphin window to the external monitor screen I can no longer
click on any icons or places.

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