Bug 566338 – media-gfx/gnome-screenshot -w segmentation fault on fluxbox

• Product: Gentoo Linux
• Status: RESOLVED OBSOLETE

[Description lolisamurai 2015-11-20 15:05:40 UTC]

Steps to reproduce:
- Set up Xorg and fluxbox
- emerge media-gfx/gnome-screenshot

$ gnome-screenshot -w
** Message: Unable to use GNOME Shell's builtin screenshot interface, resorting to fallback X11.
Segmentation fault

-a and other modes work fine, it's just -w that crashes

[Comment 1 Pacho Ramos 2015-12-12 14:40:58 UTC]

3.18.0 version looks to work ok for me

[Comment 2 lolisamurai 2015-12-12 16:04:50 UTC]

my bad, I didn't even specify what version I was using. I was on gnome-screenshot 3.16.2.
anyhow, I just emerged 3.18.0 and it still has the same issue. I don't know if this is related to the issue, but I'm running dual monitors with xinerama.

[Comment 3 Gilles Dartiguelongue (RETIRED) 2015-12-13 12:18:57 UTC]

Running dual monitor with xinerama here too, on intel chipset, and it just work.
Could you add your emerge --info ? Also, collecting a backtrace would be useful for moving the issue upstream if needs be. You can find instructions on how to do it on the wiki: https://wiki.gentoo.org/wiki/Project:Quality_Assurance/Backtraces

[Comment 4 lolisamurai 2015-12-14 19:19:19 UTC]

emerge --info: http://pastebin.com/N3z3Uya1

backtrace:
$ gdb -q gnome-screenshot
Reading symbols from gnome-screenshot...Reading symbols from /usr/lib64/debug//usr/bin/gnome-screenshot.debug...done.
done.
(gdb) set args -w
(gdb) run
Starting program: /usr/bin/gnome-screenshot -w
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
** Message: Unable to use GNOME Shell's builtin screenshot interface, resorting to fallback X11.
[New Thread 0x7fffed44a700 (LWP 29861)]

Program received signal SIGSEGV, Segmentation fault.
screenshot_fallback_get_pixbuf (rectangle=<optimized out>)
    at screenshot-utils.c:508
508	screenshot-utils.c: No such file or directory.

[Comment 5 Pacho Ramos 2015-12-26 15:17:48 UTC]

(bleh, wrong tab)

[Comment 6 Pacho Ramos 2015-12-26 15:19:56 UTC]

(In reply to lolisamurai from comment #4)
> emerge --info: http://pastebin.com/N3z3Uya1
> 
> backtrace:
> $ gdb -q gnome-screenshot
> Reading symbols from gnome-screenshot...Reading symbols from
> /usr/lib64/debug//usr/bin/gnome-screenshot.debug...done.
> done.
> (gdb) set args -w
> (gdb) run
> Starting program: /usr/bin/gnome-screenshot -w
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/lib64/libthread_db.so.1".
> ** Message: Unable to use GNOME Shell's builtin screenshot interface,
> resorting to fallback X11.
> [New Thread 0x7fffed44a700 (LWP 29861)]
> 
> Program received signal SIGSEGV, Segmentation fault.
> screenshot_fallback_get_pixbuf (rectangle=<optimized out>)
>     at screenshot-utils.c:508
> 508	screenshot-utils.c: No such file or directory.

Please follow the instructions from "Using logging feature to save the backtrace to file" when following https://wiki.gentoo.org/wiki/Project:Quality_Assurance/Backtraces

There are more detailed instructions in:
https://wiki.gentoo.org/wiki/Project:GNOME/GNOME3-Troubleshooting#Getting_backtraces

[Comment 7 Pacho Ramos 2015-12-26 15:21:06 UTC]

(In reply to lolisamurai from comment #4)
> emerge --info: http://pastebin.com/N3z3Uya1
> 
> backtrace:
> $ gdb -q gnome-screenshot
> Reading symbols from gnome-screenshot...Reading symbols from
> /usr/lib64/debug//usr/bin/gnome-screenshot.debug...done.
> done.
> (gdb) set args -w
> (gdb) run
> Starting program: /usr/bin/gnome-screenshot -w
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/lib64/libthread_db.so.1".
> ** Message: Unable to use GNOME Shell's builtin screenshot interface,
> resorting to fallback X11.
> [New Thread 0x7fffed44a700 (LWP 29861)]
> 
> Program received signal SIGSEGV, Segmentation fault.
> screenshot_fallback_get_pixbuf (rectangle=<optimized out>)
>     at screenshot-utils.c:508
> 508	screenshot-utils.c: No such file or directory.

Please follow the instructions from "Using logging feature to save the backtrace to file" when following https://wiki.gentoo.org/wiki/Project:Quality_Assurance/Backtraces

There are more detailed instructions in:
https://wiki.gentoo.org/wiki/Project:GNOME/GNOME3-Troubleshooting#Getting_backtraces

[Comment 8 lolisamurai 2015-12-26 15:27:49 UTC]

Created attachment 420884 [details]
gnome-screenshot-backtrace.log

erm, is this okay?

[Comment 9 Pacho Ramos 2015-12-26 15:31:36 UTC]

The line with "??" shows that you need to rebuild the package providing that lib with debugging symbols too, in this case, glib ;)

[Comment 10 lolisamurai 2015-12-26 16:28:17 UTC]

Created attachment 420888 [details]
gnome-screenshot-backtrace.log

there we go

[Comment 11 Pacho Ramos 2016-07-02 15:21:00 UTC]

please retry with 3.20