-----Original Message----- From: Bastien Nocera [mailto:hadess hadess net] Sent: Monday, 26 May, 2014 14:15 To: John Frankish Cc: cheese-list gnome org Subject: Re: cheese-3.10.2 does not detect webcam but guvcview does On Sat, 2014-05-24 at 15:07 +0000, John Frankish wrote:#6 0x000000000040f0d3 in cheese_effects_manager_add_effect (effect=<optimized out>, name=<optimized out>, self=0x1ed5610) at src/cheese-effects-manager.c:222Still missing important debug information I'm afraid.'seems the trick is to compile with "-ggdb"It's trying to build the Time delay effect which needs the "frei0r-filter- delay0r" plugin (which lives in the gst-plugins-bad package). Cheese should probably do better at avoiding crashing when an effect isn't available. Could you please re-test with cheese 3.12.x, and file a bug if the problem persists?Thanks Hmm - assuming we're referring to /usr/local/lib/gstreamer-1.0/libgstfrei0r.so, it is present and correct... Are you sure that your GStreamer installation knows to go get the plugin there?Some progress being made at last I don't see it written anywhere, but the gstreamer frei0r plugin requiresfrei0r-plugins in order to work. Are you filing bugs about this, or are we just debugging your hand-made distribution?https://bugzilla.gnome.org/show_bug.cgi?id=730786There's a test call cheese-test-monitor in the cheese sources which you can use to debug your problem. The device monitor code uses udev to enumerate devices. Attach the output of "udevadm info --export-db" so we can see if the camera is detected properly.cheese-test-monitor doesn't do anything (cheese-test-camera seg faults). Udev output attachedYour udev installation is probably broken, as it doesn't tag the laptop builtin camera with the necessary V4L tags.
Indeed - hopefully fixed now - see attached. But (is it missing a ~/.config/something file not created on install?).. Program received signal SIGSEGV, Segmentation fault. 0x00007ffff7bd6b06 in cheese_camera_device_get_best_format (device=0x1fe37a0) at libcheese/cheese-camera-device.c:970 970 libcheese/cheese-camera-device.c: No such file or directory. (gdb) bt #0 0x00007ffff7bd6b06 in cheese_camera_device_get_best_format (device=0x1fe37a0) at libcheese/cheese-camera-device.c:970 #1 0x00007ffff7bdcf70 in cheese_camera_set_new_caps (camera=0x662a30) at libcheese/cheese-camera.c:764 #2 0x00007ffff7bdd232 in cheese_camera_play (camera=0x662a30) at libcheese/cheese-camera.c:806 #3 0x000000000042310d in cheese_application_setup_camera (self=0x6621a0) at src/cheese-application.c:645 #4 0x0000000000421f9b in cheese_application_common_init.2720 (self=0x6621a0) at src/cheese-application.c:360 #5 0x000000000042219e in cheese_application_real_activate.2686 (base=0x6621a0) at src/cheese-application.c:394 #6 0x00007fffed4274c7 in g_signal_emit_valist () from /usr/local/lib/libgobject-2.0.so.0 #7 0x00007fffed4392ee in g_signal_emit () from /usr/local/lib/libgobject-2.0.so.0 #8 0x0000000000422381 in cheese_application_real_command_line.2689 (base=0x6621a0, cl=0x67d2e0) at src/cheese-application.c:442 #9 0x00007fffed20ccdc in ffi_call_unix64 () from /usr/local/lib/libffi.so.6 #10 0x00007fffed20c970 in ffi_call () from /usr/local/lib/libffi.so.6 #11 0x00007fffed42482a in g_cclosure_marshal_generic_va () from /usr/local/lib/libgobject-2.0.so.0 #12 0x00007fffed4274c7 in g_signal_emit_valist () from /usr/local/lib/libgobject-2.0.so.0 #13 0x00007fffed4392ee in g_signal_emit () from /usr/local/lib/libgobject-2.0.so.0 #14 0x00007fffee3682d6 in ?? () from /usr/local/lib/libgio-2.0.so.0 #15 0x00007fffee2c8c9e in ?? () from /usr/local/lib/libgio-2.0.so.0 #16 0x00007fffee2ced19 in g_application_run () from /usr/local/lib/libgio-2.0.so.0 #17 0x000000000040ed5e in _vala_main (args=0x7fffffffeb38, args_length1=1) at src/cheese-main.c:68 #18 0x000000000040edad in main (argc=1, argv=0x7fffffffeb38) at src/cheese-main.c:83
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udev_db_1.tar.gz
Description: udev_db_1.tar.gz