(By the way, I realize that this is not a place to get support, but you should help the bug reported to test: Is it good to run my production PC with the upstream kernel from now on? or it it better to uninstall it after finishing testing?)
Also: I told that it does work with Skype by mistake. Video cam does not work in Skype, too.
$ uname -a
Linux victor-pc 4.18.0-041800rc2-generic #201806241430 SMP Sun Jun 24 14:33:07 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
~,0$ cheese
(cheese:2433): Gtk-WARNING **: 01:11:18.402: Theme parsing error: cheese.css:7:35: The style property GtkScrollbar:min-slider-length is deprecated and shouldn't be used anymore. It will be removed in a future version
** Message: 01:11:18.486: cheese-application.vala:211: Error during camera setup: No device found
(cheese:2433): GLib-GIO-CRITICAL **: 01:11:18.497: g_settings_set_value: key 'camera' in 'org.gnome.Cheese' expects type 's', but a GVariant of type '(null)' was given
It does not work with the upstream kernel.
(By the way, I realize that this is not a place to get support, but you should help the bug reported to test: Is it good to run my production PC with the upstream kernel from now on? or it it better to uninstall it after finishing testing?)
Also: I told that it does work with Skype by mistake. Video cam does not work in Skype, too.
$ uname -a 041800rc2- generic #201806241430 SMP Sun Jun 24 14:33:07 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
Linux victor-pc 4.18.0-
~,0$ cheese
(cheese:2433): Gtk-WARNING **: 01:11:18.402: Theme parsing error: cheese.css:7:35: The style property GtkScrollbar: min-slider- length is deprecated and shouldn't be used anymore. It will be removed in a future version application. vala:211: Error during camera setup: No device found
** Message: 01:11:18.486: cheese-
(cheese:2433): cheese-CRITICAL **: 01:11:18.497: cheese_ camera_ device_ get_name: assertion 'CHEESE_ IS_CAMERA_ DEVICE (device)' failed
(cheese:2433): GLib-CRITICAL **: 01:11:18.497: g_variant_ new_string: assertion 'string != NULL' failed
(cheese:2433): GLib-CRITICAL **: 01:11:18.497: g_variant_ref_sink: assertion 'value != NULL' failed
(cheese:2433): GLib-GIO-CRITICAL **: 01:11:18.497: g_settings_ schema_ key_type_ check: assertion 'value != NULL' failed
(cheese:2433): GLib-CRITICAL **: 01:11:18.497: g_variant_ get_type_ string: assertion 'value != NULL' failed
(cheese:2433): GLib-GIO-CRITICAL **: 01:11:18.497: g_settings_ set_value: key 'camera' in 'org.gnome.Cheese' expects type 's', but a GVariant of type '(null)' was given
(cheese:2433): GLib-CRITICAL **: 01:11:18.497: g_variant_unref: assertion 'value != NULL' failed
** (cheese:2433): CRITICAL **: 01:11:18.497: cheese_ preferences_ dialog_ setup_resolutio ns_for_ device: assertion 'device != NULL' failed