In the ubuntu 20.04, we found a regression on HDMI audio. We plug a
HDMI/DP monitor, the output device is the speaker in the output device
combo box, then we select the HDMI from the combo box, the output
device is switched to HDMI audio successfully, but the configuration
box is empty. This will not happen in the ubuntu 18.04, the profile
will show hdmi-stereo in this situation. So I think this is a
regression.
When problem happens, I could see the errors from log:
Gvc: DEBUG: Matching profile for 'output:analog-stereo' is '(null)'
Gvc: DEBUG: Matching profile for 'output:analog-stereo' is '(null)'
Gvc: DEBUG: Matching profile for 'output:analog-stereo' is '(null)'
Through debugging, I found the cc_profile_combo_box_set_device() is
called too early. In the ubuntu 18.04, this function is called after
pulseaudio changes the active_profile, but in the ubuntu 20.04, it is
called ahead of pulseaudio changes the active_profile.
To fix it, add a signal callback function, after pulseaudio changes
the active_profile, this callback function will be called, then call
cc_profile_combo_box_set_device().
Signed-off-by: Hui Wang <hui.wang@canonical.com>
This adds a widget called `CcKeyboardShortcutRow`, sub-classing
`GtkListBoxRow`, to handle a shortcut row. This makes the implementation
a bit tidier, rather than handling it all in `CcKeyboardPanel`, and
allows the widgets that compose the row to be laid out in xml.
This is a prerequisite for moving the shortcuts to a new dialog.
This commit includes all the changes that seem to be necessary for
CcKeyboardItem to be used for dealing with multiple keybindings, without
(yet) changing the user interface to expose this.
The `primary_combo` and `binding` fields of `CcKeyboardItem` are
removed, in favor of the existing `key_combos`. No combination is
"primary", since all of them can now be seen and changed equally.
We treat `CcKeyboardItem.key_combos` as a set, that a combo can be added
to or removed from. Though it continues to be represented as a `GList`,
instead of a `GHashTable`, to preserve ordering.
A lot of the keyboard panel code relied on the assumption that only one
combo can be set for each setting, so this required a variety of
miscellaneous changes.
