** Description changed: - This bug is for tracking purpose. + [Impact] + On the machine with the legacy HDA audio driver, suppose the current output device is Speaker, users plug a HDMI monitor and select the HDMI audio as the current output device in the g-c-c, after that the output volume can't be adjusted through the volume-slider in the g-c-c. The UI of the volume-slider could be changed, but the output volume doesn't change. + + [Fix] + Backport 1 upstream commit 0f18a662be6ee0d225249d1ad003dfef69294449. The root cause of this issue is the stream is not got when changing the output-device, the patch adds the getting stream in the update_sink callback, this could fix this bug. + + [Test] + run the patches g-c-c, plug a hdmi monitor, select the HDMI audio from g-c-c, then change the output volume via volume-slider, play music, the sound could be changed with the adjustment with the volume-slider. + + [Where problems will occur] + This patch brings the change to the output and input volume adjustment in the cc-sound-panel, this could make the output/input volume changing not work anymore, for example, the internal speaker or internal mic work well, after plugging a headset, the output device changes to headphone, the intput device changes to Mic, then the volume adjustment doesn't work on headphone and Mic anymore. But this possibility is very low since I tested the patch on different Lenovo and Dell machines, no regression found so far.
-- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/1938747 Title: [SRU] can't adjust output volume through volume-slider after changing output-device To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1938747/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs