KDE SC 5.8.5 On a Lenovo Ideapad 110-15ISK (80UD) the Intel HDMI port operates by hotplugging. However, connecting a TV does not make the HDMI audio output available, although the video works. The laptop's own speaker output continues to function. Manually selecting any HDMI configuration/profile creates a dummy output with no sound. In other desktop environments, such as GNOME, the HDMI audio output becomes available automatically on connecting the TV. Output of aplay -l is:- **** List of PLAYBACK Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: CX20751/2 Analog [CX20751/2 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2] Subdevices: 1/1 Subdevice #0: subdevice #0
I found the correct HDMI device (HDMI 2) by installing GNOME and checking through that. On selecting the correct device/port the audio works. However, obviously this is a very tortuous and unintuitive way of determining which device/port number will work. The GUI should at least provide an indication of which one is plugged in.
It is definitely unintuitive to search for a better audio output source. All in all the complete audio toolchain seems gobbled up and you have to click through different settings to find the correct source. Somehow under gnome it works better. Even if you need a audio output source extension to quickly change it, but even under settings a simple click works and hotplug works often too. Can confirm this with a Thinkpad t520. But I have to click audio profile HDMI 1 although I use displayport.
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This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!