Finally workarounded the problem going to Audio Volume Settings on KDE. It happens that on Audio Volume tab, Advanced, there is an option which is greyed out, because the dependencies are missing:
"Automatically switch all running streams when a new output becomes available" (Requires 'module-gconf' PulseAudio module): it's greyed out.
To redirect audio from speakers to headphones/earphones, it has to be done manually: go to Profile list in same tab and change from "Analog Stereo Output" or "Analog Surround 4.0 Output" to "Digital Stereo (IEC958) output". That way there is no more sound on the speaker but do on the headphones.
Hi,
It sounds like this isn't a kernel bug. Did you try installing pulseaudio-module-gconf like it advised? If that doesn't address the problem, then it's a problem with KDE, I'd guess.
On my notebook, sound works on speaker, but when I connect the headphones/earphones to the 3.5mm jack, no sound on them. Running fedora workstation. On Ubuntu it works by default, probably due to proprietary drivers? [root@localhost ~]# lspci -k 00:1f.3 Audio device: Intel Corporation Sunrise Point-H HD Audio (rev 31) Subsystem: Micro-Star International Co., Ltd. [MSI] Device 11b1 Kernel driver in use: snd_hda_intel Kernel modules: snd_hda_intel 01:00.1 Audio device: NVIDIA Corporation GP104 High Definition Audio Controller (rev a1) Subsystem: Micro-Star International Co., Ltd. [MSI] Device 11bb Kernel driver in use: snd_hda_intel Kernel modules: snd_hda_intel [root@localhost ~]# arecord -l **** List of CAPTURE Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC898 Analog [ALC898 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 [root@localhost ~]# arecord -L null Discard all samples (playback) or generate zero samples (capture) pulse PulseAudio Sound Server default Default ALSA Output (currently PulseAudio Sound Server) sysdefault:CARD=PCH HDA Intel PCH, ALC898 Analog Default Audio Device front:CARD=PCH,DEV=0 HDA Intel PCH, ALC898 Analog Front speakers [root@localhost ~]# record -l open /dev/mixer: No such file or directory [root@localhost ~]# cat /proc/asound/cards 0 [PCH ]: HDA-Intel - HDA Intel PCH HDA Intel PCH at 0xda120000 irq 131 1 [NVidia ]: HDA-Intel - HDA NVidia HDA NVidia at 0xdc080000 irq 17 [root@localhost ~]# aplay -l **** List of PLAYBACK Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC898 Analog [ALC898 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 1: ALC898 Digital [ALC898 Digital] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2] Subdevices: 1/1 Subdevice #0: subdevice #0 [root@localhost ~]# aplay -L null Discard all samples (playback) or generate zero samples (capture) pulse PulseAudio Sound Server default Default ALSA Output (currently PulseAudio Sound Server) sysdefault:CARD=PCH HDA Intel PCH, ALC898 Analog Default Audio Device front:CARD=PCH,DEV=0 HDA Intel PCH, ALC898 Analog Front speakers surround21:CARD=PCH,DEV=0 HDA Intel PCH, ALC898 Analog 2.1 Surround output to Front and Subwoofer speakers surround40:CARD=PCH,DEV=0 HDA Intel PCH, ALC898 Analog 4.0 Surround output to Front and Rear speakers surround41:CARD=PCH,DEV=0 HDA Intel PCH, ALC898 Analog 4.1 Surround output to Front, Rear and Subwoofer speakers surround50:CARD=PCH,DEV=0 HDA Intel PCH, ALC898 Analog 5.0 Surround output to Front, Center and Rear speakers surround51:CARD=PCH,DEV=0 HDA Intel PCH, ALC898 Analog 5.1 Surround output to Front, Center, Rear and Subwoofer speakers surround71:CARD=PCH,DEV=0 HDA Intel PCH, ALC898 Analog 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers iec958:CARD=PCH,DEV=0 HDA Intel PCH, ALC898 Digital IEC958 (S/PDIF) Digital Audio Output hdmi:CARD=NVidia,DEV=0 HDA NVidia, HDMI 0 HDMI Audio Output hdmi:CARD=NVidia,DEV=1 HDA NVidia, HDMI 1 HDMI Audio Output hdmi:CARD=NVidia,DEV=2 HDA NVidia, HDMI 2 HDMI Audio Output