Re: [Bug 2155775] Re: ALC295 headset microphone not detected on Acer Predator PT315-53. I tried a workaround but it sound terribles anyways

Hi, The microphone works better Thank you very much for the suggestion Have a nice Sunday El dom, 7 jun 2026 a las 1:50, Daniel Letzeisen (<2155775@bugs.launchpad.net>) escribió: > Have you tried with model=alc2xx-fixup-headset-mic instead of the one > suggested by AI (which you should remove)? > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/2155775 > > Title: > ALC295 headset microphone not detected on Acer Predator PT315-53. I > tried a workaround but it sound terribles anyways > > Status in linux package in Ubuntu: > New > > Bug description: > I made Sonnet make a description of what we tried to solve together so > I can paste it here because I'm not an expert. I just wanted to tell > you that I'm not an AI and I hope that it helps. Thanks for your work > anyways > > 1) Ubuntu Release: > Description: Ubuntu 24.04.4 LTS > Release: 24.04 > > 2) Package version: > linux-image-6.8.0-124-generic: 6.8.0-124.124 > > 3) What you expected to happen: > Plugging a TRRS headset into the 3.5mm combo jack should automatically > detect > both the headphone output and the headset microphone, making it > available as > an input source in sound settings. > > 4) What happened instead: > Only the headphone output is detected. The microphone input does not > appear > in Settings → Sound → Input. The input port shows "availability unknown" > in PipeWire. A manual workaround is required: > > echo "options snd-hda-intel model=alc295,dell-headset-multi" | sudo > tee /etc/modprobe.d/alsa-base.conf > > This needs to be applied after every fresh install and is not documented > anywhere, > making it a poor experience for users of this laptop model (Acer > Predator PT315-53, > Realtek ALC295, Subsystem ID: 0x10251540). > > == Problem == > When a 3.5mm TRRS headset is plugged into the combo jack, the microphone > is not detected. Only the headphone output works. The input source shows > "availability unknown" and no headset mic port appears in > PipeWire/PulseAudio. > > == Workaround == > Adding the following to /etc/modprobe.d/alsa-base.conf fixes the issue: > > options snd-hda-intel model=alc295,dell-headset-multi > > After reboot, the headset microphone is detected and works correctly. > > == Expected fix == > Add a SND_PCI_QUIRK entry for this subsystem ID in > sound/pci/hda/patch_realtek.c so the workaround is applied automatically: > > SND_PCI_QUIRK(0x1025, 0x1540, "Acer Predator PT315-53", > ALC295_FIXUP_DELL_HEADSET_MULTI), > > Similar fixes have already been merged for other Acer models (Nitro 5, > Helios 300) > with the same ALC295 codec. > > == Steps to reproduce == > 1. Boot Ubuntu 24.04 on Acer Predator PT315-53 > 2. Plug in a TRRS headset to the 3.5mm combo jack > 3. Check Settings → Sound → Input — microphone is not listed > 4. Run: pactl list sources — only "analog-input-mic" with "availability > unknown" > > Thank you > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2155775/+subscriptions > > -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/2155775 Title: ALC295 headset microphone not detected on Acer Predator PT315-53. I tried a workaround but it sound terribles anyways Status in linux package in Ubuntu: New Bug description: I made Sonnet make a description of what we tried to solve together so I can paste it here because I'm not an expert. I just wanted to tell you that I'm not an AI and I hope that it helps. Thanks for your work anyways 1) Ubuntu Release: Description: Ubuntu 24.04.4 LTS Release: 24.04 2) Package version: linux-image-6.8.0-124-generic: 6.8.0-124.124 3) What you expected to happen: Plugging a TRRS headset into the 3.5mm combo jack should automatically detect both the headphone output and the headset microphone, making it available as an input source in sound settings. 4) What happened instead: Only the headphone output is detected. The microphone input does not appear in Settings → Sound → Input. The input port shows "availability unknown" in PipeWire. A manual workaround is required: echo "options snd-hda-intel model=alc295,dell-headset-multi" | sudo tee /etc/modprobe.d/alsa-base.conf This needs to be applied after every fresh install and is not documented anywhere, making it a poor experience for users of this laptop model (Acer Predator PT315-53, Realtek ALC295, Subsystem ID: 0x10251540). == Problem == When a 3.5mm TRRS headset is plugged into the combo jack, the microphone is not detected. Only the headphone output works. The input source shows "availability unknown" and no headset mic port appears in PipeWire/PulseAudio. == Workaround == Adding the following to /etc/modprobe.d/alsa-base.conf fixes the issue: options snd-hda-intel model=alc295,dell-headset-multi After reboot, the headset microphone is detected and works correctly. == Expected fix == Add a SND_PCI_QUIRK entry for this subsystem ID in sound/pci/hda/patch_realtek.c so the workaround is applied automatically: SND_PCI_QUIRK(0x1025, 0x1540, "Acer Predator PT315-53", ALC295_FIXUP_DELL_HEADSET_MULTI), Similar fixes have already been merged for other Acer models (Nitro 5, Helios 300) with the same ALC295 codec. == Steps to reproduce == 1. Boot Ubuntu 24.04 on Acer Predator PT315-53 2. Plug in a TRRS headset to the 3.5mm combo jack 3. Check Settings → Sound → Input — microphone is not listed 4. Run: pactl list sources — only "analog-input-mic" with "availability unknown" Thank you To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2155775/+subscriptions