No audio output from speakers on Arch Linux, but headphones work (both wired and Bluetooth)

I'm having trouble with audio output on my Arch Linux setup. While audio works fine through both wired and Bluetooth headphones, I can't get any sound from the built-in speakers. I have already tried the following steps to troubleshoot, but so far nothing has fixed the issue: Setup Details: OS: Arch Linux Audio system: PipeWire (PulseAudio module) Audio Device: Intel Tiger Lake-LP Smart Sound Technology Audio Controller (using snd_hda_intel driver) Steps Taken: Checked the output device status with pactl list short sinks: The built-in audio device (alsa_output.pci-0000_00_1f.3.analog-stereo) is shown as "SUSPENDED." I've attempted to resume it using the following command:

resume alsa_output.pci-0000_00_1f.3.analog-stereo

But I receive the error "No valid command specified." Verified that the audio device is not muted in pavucontrol: The device "Built-in audio control" is selected, and the volume is not muted or set to a low level. Tried playback using paplay and aplay with the following:

/usr/share/sounds/alsa/Front_Center.wav

But I hear no sound from the speakers. Playback works fine with headphones (wired and Bluetooth). Checked ALSA configuration: There are no apparent configuration issues (no ~/.asoundrc or /etc/asound.conf files). Tried restarting PipeWire and PulseAudio with the following commands: systemctl --user restart pipewire systemctl --user restart pulseaudio After restarting, I still can't hear sound from the speakers. Checked volume settings with alsamixer: The volume for the "Master" and "Speaker" channels is set to a high value and not muted. Tested the audio device in a different user account: I created a new user and logged in, but the issue persists even in the fresh environment. Confirmed that the speakers work in Windows (dual-boot setup), indicating that the hardware is functional. Additional Information: The audio device is correctly recognized by the system and using the snd_hda_intel driver. I have confirmed that other devices (headphones) work fine. I cannot find any relevant errors in the system logs.