!!################################ !!ALSA Information Script v 0.5.4 !!################################ !!Script ran on: Tue Jul 14 17:21:04 UTC 2026 !!Linux Distribution !!------------------ Fedora release 44 (Forty Four) NAME="Fedora Linux" ID=fedora PRETTY_NAME="Fedora Linux 44 (Workstation Edition)" LOGO=fedora-logo-icon CPE_NAME="cpe:/o:fedoraproject:fedora:44" DEFAULT_HOSTNAME="fedora" HOME_URL="https://fedoraproject.org/" DOCUMENTATION_URL="https://docs.fedoraproject.org/en-US/fedora/f44/" SUPPORT_URL="https://ask.fedoraproject.org/" BUG_REPORT_URL="https://bugzilla.redhat.com/" REDHAT_BUGZILLA_PRODUCT="Fedora" REDHAT_BUGZILLA_PRODUCT_VERSION=44 REDHAT_SUPPORT_PRODUCT="Fedora" REDHAT_SUPPORT_PRODUCT_VERSION=44 Fedora release 44 (Forty Four) Fedora release 44 (Forty Four) !!DMI Information !!--------------- Manufacturer: raspberrypi Product Name: Raspberry Pi 4 Model B Rev 1.5 Product Version: Firmware Version: 2026.04 System SKU: Board Vendor: raspberrypi Board Name: Raspberry Pi 4 Model B Rev 1.5 !!ACPI Device Status Information !!--------------- !!ACPI SoundWire Device Status Information !!--------------- !!Kernel Information !!------------------ Kernel release: #1 SMP PREEMPT_DYNAMIC Sat Jul 4 19:23:52 UTC 2026 Operating System: GNU/Linux Architecture: aarch64 Processor: unknown SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k7.1.3-200.fc44.aarch64 Library version: Utilities version: 1.2.16 !!Loaded ALSA modules !!------------------- vc4 (card 0) vc4 (card 1) snd_bcm2835 (card 2) !!Sound Servers on this system !!---------------------------- PipeWire: Installed - Yes (/usr/bin/pipewire) Running - Yes Pulseaudio: Installed - Yes (/usr/bin/pulseaudio) Running - Yes !!Soundcards recognised by ALSA !!----------------------------- 0 [vc4hdmi0 ]: vc4-hdmi - vc4-hdmi-0 raspberrypi-RaspberryPi4ModelBRev1.5 1 [vc4hdmi1 ]: vc4-hdmi - vc4-hdmi-1 raspberrypi-RaspberryPi4ModelBRev1.5 2 [Headphones ]: bcm2835_headpho - bcm2835 Headphones bcm2835 Headphones !!PCI Soundcards installed in the system !!-------------------------------------- !!Loaded sound module options !!--------------------------- !!Module: vc4 * : !!Module: vc4 * : !!Module: snd_bcm2835 enable_hdmi : N enable_headphones : Y force_bulk : N num_channels : 8 !!Sysfs card info !!--------------- !!Card: /sys/class/sound/card0 Driver: /sys/bus/platform/drivers/vc4_hdmi Tree: /sys/class/sound/card0 |-- controlC0 | |-- dev | |-- device -> ../../card0 | |-- power | |-- subsystem -> ../../../../../../../class/sound | `-- uevent |-- device -> ../../../fef00700.hdmi |-- id |-- input5 | |-- capabilities | |-- device -> ../../card0 | |-- event5 | |-- id | |-- inhibited | |-- modalias | |-- name | |-- phys | |-- power | |-- properties | |-- subsystem -> ../../../../../../../class/input | |-- uevent | `-- uniq |-- number |-- pcmC0D0p | |-- dev | |-- device -> ../../card0 | |-- pcm_class | |-- power | |-- subsystem -> ../../../../../../../class/sound | `-- uevent |-- power | |-- autosuspend_delay_ms | |-- control | |-- runtime_active_time | |-- runtime_status | `-- runtime_suspended_time |-- subsystem -> ../../../../../../class/sound `-- uevent !!Card: /sys/class/sound/card1 Driver: /sys/bus/platform/drivers/vc4_hdmi Tree: /sys/class/sound/card1 |-- controlC1 | |-- dev | |-- device -> ../../card1 | |-- power | |-- subsystem -> ../../../../../../../class/sound | `-- uevent |-- device -> ../../../fef05700.hdmi |-- id |-- input7 | |-- capabilities | |-- device -> ../../card1 | |-- event7 | |-- id | |-- inhibited | |-- modalias | |-- name | |-- phys | |-- power | |-- properties | |-- subsystem -> ../../../../../../../class/input | |-- uevent | `-- uniq |-- number |-- pcmC1D0p | |-- dev | |-- device -> ../../card1 | |-- pcm_class | |-- power | |-- subsystem -> ../../../../../../../class/sound | `-- uevent |-- power | |-- autosuspend_delay_ms | |-- control | |-- runtime_active_time | |-- runtime_status | `-- runtime_suspended_time |-- subsystem -> ../../../../../../class/sound `-- uevent !!Card: /sys/class/sound/card2 Driver: /sys/bus/vchiq-bus/drivers/bcm2835-audio Tree: /sys/class/sound/card2 |-- controlC2 | |-- dev | |-- device -> ../../card2 | |-- power | |-- subsystem -> ../../../../../../../../class/sound | `-- uevent |-- device -> ../../../bcm2835-audio |-- id |-- number |-- pcmC2D0p | |-- dev | |-- device -> ../../card2 | |-- pcm_class | |-- power | |-- subsystem -> ../../../../../../../../class/sound | `-- uevent |-- power | |-- autosuspend_delay_ms | |-- control | |-- runtime_active_time | |-- runtime_status | `-- runtime_suspended_time |-- subsystem -> ../../../../../../../class/sound `-- uevent !!ALSA Device nodes !!----------------- crw-rw----. 1 root audio 116, 3 Jun 27 02:00 /dev/snd/controlC0 crw-rw----. 1 root audio 116, 5 Jun 27 02:00 /dev/snd/controlC1 crw-rw----. 1 root audio 116, 7 Jun 27 02:00 /dev/snd/controlC2 crw-rw----. 1 root audio 116, 2 Jun 27 02:00 /dev/snd/pcmC0D0p crw-rw----. 1 root audio 116, 4 Jun 27 02:00 /dev/snd/pcmC1D0p crw-rw----. 1 root audio 116, 6 Jun 27 02:00 /dev/snd/pcmC2D0p crw-rw----. 1 root audio 116, 1 Jun 27 02:00 /dev/snd/seq crw-rw----. 1 root audio 116, 33 Jun 27 02:00 /dev/snd/timer /dev/snd/by-path: total 0 drwxr-xr-x. 2 root root 100 Jun 27 02:00 . drwxr-xr-x. 3 root root 220 Jun 27 02:00 .. lrwxrwxrwx. 1 root root 12 Jun 27 02:00 platform-fe00b840.mailbox -> ../controlC2 lrwxrwxrwx. 1 root root 12 Jun 27 02:00 platform-fef00700.hdmi -> ../controlC0 lrwxrwxrwx. 1 root root 12 Jun 27 02:00 platform-fef05700.hdmi -> ../controlC1 !!ALSA configuration files !!------------------------ !!System wide config file (/etc/asound.conf) # # Place your global alsa-lib configuration here... # !!Aplay/Arecord output !!-------------------- APLAY aplay: device_list:279: no soundcards found... ARECORD arecord: device_list:279: no soundcards found... !!Amixer output !!------------- !!-------Mixer controls for card vc4hdmi0 Invalid card number 'vc4hdmi0'. Invalid card number 'vc4hdmi0'. !!-------Mixer controls for card vc4hdmi1 Invalid card number 'vc4hdmi1'. Invalid card number 'vc4hdmi1'. !!-------Mixer controls for card Headphones Invalid card number 'Headphones'. Invalid card number 'Headphones'. !!Alsactl output !!-------------- --startcollapse-- --endcollapse-- !!All Loaded Modules !!------------------ ac97_bus aes_neon_bs bcm2711_thermal bcm2835_dma bcm2835_wdt bcm_phy_lib bcm_phy_ptp bluetooth bnep brcmfmac brcmfmac_wcc brcmutil broadcom btbcm btintel btqca btrtl btsdio cec cfg80211 clk_bcm2711_dvp cpufreq_dt drm_display_helper drm_dma_helper drm_exec dwc2 fat fuse genet gpio_raspberrypi_exp gpu_sched hci_uart i2c_bcm2835 i2c_brcmstb i2c_dev i2c_mux i2c_mux_pinctrl iproc_rng200 joydev leds_gpio ledtrig_default_on lz4_compress lz4hc_compress mdio_bcm_unimac mmc_block mmc_core nvmem_rmem phy_generic pwm_bcm2835 pwrseq_simple qrtr raspberrypi_cpufreq raspberrypi_hwmon reset_gpio rfcomm rfkill rpmb_core sdhci sdhci_iproc sdhci_pltfm snd snd_bcm2835 snd_compress snd_pcm snd_pcm_dmaengine snd_soc_core snd_soc_hdmi_codec snd_timer soundcore sunrpc uas udc_core usb_storage v3d vc4 vchiq vfat zram !!ALSA/HDA dmesg !!-------------- !!Packages installed !!-------------------- alsa-lib-1.2.16.1-1.fc44.aarch64 alsa-ucm-1.2.16.1-1.fc44.noarch alsa-utils-1.2.16-1.fc44.aarch64