Sin sonido instalación nueva KDE

Hola soy nuevo en Manjaro, relice una instalacion limpia y el sonido no funciona, podrian ayudarme?

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System:
Kernel: 5.9.16-1-MANJARO x86_64 bits: 64 compiler: gcc v: 10.2.0
Desktop: KDE Plasma 5.20.4 tk: Qt 5.15.2 wm: kwin_x11 dm: SDDM
Distro: Manjaro Linux
Machine:
Type: Laptop System: Dell product: G3 3590 v: N/A serial:
Chassis: type: 10 serial:
Mobo: Dell model: 027M7R v: A00 serial: UEFI: Dell v: 1.11.1
date: 08/19/2020
Battery:
ID-1: BAT0 charge: 47.4 Wh condition: 47.4/51.0 Wh (93%)
volts: 12.5/11.4 model: LGC-LGC4.474 DELL 415CG98 type: Li-ion
serial: status: Full
Memory:
RAM: total: 31.2 GiB used: 1.88 GiB (6.0%)
RAM Report:
permissions: Unable to run dmidecode. Root privileges required.
CPU:
Info: Quad Core model: Intel Core i5-9300H bits: 64 type: MT MCP
arch: Kaby Lake note: check rev: A L2 cache: 8 MiB
flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
bogomips: 38408
Speed: 800 MHz min/max: 800/4100 MHz Core speeds (MHz): 1: 800 2: 800
3: 800 4: 800 5: 800 6: 800 7: 801 8: 800
Graphics:
Device-1: Intel UHD Graphics 630 vendor: Dell driver: i915 v: kernel
bus ID: 00:02.0 chip ID: 8086:3e9b
Device-2: NVIDIA TU117M [GeForce GTX 1650 Mobile / Max-Q] vendor: Dell
driver: nouveau v: kernel bus ID: 01:00.0 chip ID: 10de:1f91
Device-3: Realtek Integrated_Webcam_HD type: USB driver: uvcvideo
bus ID: 1-5:4 chip ID: 0bda:5521 serial:
Display: x11 server: X. Org 1.20.10 compositor: kwin_x11
driver: intel,modesetting,nouveau alternate: fbdev,nv,vesa resolution:
1: 1920x1080~60Hz 2: 1920x1200~60Hz s-dpi: 96
OpenGL: renderer: Mesa Intel UHD Graphics 630 (CFL GT2)
v: 4.6 Mesa 20.3.1 direct render: Yes
Audio:
Device-1: Intel Cannon Lake PCH cAVS vendor: Dell
driver: sof-audio-pci bus ID: 00:1f.3 chip ID: 8086:a348
Device-2: NVIDIA vendor: Dell driver: snd_hda_intel v: kernel
bus ID: 01:00.1 chip ID: 10de:10fa
Sound Server: ALSA v: k5.9.16-1-MANJARO
Network:
Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
vendor: Dell driver: r8169 v: kernel port: 3000 bus ID: 03:00.0
chip ID: 10ec:8168
IF: enp3s0 state: up speed: 1000 Mbps duplex: full mac:
Device-2: Qualcomm Atheros QCA9377 802.11ac Wireless Network Adapter
vendor: Dell driver: ath10k_pci v: kernel port: 3000 bus ID: 04:00.0
chip ID: 168c:0042
IF: wlp4s0 state: down mac:
Device-3: Qualcomm Atheros type: USB driver: btusb bus ID: 1-14:6
chip ID: 0cf3:e009
Drives:
Local Storage: total: 1.38 TiB used: 8.1 GiB (0.6%)
ID-1: /dev/nvme0n1 model: PC SN520 NVMe WDC 512GB size: 476.94 GiB
speed: 15.8 Gb/s lanes: 2 serial: rev: 20200012 temp: 44.9 C
ID-2: /dev/sda vendor: Seagate model: ST1000LM048-2E7172
size: 931.51 GiB speed: 6.0 Gb/s serial: rev: 0001
Partition:
ID-1: / size: 160.56 GiB used: 7.84 GiB (4.9%) fs: ext4
dev: /dev/nvme0n1p8
ID-2: /boot/efi size: 646 MiB used: 259.6 MiB (40.2%) fs: vfat
dev: /dev/nvme0n1p1
Swap:
Alert: No Swap data was found.
Sensors:
System Temperatures: cpu: 63.0 C mobo: N/A gpu: nouveau temp: 41.0 C
Fan Speeds (RPM): N/A
Info:
Processes: 234 Uptime: 12m wakeups: 227 Init: systemd v: 247
Compilers: gcc: N/A Packages: pacman: 1223 Shell: Bash v: 5.1.0
running in: konsole inxi: 3.2.01
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Resuelto, cambie de kernel 5.9 a 5.4 y eso soluciono el problema, el ausnto es que me deja mal sabor de boca por que entonces no podre usar kernels mas nuevos.

mas nuevo no siempre significa mejor.
el kernel contiene drivers, lo que significa que el 5.4 es el adecuado para tu equipo,
esto no significa que seas vulnerable encuanto a seguridad ni que las cosas te vayan peor.
solo que ese el indicado para ti en este momento.
quiza tengas mas suerte con 5.10

nota:

  • siempre que tengas problemas de hardware intenta cambiar de kernel