Public bug reported:
Hardware: Gfast N14-5 laptop (distributed in Argentina).
OS: Ubuntu (latest)
Issue: The internal speakers produce no sound. However, if I plug
headphones into the 3.5mm audio jack, the sound works perfectly through
the headphones.
Note: The internal speakers work perfectly fine when booting into
Windows, so it is not a hardware defect. It appears to be an ALSA pin
mapping/routing issue specific to this generic motherboard.
The ubuntu-bug tool should have automatically attached my hardware info.
Please let me know if you need me to run alsa-info.sh or provide any
specific logs.
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: alsa-base 1.0.25+dfsg-0ubuntu9
ProcVersionSignature: Ubuntu 7.0.0-22.22-generic 7.0.0
Uname: Linux 7.0.0-22-generic x86_64
ApportVersion: 2.34.0-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Mon Jun 8 12:35:43 2026
InstallationDate: Installed on 2026-06-05 (3 days ago)
InstallationMedia: Ubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423.1)
MachineType: Gfast N-14U5
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/16/2024
dmi.bios.release: 5.32
dmi.bios.vendor: American Megatrends International, LLC.
dmi.bios.version: BM_BI_MTL326_189A_Y
dmi.board.asset.tag: Default string
dmi.board.name: N-14U5
dmi.board.vendor: Gfast
dmi.board.version: Default string
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 10
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.ec.firmware.release: 1.5
dmi.modalias:
dmi:bvnAmericanMegatrendsInternational,LLC.:bvrBM_BI_MTL326_189A_Y:bd12/16/2024:br5.32:efr1.5:svnGfast:pnN-14U5:pvrDefaultstring:rvnGfast:rnN-14U5:rvrDefaultstring:cvnDefaultstring:ct10:cvrDefaultstring:skuNBMI516GS400W11:pfaNotebook:
dmi.product.family: Notebook
dmi.product.name: N-14U5
dmi.product.sku: NBMI516GS400W11
dmi.product.version: Default string
dmi.sys.vendor: Gfast
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
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https://bugs.launchpad.net/bugs/2155925
Title:
No sound from internal speakers on Gfast N14-5 (Headphones work)
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