Public bug reported:
Hardware:
Acer Predator PH315-54
Board: QX60_TLS
BIOS: V1.15
Ubuntu 26.04 LTS
Kernel: 7.0.0-29-generic
The physical Turbo button does not enable Turbo mode and its LED remains
off.
acer_wmi loads correctly and the Acer WMI hotkey device is present.
Using a kprobe on the compiled acer_toggle_turbo.isra.0 symbol, every
physical press of the Turbo button reaches acer_toggle_turbo(). In one
test, 11 button presses produced exactly 11 kprobe hits with zero
misses.
The acer-wmi.ko shipped with this kernel contains:
Acer Predator PH315-53
quirk_acer_predator_ph315_53
but no PH315-54 DMI entry.
The existing PH315-53 quirk enables:
.turbo = 1
.cpu_fans = 1
.gpu_fans = 1
This suggests that Predator PH315-54 may be missing an appropriate DMI
quirk in acer-wmi.
I have also reported this upstream to the platform-driver-x86 mailing
list.
I have not loaded or tested a modified acer_wmi module, so I am
reporting this as a possible missing model quirk rather than claiming
that reusing the PH315-53 quirk is proven safe.
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: linux-image-7.0.0-29-generic 7.0.0-29.29
ProcVersionSignature: Ubuntu 7.0.0-29.29-generic 7.0.12
Uname: Linux 7.0.0-29-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: dallo 4810 F.... wireplumber
/dev/snd/controlC0: dallo 4810 F.... wireplumber
/dev/snd/seq: dallo 4790 F.... pipewire
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Sun Aug 23 12:46:46 2026
InstallationDate: Installed on 2026-08-13 (10 days ago)
InstallationMedia: Ubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423.1)
MachineType: Acer Predator PH315-54
ProcFB:
0 i915drmfb
1 nvidia-drmdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-29-generic
root=UUID=cd467fcf-cd2c-4588-a10a-f39ded0bf54c ro quiet splash
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
RebootRequiredPkgs: Error: path contained symlinks.
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/29/2023
dmi.bios.release: 1.15
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: V1.15
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: QX60_TLS
dmi.board.vendor: TGL
dmi.board.version: V1.15
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.15
dmi.ec.firmware.release: 1.9
dmi.modalias:
dmi:bvnInsydeCorp.:bvrV1.15:bd06/29/2023:br1.15:efr1.9:svnAcer:pnPredatorPH315-54:pvrV1.15:rvnTGL:rnQX60_TLS:rvrV1.15:cvnAcer:ct10:cvrV1.15:sku0000000000000000:pfaPredatorHelios300:
dmi.product.family: Predator Helios 300
dmi.product.name: Predator PH315-54
dmi.product.sku: 0000000000000000
dmi.product.version: V1.15
dmi.sys.vendor: Acer
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
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https://bugs.launchpad.net/bugs/2164843
Title:
acer-wmi: Predator PH315-54 Turbo button reaches acer_toggle_turbo but
model lacks PH315-54 DMI quirk
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