DeviceOK
SearchDevice checks
Home / Models / Logitech G PRO X 2 LIGHTSPEED / no-sound-on-lightspeed

Model-specific diagnostic path

Logitech G PRO X 2 has no sound on LIGHTSPEED

PRO X 2 supports LIGHTSPEED, Bluetooth and 3.5 mm. If the drivers produce normal sound over 3.5 mm but LIGHTSPEED is silent, the receiver/output-routing/software path is more likely than dead headset speakers.

QUESTIONWhy does PRO X 2 work on 3.5 mm but not LIGHTSPEED?

Start with evidence

Run the tests that separate the likely branches

Headphone TestRun stereo channel and tone checks for headphones.
Run →
Left Right Speaker TestPlay left and right channel tones separately.
Run →
Left Right Channel Balance TestPlay the same reference tone separately through left and right channels so you can compare perceived level.
Run →

Decision table

What the observation changes

ObservationWhat it meansNext action
3.5 mm sound is normal; LIGHTSPEED silentAcoustic drivers are partly proven.Check receiver enumeration and select the PRO X 2 wireless output explicitly.
Bluetooth and LIGHTSPEED both fail but 3.5 mm worksWireless power/firmware/routing is higher priority.Charge, reset/re-pair and check Logitech software/support.
All three modes are silentA broader headset/output issue remains.Run another source and inspect headset controls.

Sequence

Work from reversible checks to escalation

  1. 01

    Test left/right audio at safe volume.

  2. 02

    Compare 3.5 mm, Bluetooth and LIGHTSPEED.

  3. 03

    Select the exact wireless output in OS/app.

  4. 04

    Reconnect receiver direct to host.

Likely areas

Keep these branches separate

Wrong OS outputLIGHTSPEED receiver/USBG HUB profileWireless pairingHeadset hardware

Repair boundary

When to stop changing settings

Use Logitech support if the wireless modes remain unavailable across known-good hosts while wired audio is proven.