Audio on the Lenovo IdeaPad Slim 5 comes from stereo speakers tuned with Dolby support, a headphone and microphone combo jack and optional HDMI or Bluetooth output, and a laptop with no sound, a low sound or a crackle has a setting or a driver at fault much more often than a damaged speaker. Begin with the output. Click the speaker icon in the taskbar and make sure the device chosen is the laptop's speakers and not an HDMI monitor or a Bluetooth headset that you used earlier;
The checks in more detail
Windows often keeps the last device as the default. Check the volume, the mute key and the volume in the app. Run the Windows audio troubleshooter. Open Settings, System, Sound, choose the speakers and open their properties to look at Enhancements: turning off audio enhancements is the standard cure for crackle, distortion and a thin sound. In the advanced tab, try a different sample rate, such as 24 bit, 48000 Hz. If you have the Dolby Access app, set the profile to Dynamic or switch it off for a test.
Restart the audio service from Services, Windows Audio, or restart the laptop, which clears a stuck state after sleep. If the sound is missing only in the browser, check the tab is not muted and that the site's permission is not blocked. Then check the driver. In Device Manager, under Sound, video and game controllers, look for a mark on the audio device. Uninstall it and restart, so that Windows reinstalls the driver, or install the Realtek audio driver from Lenovo's support page for your model.
Update the BIOS through Lenovo Vantage or the support page, since audio problems are sometimes fixed there. Test with headphones to find out whether the speakers or the sound system are at fault; if headphones work and the speakers do not, a speaker or its connection may be damaged. A laptop on a soft surface may muffle its speakers, since the speakers fire from the bottom, so use it on a hard surface. If a crackle appears under load, change the power mode. When everything fails, contact Lenovo with the serial number.
Differential
Likely causes of “Lenovo IdeaPad Slim 5 family has no sound or distorted audio”, and how to tell them apart
- 1
The wrong default output
What separates it No sound from the speakers
How to confirm Choose the laptop speakers
- 2
Audio enhancements
What separates it Crackle or a thin sound
How to confirm Turn them off in the speaker properties
- 3
A driver issue
What separates it A mark in Device Manager
How to confirm Reinstall or update the audio driver
- 4
A soft surface
What separates it Muffled sound
How to confirm Use a hard surface
- 5
A hardware fault
What separates it Headphones work but the speakers do not
How to confirm Contact Lenovo
Before you touch a setting
Record this first — changing settings destroys the evidence
- The output device
- Whether headphones work
- The driver version
- Whether the sound crackles under load
Try in this order
0 of 6 completedChoose the right output
ReversibleSpeakers, not HDMI.
Turn off enhancements
ReversibleIn speaker properties.
Try another sample rate
ReversibleIn Advanced.
Reinstall the audio driver
ReversibleIn Device Manager.
Update the BIOS
ReversibleThrough Lenovo Vantage.
Test headphones
ReversibleTo judge the speakers.
Model-specific
What is true of this model and not of its siblings
- Default device
- Windows keeps the last device.
- Enhancements
- They often cause crackle.
Stop boundary
When this stops being a self-service repair
- !If headphones work and the speakers do not, contact Lenovo with the serial number
- !Update the BIOS and driver first
- !Test in two apps
Evidence ledger
Sources behind this answer
Exact questions
Common questions
Why is there no sound on my IdeaPad Slim 5?+
Often the wrong output device.
What causes crackle?+
Audio enhancements or latency.
Where are the speakers?+
On the bottom, so use a hard surface.
Do I need a new driver?+
Reinstalling often helps.