SOLVED_Y460p/Y560p Sound drop out once every 65 sec

[Zehnsteine]

Hi Arm,

please do simple troubleshooting to find out if issue is caused by Bios...

http://forums.lenovo.com/t5/IdeaPad-Y-U-V-and-Z-series/workaround-for-y460p-y560p-sound-stutter/m-p/...

Zehn

[diazman]

Thanks for the BIOS update link Zehn!. Its working great now.

[wasi123]

Finally the wait is over after many months. Lenovo listen to its customers. BIOS 3fcn22ww_64 works well on y460p no sound drop outs.

Thanks to lenovo n zehn

[Zehnsteine]

Hi all,

recently one IdeaPad Y560p owner had issues installing the new ver.22 BIOS file.

 http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS027524

Please keep in mind that flashing the BIOS is a risky operation,

I've followed these instructions to the letter... and have had no problems with version 22...

- charge battery fully, keep AC Adapter plugged in,
- go offline, switch off WiFi and Bluetooth,

- close all Applications,

- disable Anti-Virus and Firewall,

- disable Sleep and Hibernate

- shut down Y460p/Y560p,

- remove all external devices like USB, Mouse, Keyboard, ext. Monitor etc.

- start laptop,

- make sure all Applications are closed and  Anti-Virus is disabled,

- let laptop idle for approx 30 minutes,
- double-click  3FCN22WW64.exe to start BIOS installer, then just follow instructions,
- restart one more time, check if settings of new BIOS are same than old BIOS.

Please NOTE: ...If your machine does not run stable (occasional freeze etc. )

                              DO NOT try to flash the BIOS,

                               if something goes wrong flashing the BIOS, your machine may be ruined for good!

additional info...

http://forums.lenovo.com/t5/IdeaPad-Y-and-U-series-Laptops/Safer-way-to-flash-BIOS/ta-p/310830

http://www.biosflash.com/e/bios-update-howto.htm

Regards... Zehn

[Wrthlor]

Hi everyone.

I've recently found this post and discovered that I had somewhat "similar" problem that other users have had. 

I had bought this laptop around late summer 2011. Around 5-6 months ago, I encountered a problem that involved stuttering with the audio while using media. 

The problem itself in detail: Whenever I play something involving media [whether it be just audio (YouTube, Windows Media Player)or video (gaming, movies)], there is a random "stuttering" sound and during that stuttering, the computer freezes for the stuttering duration. Typically, the stuttering occurs for half a second, but there are some instances where it can go on for 1-3 seconds (usually gaming/high performance).

I have looked around the internet for a similar problem (didn't find this post until now) and there didn't seem to be any related problem. 

I've attempted with DPC Latency Checker. Instead of the 65 seconds, mine appears to be more eratic and random. Sometimes, red bars appear every 5 seconds or so. The pictures I am presenting are the screenshots of testing just recently. 

I had tried to disable and enable drivers in the Device Manager (following the information beneath the charts), only to find out that disabling the drivers did NOT impact any of latency. My graphics driver is from the AMD site and my audio drivers are from Lenovo download site. 

System info: 

Lenovo Y560P (no switchable graphics)

Windows 7 x64 Home Premium 

i7-2630QM @ 2.00 GHz

4.00 GB ddr3 

AMD Radeon HD 6570M/5700 Series

JBL Speakers

BIOS version: Lenovo 3FCN22WW 

[Zehnsteine]

Hi Wrthlor,

your Y560p stuttering issue is most probably not related to BIOS,

also DPC Latency peaks below 5000 micro seconds as in your screenshots (to many apps running!)

usually do not cause audio dropouts.

- recent YouTube video stutter is solved by updating Adobe Flash Player....

http://www.adobe.com/software/flash/about/

- freezing at high load, e.g. gaming is often caused by overheating...

see this 'overheating' thread...

http://forums.lenovo.com/t5/IdeaPad-Y-U-V-and-Z-series/Y560-overheating-and-shutting-down/m-p/677023

- check temperatures with free CPUID Hardware Monitor...

http://www.cpuid.com/softwares/hwmonitor.html

- if all the above fails to solve the issue, please follow troubleshooting procedure in this 'sound/audio crackle' thread...

http://forums.lenovo.com/t5/IdeaPad-Y-U-V-and-Z-series/Sound-Audio-buffer-issues-crackle-pops-broken...

keeping fingers crossed... Zehn

[logically07]

the souund stutter is still there while im playing crysis warhead my laptop was lenovo y460p, i already updated it to the latest bios version

[serkyov]

Hi 

i'm facing the same problem with the random sound stutter and like the most people here have tried everything , the latest bios update didn't work either ;( . BUT  there is a big BUT today i found where the problem is !!!!!!!!!!!!!!!!!!!!  the wireless !!!!!!!!!!!! unfortunately i'm still not sure if the problem is in my router or in the laptop wireless devices.  Just try this switch off your wireless button and connect your laptop to the router with a cable. For me it worked just fine the Latency checker couldn't find anything wrong, several youtube videos and game on for couple of hours nothing... So people try this and poste comment so we could help the lenovo guys to fixe the problem.

[serkyov]

sorry for spaming but it's for good trust me ;d what a day .... so i fixed it. It's the Atheros AR9285 Wireless Network Adapter that is responsible for this stuttering sound. For all how have the problem check in Device Manager which driver version you have (mine was 8.XXXXXX.XXX  something like that but that 8 is important). The fix is simple - just update the driver to 10.0.0.75  I''ve been testing it for several hours with many many youtube videos playing in the same time and the DPC Latency Checker did't find anything wrong more important NO STUTTERING SOUND. So if you suffer from suttering sound and the latest bios update haven't work for you , just check your wireless adapter model in Device Manager and write it in google. That's what i made and find that ,this Atheros AR9285 Wireless Network Adapter  works "great " not just for me but for thousands of people ))) With this new driver it works just fine ! Have a good time with this great lenovo machine.

[mlefroy]

Hi,

Still having issues with new bios and latest WLAN drivers. 

Screen open, music playing, internet active = all good

Screen closed, music playing, internet active = sound issues

Screen closed, music playing, wifi off = sound is fine

Any ideas?