08-07-2011 08:44 AM
So, I went to lenovo center this morning and left my laptop so they could diagnose my y460p. but it's strange, it seems that the problem i posted above did not show up. They restored/re-installed the system files and ran tests from about 2pm-8pm. They told me that everything seems to be ok. So, I took my laptop home. When I got home the first thing i did was opened the laptop and connected it to wifi and played the sample song from the music library, and to my surprise, the problem still exists..
08-28-2011 08:07 AM - edited 08-29-2011 07:55 AM
Ideapad Y560p, i7-2630QM, AMD Radeon HD 6570M, Win7-64
Once every 65 seconds I can hear one single very short Sound drop-out (stutter, cracking noise)
while playing Audio,
at the same time there is a 18 ms full scale latency peak visible in DPC Latency Checker.
Sound dropout can also be seen in the Waterfall display of MixW communications software.
I found two workarounds to play audio smoothly:
1.. remove the Battery Pack while the Y560p is on Mains-power,
2.. disable "Microsoft ACPI-Compliant Control Method Battery" in Device Manager,
with Battery Pack connected, either on Mains or Battery power.
This is like using a Crutch, any Ideas ?
09-09-2011 05:41 AM - edited 09-10-2011 02:12 AM
Hi... I've uploaded some screenshots to show the Y560p sound dropout problem more clearly,
pic 1... Y560p with Battery connected, sound dropout with Battery or Mains-Power,
pic 2... Y560p with Battery removed,
Battery connected and " Microsoft ACPI-Compliant Control Method Battery "
disabled in Device Manager,
no more Audio problems... but... no Battery Charge Indicator with this workaround,
pic 3... sound dropout in MixW Waterfall Display.
I called Lenovo Tech Support and they concluded that the Battery Pack need to get replaced.
Unfortunately according to Tech Support the Battery is not a " Customer Replaceable Unit ",
under warranty it can only be replaced by Lenovo Service Center in Bangkok.
Since I'm located upcountry, this means a full day of travel into Bangkok and back home... "grumble".
Dear Experts... any suggestions or opinions ?
I'll keep you updated... Zehn
09-13-2011 03:19 PM
I am encountering the same problem on a Y460p. I have attempted to uninstall and reinstall the windows drivers, and then the Lenovo provided drivers, and neither made a difference. It also seems to work fine if I remove my battery.
Has this been solved?
09-15-2011 03:54 AM
Nothing new. I've allready wrote to main people in my country & to some in region, and I think it also went to the some of the Lenovo (leading) people in Europe. Same problem all the time... Nothing works out but taking the battery off. I think thay can solve it with another updated bios, but on the other hand mayby it's hardware (chipset) problem, so they don't want to talk about it because they will have BIG problem, then me & You would ask for another (newer) model for replacement of existing. I think that would be only RIGHT move from Lenovo. And btw, there is new one (replacement) for Y560p (i7 sandybridge) mark is: Y570 (i7 sandybridge, .... changed only graphic card - nVidia & alu design). I'm waiting for Y570 to test it, so I will write if the problem persist there too.
09-16-2011 05:31 AM - edited 09-23-2011 10:03 PM
my Y560p Sound/Audio dropout Problem solved !!!!
Today, Lenovo Tech Support Thailand called me and ask to install a new BIOS version
via Remote Access (via Internet) on my machine...
old BIOS was ver. 3FCN19WW
new BIOS now is ver. 3FCN17WW64
seen by the version number only, this looks like an older previous version of BIOS,
but it solved my sound dropout problem completely... So I'm happy now !
I suggest you may call Tech Support and ask them to remotely flash your BIOS with the new version,
NOTE... the new BIOS is not yet available on Lenovos Driver Download site.
BTW, no need to replace the Battery Pack.
Kudos to friendly, fast and competent Lenovo Tech Support in Thailand !!
Regards.... Happy Zehn
sorry, I dont know how to mark a thread as solved.
10-03-2011 07:12 PM
I am having a problem that sounds just about the same as what was here. Except I am getting the drop out with a USB audio device (Line6 Pod X3 Live). I am in the middle of reloading a fresh copy of windows and ended up on this thread because of a search on a driver for "base system device". The only thing is, I have never had a problem with the on board sound device or even using Asio4all. I wonder if this new bios would help me? Are there plans to release this to the public soon? It is frustrating as I do a lot of audio recording and mixing and I bought this specifically so I could take it on the road.
10-03-2011 08:19 PM
Ok, so I tested the removing the battery thing and no more audio dropouts! So atleast I narrowed it down! Souns like I need this 3FCN17WW64 bios verion or at the very least an updated one. I cant believe they havent put out a new bios in nearly 10 months!
10-03-2011 10:12 PM - edited 10-08-2011 12:49 AM
my sound drop out problem was with on-board-sound...
troubleshoot by removing the Battery Pack and use mains power only,
if audio plays smoothly then, the fix is a new BIOS.
But if your sound audio still stutters with battery removed, I fear you have a different problem...
you may try this:
go to the Device Manager -> Universal Serial Bus controllers and un-check
Allow the computer to turn off this device to save power under Power Management
for all USB Hubs.
also switch off WLAN with the little switch on front of laptop, then in Lenovo Energy Management
select High Performance, under Display and System tab set everything to Never
and Maximum CPU Speed to High.
Good Luck... Zehn