Printing, Personal Computing and Mobile Boards Migrating to HP Support Forums
Printing, Personal Computing and Mobile Boards Migrating to HP Support ForumsOpen Menu
Today we’ll be migrating all boards within the Printing and Digital Imaging, Desktops and Workstations, and Mobile categories to the HP Support Forums. Please see this post for full details on the migration, and how to get to your content.
I have gotten 4 of the SB bundled 8540w's with the docking stations and seem to be seeing an issue. I have update to the most recent bios that was post which was f.08 as well have updated all drivers. I don't think its a hardware issue totally but possibly might be.
All 4 of these suffer from stuttering sound. There isn't really anything installed on them except office 2010 and vmware 6.5 workstation and windows 7 x64. They were all installed fresh and not from some base image. On all laptops if you reboot the audio is fine but as the day wears on it will stutter. 2 laptops will stutter all audio all the time. the other 2 laptops only stutter low bitrate mpeg and mp3 audio.
I have plugged in a usb headset which adds its own soundcard driver and the problem carries over to that as well. So thats why I don't know if its really hardware related... I thought maybe a codec was causing the issue but there hasn't been any installed, so I tried klite codec pack on 1 and the fdshow tryout on another with the same results. But if i reboot its all good until a little later in the day. It's also totally random when it starts.
I found the problem to the audio stuttering which was causing the high latency. Intel(R) Management and Security Application User Notification Service - Updates the Windows Event Log with notifications of pre defined events received from the local Intel(R) Management and Security Application Device. if i disable the service the audio is fine. If i re-enable the service the problem re-appears. I think hp needs to log a bug with intel on it as well as putting it out there if others have a similar problem.
It may also be worth trying to disable the HP Power Assistant program from your list of running processes.