Help me, pretty please.

Today I tried to record something with my webcam and this is what I'm getting. Can someone please tell me how to solve the errors?

https://www.youtube.com/watch?v=5fmnaA1IoEI

Thank you!

These are USB transmission errors (recoverable and unrecoverable). Disabling battery polling should help somewhat. Disabling WiFi and adjusting the Nvidia driver settings may help further.

On a correctly working system your error counter should show 0/0.

Obviously your USB is not working as it should. And also obviously there can be a million reasons why this happens. Computer hardware, computer settings, computer software, USB cable, power supply needed for the BF...sorry, but that can not be solved from a distance.

The nVidia problem has been discussed several times in this forum, a longer time ago. Please search. I also did not see you mention that you have set the Windows power scheme to 'High Performance'.

Basically it all comes down to that your notebook seems to have all the errors from former generations that should not be there these days any longer.

The Windows ACPI control driver only checks battery load (every 15 seconds), it doesn't control it. The laptop hardware does that by itself, else you couldn't load the battery while the laptop is off.

@ MC -  My Windows power scheme is and always was set to 'High Performance'.

@ georgob - I don't have the Nvidia Powermizer Manager on my computer. My GPU is Geforce 425M. Should I download the Nvidia Powermizer Manager, install it and optimize it? I would think that since it's not installed all the battery functions are off by default?

Thank you all for help!

Could you please help me about the Nvidia thing? Thank you.

Did you try uninstalling the NVidia drivers and use the ones that come with Windows 7 (older generation drivers)? Are you using current ones from NVidia's web-site or the ones coming with the laptop? I'd try all three of these.

Next thing to try:

Nvidia Control Panel -> Manage 3D settings -> Global (or specific for your daw application) -> Power Management Mode -> change from Adaptive to "Prefer Maximum Performance".

Usually this only works for 3D applications, so likely won't help with 2D DAW software.

Powermizer Manager is old software that might not help anymore. But it's worth giving it a try. The one linked to in the following forum seems free of viruses: http://forum.notebookreview.com/gateway … nager.html

Going back to an older driver can help very much in this case. Back when I used an NVidia based Macbook Pro with Windows the only NVidia driver that did not suffer from Powermizer issues was an older one offered from Microsoft's own driver catalog website.

The Powermizer only messes with Registry settings used by the NVidia driver. It can also backup and restore the settings and a driver reinstallation likely restores them anyway. Back then I also found one registry hack that would work, but I don't know if I can find that again (I found it by comparing the Microsoft catalog driver with the others). Once Powermizer Manager was available I just used that.

Hello again!

I'm thinking of installing Windows 8.1 alongside my Windows 7 OS - dual boot - so I can safely troubleshoot this latency problem.

I would take 60 GB from my HDD and dedicate it for the Windows 8.1 installation where I would then test the Babyface, DAW etc.

I would use a program called Autoruns to completely disable the problematic Nvidia driver (nvlddmkm.sys) that's causing latency and see if that helps (or completely breaks the system).

What do you guys think?

Just go ahead and try. There is no crystal ball which tells the results upfront.
I would also try a new installation of Windows 7 with only the really required drivers and not too much on top.
Directly after Windows installation and activation I would make a disk image that you have this as a good starting
point should something go wrong (i.e. by using Acronis True Image Home 2014).
I would then make a latency mon test directly after windows installation and then before each new driver installation.
I would also configure the system to allow for recovery points and set one before installing a new driver component.
Shall you see with latencymon that something makes it really worse, you can easily go back.
In terms of Latencymon. For Windows 7 better use the older version 4.02, which gives better results in terms of kernel latency. Version 6 got changes for Windows 8. Although you can re-enable the kernel latencies it shows strangs results.
If you do not get the old version from their web site, then you can grab it from my dropbox.
https://dl.dropboxusercontent.com/u/961 … n-4.02.exe
https://dl.dropboxusercontent.com/u/961 … 02.exe.md5

Hi again!

After replacing LatencyMon 6.0 with 4.02 on my Windows 7 x64 the results seem even worse (sorry for the large screenshot):

It shows that one of the problems is nvlddmkm.sys but there seem to be even worse problems - I can't tell what exactly though?

How can I tell if I have IRQ conflicts? I have already disabled all the hardware that I don't use in the Device Manager (including the wireless card).

And yes, I like Lenovos a lot but I have already bough this VAIO (which was expensive and it otherwise a good laptop) and I will have to stick with it and find a way to make it usable for audio production. I have recorded and produced quite some music on it already with RME Babyface. But in the later months I am getting a lot of errors and I always had problems with crackling etc. in the DAW.

So, wait, when you changed the MOBO model (a similar model that is) your latency went down from 60-100 to 1,5-10? That's amazing. You didn't do anything else that could change the latency? Why did you change the MOBO? Is it a different chipset or what is the change that lessens the latency?

On my laptop the only settings that I can change in the BIOS are Time & Date, Boot Order, Intel Vanderpool On/Off and C3/C6 CPU State On/Off. I tried both settings for the C3/C6 but it didn't affect the latency, only the CPU was hotter when if was set to off.

In the future I will buy a desktop and connect the Babyface to it but for now I have to fix the VAIO so that the errors go away and latency decreases. There were no errors a year ago or so, I don't know what happened.

Thank you for your help!

PS: What is the kernel timer latency exactly? It's really high in my LatencyMon resoluts. How can I go about fixing it?

Yesterday I letf the LatencyMon running for an hour and it showed no excessive latency (all under 1000). It has it times or so it seems, weird...

You already reported the culprit as being the NVidia drivers.

First thing to try is: Powermizer Manager

http://nvidia-powermizer-manager.software.informer.com/

If that doesn't help then try what I suggested in 2011:

Also try different values, 40 might be good. And be aware that your GPU fan might be running all the time as the GPU might get hot.

Last, but not least, you could try to find a 261.28 Quadro driver and hack its inf file to install it on your system. But that needs a bit more work and insight.

The entry changes how the driver controls the GPU power states. Since this is what causes your DPCs (GPU sleeps too long) the only way to get rid of it is to find a better working driver, change how GPU power saving works (registry entry) or turn off power saving completely.

Try it, monitor your temperatures via GPUZ or similar software and see if it helps. If not then you need another computer.