realtek and dolby out of sync


C

Char Jackson

Incidentally, the latest Realtek driver according to Hardware Helper is
6.0.1.6649. The one I just downloaded from Realtek is 6.0.1.6662. Both
of these are about 50 mB.
The one on the Realtek site is 6.0.1.6554, and is over 100 mB, the
difference, presumably, being Dolby.
You still haven't ditched that silly Hardware Helper? What's taking so
long?

BTW, mB = millibytes, a unit of measurement not in common usage. You
probably mean MB (megabytes).

I guess I'm not being very helpful.
 
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P

Paul

Robin said:
Incidentally, the latest Realtek driver according to Hardware Helper is
6.0.1.6649. The one I just downloaded from Realtek is 6.0.1.6662. Both
of these are about 50 mB.
The one on the Realtek site is 6.0.1.6554, and is over 100 mB, the
difference, presumably, being Dolby.
Can the files be opened with 7-ZIP ?

http://en.wikipedia.org/wiki/7-zip

That's how I take various drivers apart, compare them, and so on.

Not all drivers can be disassembled easily. Some are Installshield,
with encrypted CABs inside. Others, they use a "packer", like UPX,
at the top level, and then 7-ZIP won't open them at all.

So actually being able to guarantee disassembly is pretty difficult.
Too many techniques to obscure them.

On occasion, I use WINE in a Linux virtual machine, to crack
open an installer. With less danger to my running Windows OS.
So that's another forensic technique that works sometimes.
I use that for webcam drivers from Chinese sites, the ones
where you wonder whether they're infected or not.

For dodgy sites, you can also upload the file to virustotal.com
and scan it there. I believe I had one Chinese webcam driver,
that "smelled bad".

I'd like to help you, but I really don't understand how the
software knows Dolby stuff is to be installed or not. I can't really
simulate that here.

Paul
 
D

Dave-UK

Paul said:
Can the files be opened with 7-ZIP ?
That's how I take various drivers apart, compare them, and so on.

Not all drivers can be disassembled easily. Some are Installshield,
with encrypted CABs inside. Others, they use a "packer", like UPX,
at the top level, and then 7-ZIP won't open them at all.

So actually being able to guarantee disassembly is pretty difficult.
Too many techniques to obscure them.

On occasion, I use WINE in a Linux virtual machine, to crack
open an installer. With less danger to my running Windows OS.
So that's another forensic technique that works sometimes.
I use that for webcam drivers from Chinese sites, the ones
where you wonder whether they're infected or not.

For dodgy sites, you can also upload the file to virustotal.com
and scan it there. I believe I had one Chinese webcam driver,
that "smelled bad".


Paul
I use Uniextract to unpack installers and other packed files:
http://legroom.net/software/uniextract/
And for Inno packed installers I use this Inno Setup Unpacker method:
http://sourceforge.net/projects/innounp/forums/forum/353235/topic/1122068
 
R

Robin Bignall

You still haven't ditched that silly Hardware Helper? What's taking so
long?

BTW, mB = millibytes, a unit of measurement not in common usage. You
probably mean MB (megabytes).

I guess I'm not being very helpful.
Not particularly, and HH has served me well enough for a couple of
years. This Dolby business and the licensing is a weird case.
 
R

Robin Bignall

Can the files be opened with 7-ZIP ?

http://en.wikipedia.org/wiki/7-zip
I noticed that the Gigabyte one used 7-Zip to unscramble itself. I
didn't see any unscrambling for the others. They all used InstallShield
in a two-step process:
uninstall the old
reboot
install the new
That's how I take various drivers apart, compare them, and so on.

Not all drivers can be disassembled easily. Some are Installshield,
with encrypted CABs inside. Others, they use a "packer", like UPX,
at the top level, and then 7-ZIP won't open them at all.

So actually being able to guarantee disassembly is pretty difficult.
Too many techniques to obscure them.

On occasion, I use WINE in a Linux virtual machine, to crack
open an installer. With less danger to my running Windows OS.
So that's another forensic technique that works sometimes.
I use that for webcam drivers from Chinese sites, the ones
where you wonder whether they're infected or not.

For dodgy sites, you can also upload the file to virustotal.com
and scan it there. I believe I had one Chinese webcam driver,
that "smelled bad".

I'd like to help you, but I really don't understand how the
software knows Dolby stuff is to be installed or not. I can't really
simulate that here.
The latest Gigabyte driver is working fine, except that Dolby doesn't
load automatically on booting. The rest of the technicalities are well
above my pay grade, but thanks for some great insight.
 
S

solver

Robin Bignall wrote on 06/27/2012 16:17 ET
I installed latest Realtek driver and now Dolby Home Theatre tells m
drivers do not match. Can't find any downloads on Dolby site, not an
mention of Dolby on motherboard driver disk. Any ideas
Robin Bignal
Herts, Englan
Hi, I don't know if it would solve the "out of sync" problem bescribe
in this topic, but I didn't see if anybody write about that the Dolby Hom
Theatre works just fine with newer Realtek drivers actually. I think that onl
interface is not working and gives that error about 7.2.7000 vs 7.2.8000

Try this
Go to Playback devices in Windows 7 Start->Control Panel -> Soun
Click RMB on Speakers or Digital Output (whatever you have) and than Propertie
At the top you should have Dolby tab where Dolby Home Theatre v4 interface is.
 
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R

Robin Bignall

Robin Bignall wrote on 06/27/2012 16:17 ET :
Hi, I don't know if it would solve the "out of sync" problem bescribed
in this topic, but I didn't see if anybody write about that the Dolby Home
Theatre works just fine with newer Realtek drivers actually. I think that only
interface is not working and gives that error about 7.2.7000 vs 7.2.8000.

Try this:
Go to Playback devices in Windows 7 Start->Control Panel -> Sound
Click RMB on Speakers or Digital Output (whatever you have) and than Properties
At the top you should have Dolby tab where Dolby Home Theatre v4 interface is.
Thanks for getting back to me on this. Following the instructions I get
"Current Dolby driver is 7.2.8000.13. Software application expects
7.2.7000.4"
Downloads of Realtek drivers from Realtek do not contain Dolby drivers,
AFAIK. I have a Gigabyte board, and downloading the Gigabyte sound
driver is supposed to consist of two drivers, Realtek and Dolby, that
install one after the other. The latest one I downloaded didn't. I
have all of the past Realtek drivers on disk and I suppose I could go
back through them until I found a match, but it's too much trouble. I
only have two desktop speakers.
 

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