Delta Audiophile 2496 - Windows 7 RTM - *sometimes* no sound after sleep or hibernate

[yxcvyxcv]

Summary:
*Sometimes* the sound card just emits nothing after waking up from sleep or hibernation. No error is reported, everything seems to be fine and is stable: just no sound.

This is in about one third of the wake up cases. In all other cases there is no problem and everything works. In the quiet cases a reboot is necessary in order to get sound. Switching to sleep or hibernate, and wake up again, is no cure.

Interestingly, when I select to shutdown or reboot the computer, just before windows exits the "Windows Logoff" sound is being played! So, ironically, the sound hardware gets initialized correctly when Windows quits.

Trying to disable the card in the Device Manager is no cure, either, as it seems to require a reboot (and I really do not like to quit my sometimes extensive working sessions).

Operation System: Windows 7 RTM
CPU: Pentium Dual-Core E6300 2.8 GHz
RAM: 4GB
File formats issue occurs with: -
Application Build [version]: (from the about box) -
Driver Build: 5.10.0.5074 / Install M-Audio Delta 6.0.2.zip
Steps to Recreate:
1. select sleep or hibernate
2. wake the computer up again
3. try to play something

RESULT:
no sound in about one third of all cases

NOTE:
I've read the knowledge base article "M-Audio does not support sleep mode with any of its devices" but I just can't really believe it. Does it really mean no sleep or hibernation for *all* M-Audio devices? Even this PCI card not only the external firewire stuff etc? Sorry, to ask, if that's really the case, but I'm just flabergasted. I didn't think that such hardware existed *and* it is the desired behaviour, in 2009! Sleep mode is something that I use for many years now, even under Linux, and I cannot understand how someone would want to spend the time to boot up a computer and recreate the working session every day. I usually have working session that go on for weeks; rebooting is something extraordinary.

Well, it seems to work in 2/3 of all cases so there seems to have been someone at your company who invested time to get it almost working. That looks primising. Is this something that will work in the near future with the final driver? That'd be great.

[memolipd]

have exactly the same problem.

completely agree with the note u mention - thats a bit made for M-Audio to take that stance.

[donpipo]

Hi guys,
I think that M-Audio integrated into the beta driver the fixes we were using until this new driver was released.

My personal opinion is that I was indeed a must-have since without the fix any sleep/suspend/shutdown attempt was resulting in a BSOD!

Audio services are indeed stopped before sleep/suspend/shutdown, so no BSOD at all. That's great.
Unfortunately, as yxcvyxcv stated, audio services are not (always) restarted when resuming. Like if the driver was not "catching" the resume state?
M-audio tech guys, can you confirm this?

The issue is displayed in the taskbar by the red-crossed speaker.

There are two solutions:
-Double-click the red-crossed speaker so that Windows solves the problem by itself.
-Continue using the sleep/hibernate fix I provided, as it always restarts audio services upon computer wake-up.

Thanks M-Audio, there's good progress with the driver. I hope the final one will be perfect.
Note to users: this is still a BETA driver!

Cheers,
Alex.

[chaitu22]

Hey Thank You very very much for the Windows 7 Delta Drivers...Tcr...!

[memolipd]

I dont get a speaker with a red cross through it, I just get no sound.

I have found a work around to get the sound back, the problem is you have to do it every time the sound stops working.

in windows 7 64bit;

--> Right click speaker icon
--> Click playback devices
--> Double click S/PDIF
--> Supported formats tab
--> Click on the word "44.1 kHz" to select it (not the checkbox, the word itself)
--> click Test
--> you then get a warning box that something is using the device and do u wish to close that application
--> click YES and dada! the sound is back.

hopefully this will shed a bit of light on the situation, it appears that a program running before you hibernate steals control of the audio card.

sort it out M-AUDIO!

[PhoenixGTR]

donpipo...does that mean the beta driver installs OK without the shutdown fix applied first? I had applied the shutdown fix automatically just from past experience...

[donpipo]

Yes, it does!
After a fresh install of Windows 7 RC and the 6.0.2 driver, the problem hasn't appeared again yet. So no need for the fix!