mwave-modem surviving apm-suspend was: [ltp] No Sound from M

[linux-thinkpad@www.bm-soft.com]

On 14-Jan-01 Thomas Wimmer wrote:
> Till.Straumann@tu-berlin.de wrote:
> 
> (...)
> 
>> I made the observation that after using a PCMCIA modem
>> which has working sound, the mwave driver was also audible.
>> 
>> Therefore I assume that it is a initialization problem in
>> their driver.
>> 
>> Once sound is working, the initialization even survives APM
>> suspend...
> 
> can you clarify a bit?
> 

Yes, I'm sorry, what I meant was that "switching the sound on"
apparently survives a suspend/resume cycle. The mwavedd/mwavem
driver itself does _not_.

I.e. after performing the following steps:

   - switch loudspeaker on: hit <Fn>-<PgUp>

   - play with PCMCIA modem to produce audible sounds
  
   - eject PCMCIA modem.

   - load and use ACP driver; it now generates sound.

   - unload ACP driver

   - suspend machine

   - resume machine

   - reload/restart ACP driver

   - use ACP driver -> it still produces sound

it is (at least on my setup) possible to hear the ACP
modem. I do not have to re-use the PCMCIA modem after
resuming the machine (TP600E, 2645-550)

 
> I do start the modem the following way (not very
> sophisticated):
> ----- mwave start script ---------
>       /sbin/insmod -f mwavedd uartirq=3
>       /usr/local/bin/mwavem &
>       /sbin/setserial /dev/ttyS1 irq 3 autoconfig
> ----- mwave start script ---------
> 
> it works, but after resuming a suspend I can't get the modem
> working.
> 
> does anyone have a solution to this?
> 
>> Till.
> 
> 
> Thomas
> -- 
> Thomas Wimmer       |  Landing Instructions Made Easy:
> thomas@wimmer.net   |  "fly towards the ground until you're
> Wiesloch, Germany   |   not in the sky anymore."
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