[Bugme-new] [Bug 16540] New: opl3sa2 sound fails after suspend/resume or rmmod/insmod on toshiba libretto 110 ct

bugzilla-daemon at bugzilla.kernel.org bugzilla-daemon at bugzilla.kernel.org
Sat Aug 7 15:21:23 PDT 2010


https://bugzilla.kernel.org/show_bug.cgi?id=16540

           Summary: opl3sa2 sound fails after suspend/resume or
                    rmmod/insmod on toshiba libretto 110 ct
           Product: Drivers
           Version: 2.5
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Sound(ALSA)
        AssignedTo: perex at perex.cz
        ReportedBy: friedel at nomaden.org
        Regression: No


I filed this bug against the debian kernel package a while ago:

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=531090

Things have changed a bit since then.

It seems to depend on the kind of suspend resume mechanism I use, if I can use
the soundcard after resume or not. With s2disk/uswsusp it won't work at all,
with BIOS suspend/resume (hibernate), I can unload/reload the snd modules to
get sound.

In any case, directly after resume any application accessing the sound devices
will hang, but is killable with SIGKILL (so it's probably not IO-wait, unless
things have changed since I last had an application in uninterruptible sleep).

There's more, hopefully relevant, information in the debian bug.

I'd be willing, if necessary, to try with a vanilla kernel.

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