At Mon, 4 May 2009 20:21:24 -0400, Ryan Dunn wrote: > > Thanks Takashi, I appreciate your help so far. I would normally agree with > you that it is a BIOS issue, however, the machine is a dualboot with WinXP, > where the mute LED works properly after a resume. Do you have any other > suggestions on where the issue may be? I hate to keep bugging the list for > such a small issue, but I'm not familiar with the code at all. When I get > more free time, I'll try to trace through the resume path to see if I can find > anything. How does the driver actually toggle the LED? Is the register a > physical register on the card that the hardware reads? Or does the code do > something else to toggle the LED? To be sure, you can toggle the bit of register 0x26 manually by writing the proc file. If it doesn't work, it's a BIOS issue indeed. However, there might be some fix / workaround in the suspend part. So, after confirming that the register change doesn't work, report it on either LKML or kernel bugzilla. Takashi > > Ryan > > On Mon, May 4, 2009 at 3:02 AM, Takashi Iwai <tiwai@xxxxxxx> wrote: > > At Thu, 30 Apr 2009 22:24:35 -0400, > Ryan Dunn wrote: > > > > I apologize for the list spam. I didn't realize that this bit is only > set > > when the led is on. So with that here are diffs of the regs with and > without > > mute enabled, before and after suspend. > > Before suspend: > > diff regs_w-quirk.txt regs_w-quirk+mute.txt > > 2c2 > > < 0:02 = 1e1e > > --- > > > 0:02 = 9e1e > > 20c20 > > < 0:26 = 000f > > --- > > > 0:26 = 800f > > > > After resume: > > diff regs_w-quirk_after_resume.txt regs_w-quirk_after_resume+mute.txt > > 2c2 > > < 0:02 = 1e1e > > --- > > > 0:02 = 9e1e > > 20c20 > > < 0:26 = 000f > > --- > > > 0:26 = 800f > > > > So it looks as if the registers are all ok after a resume, but the LED > doesn't > > turn back on. > > Then I'd say it's rather a BIOS problem. > > Takashi > > _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
