Date: Sun, 23 Oct 2005 14:32:21 +0900 From: Eric Kjeldergaard <kjelderg@gmail.com> To: freebsd-acpi@freebsd.org Subject: Fwd: Audio problem after resume fixed! Message-ID: <d9175cad0510222232l5cf185a3k@mail.gmail.com> In-Reply-To: <d9175cad0510222230i2b59cc30t@mail.gmail.com> References: <20051022222527.45DF55D09@ptavv.es.net> <d9175cad0510222230i2b59cc30t@mail.gmail.com>
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On 23/10/05, Kevin Oberman <oberman@es.net> wrote: > Since back before FreeBSD 5.0 I have had a problem where my audio lost > sync after a suspend/resume when ACPI was used on my ThinkPad T30. (No > problems with APM, last I tried it.) As a result, I have not used > suspend on my laptop very much. > > Every now and then, when I see commits that appear relevant, I try > again, and one minute of audio will play in 50 seconds, not sounding too > good while it is at it. > > Well, as of about 2 weeks ago, it works! I can now suspend and resume > and everything seems to work. I can't say for sure, but I think imp's > recent power state work is responsible. I know it worked VERY briefly > when he did his first commit of power state code long ago, but after > fixing lots of problems the original code caused, it never worked > again. > > As of today I can suspend in either text or X11 and resume works. The > only MINOR issue is that the video does not come back on when I resume > in X11. I just switch to a vty until the back-light comes on and then go > back to X. > > I still see rather high power consumption while suspended and I intend > to play with power states to see if I can improve the situation. I also > need to get radeontool. > > In any case, thanks to imp, Nate, Bruno, and all the folks who have made > a mammoth contribution of time to make ACPI work well on FreeBSD. > -- > R. Kevin Oberman, Network Engineer > Energy Sciences Network (ESnet) > Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) > E-mail: oberman@es.net Phone: +1 510 486-8634 > _______________________________________________ > freebsd-acpi@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-acpi > To unsubscribe, send any mail to "freebsd-acpi-unsubscribe@freebsd.org" > A possible solution to the resuming video thing would be the suspend.vty_switch_enable or similar flag (I don't have access to my freebsd install for the moment, but `sysctl -d | grep switch` should give you the name. Also, for power consumption, you'll probably want to see if usb is getting shut down (try suspending with a usb device with a light or fan or something plugged in) and you might want to see if radeontool helps. http://www.init-main.com/radeontoolport.tar.gz (if you have a radeon of course ...) If you go exploring and find any secrets to thinkpad suspend power consumption, please share them on the -mobile or -acpi lists. -- If I write a signature, my emails will appear more personalised.
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