Date: Thu, 24 Dec 2009 08:24:12 -0800 From: "Kevin Oberman" <oberman@es.net> To: ticso@cicely.de Cc: Gleb Kurtsou <gleb.kurtsou@gmail.com>, Doug Barton <dougb@freebsd.org>, "b. f." <bf1783@googlemail.com>, freebsd-current@freebsd.org Subject: Re: powerd and nvidia drivers not playing nicely together (Was: Re: Systems running hot?) Message-ID: <20091224162412.BA73A1CC0B@ptavv.es.net> In-Reply-To: Your message of "Thu, 24 Dec 2009 11:46:26 %2B0100." <20091224104625.GY2260@cicely7.cicely.de>
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> Date: Thu, 24 Dec 2009 11:46:26 +0100 > From: Bernd Walter <ticso@cicely7.cicely.de> > Sender: owner-freebsd-current@freebsd.org > > On Wed, Dec 23, 2009 at 04:44:35PM +0200, Gleb Kurtsou wrote: > > On (21/12/2009 19:18), Doug Barton wrote: > > > b. f. wrote: > > > > On 12/21/09, Doug Barton <dougb@freebsd.org> wrote: > > > >> b. f. wrote: > > > >>>> no X! So I think to myself, what else did I change last night.... oh > > > > > > > >>> acpi_perf? acpi_throttle? acpi_thermal? acpi_video? > > > >> I haven't done anything special with the acpi stuff. The only thing > > > >> that looks relevant from dmesg is: acpi_tz0: <Thermal Zone> on acpi0 > > > >> > > > > > > > > Yes, but which components show up in 'sysctl -a | grep -ie acpi' ? > > > > > > It's a long list, but here you go: > > > http://people.freebsd.org/~dougb/acpi-grep.txt > > > > > > >>> Which nvidia driver? > > > >> The latest. > > > > > > > > Which video card? > > > > > > nvidia0: <GeForce Go 7300> > > I had similar problems with GeForce 8400M. GPU temperature could get up > > to 100C in X, which increased CPU temperature in its turn. I use > > powerd, and had lockups with *_cx_lowest settings. I run amd64, i386 was > > just fine on the same notebook. > > It is not just nvidia. > I'm using two plain old PCI Matrox G400 and whenever I start X with > powerd enabled I have a full freeze within 24 hours. > It doesn't seem to be a problem to start powerd once X is runnning. > Maybe it is something like tuning some delay loop with reduced clock > rate, which then isn't long enough with increased speed. Quick question...are you using throttling/TCC? If so, either turn it off or limit how low it can run the CPU. When I was running throttling on systems with old Matrox and Radeon cards, they would freeze if the throttling went too low. As mav pointed out at http://wiki.freebsd.org/TuningPowerConsumption, TCC does little to conserve power and was not designed for that. TCC is Thermal Control Circuit and is designed to keep the CPU form over-temping. It works for this, but not power management. I'd love to see it off (for power management) by default. hint.p4tcc.0.disabled=1 hint.acpi_throttle.0.disabled=1 -- 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 Key fingerprint:059B 2DDF 031C 9BA3 14A4 EADA 927D EBB3 987B 3751
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