[ltp] Latest BIOS update on T41 running my fan faster

[obi]

On Thu, Jul 22, 2004 at 02:29:10PM -0400, Alex Deucher wrote:
> On Thu, 22 Jul 2004 10:09:40 -0700, obi <graziano@cs.ucsb.edu> wrote:
> > On Thu, Jul 22, 2004 at 08:58:15AM -0400, Alex Deucher wrote:
> > > On Wed, 21 Jul 2004 19:09:16 -0700, obi <graziano@cs.ucsb.edu> wrote:
> > > > On Wed, Jul 21, 2004 at 05:42:05PM -0400, Alex Deucher wrote:
> > > > > On Wed, 21 Jul 2004 23:20:44 +0200, Florian Knobloch <flokno@gmx.net> wrote:
> > > > > > hello alex!
> > > > > >
> > > > > >
> > > > > > > If you don't mind using the opensource radeon X server you might want
> > > > > > > to try my powerplay patch:
> > > > > > > http://www.botchco.com/alex/radeon/dynamicPM/hy0/radeon-pm.diff
> > > > > > > should help save battery and let your gfx chip run a bit cooler.
> > > > > >
> > > > > > do you know if you patch is applied to the code base of xfree or xorg?
> > > > >
> > > > > nope it hasn't been applied to either xorg or xfree.  you can try the
> > > > > binary I made here, YMMV (you may need a newer XFree86 binary if you
> > > > > are running 4.3.0):
> > > > > http://www.botchco.com/alex/radeon/dynamicPM/hy0/
> > > > > this XFree86 binary should be new enough:
> > > > > http://www.botchco.com/alex/radeon/mergedfb/cvs/DRI/final/XFree86
> > > > > backup your old ones first!!!!
> > > > >
> > > > > Alex
> > > >
> > > > Alex, first of all thanks for the patch! I couldn't get your
> > > > pre-compiled driver to work with my X (Debian sarge), so I ended up
> > > > recompiling it against the debian source (and producing debian packages
> > > > in case somebody is interested). your patch applied with a fuzz (I have
> > > > the corrected patch to drop into debian/patches) but everything
> > > > compiled.
> > > >
> > > > I got X running now and DynamicPM is enabled.
> > > >
> > >
> > > Awesome.  You may want to post your binary somewhere, I'm sure there
> > > are other interested parties here.  Also, I'd be very interested in
> > > getting some feedback on how the patch performs.  Mostly I've heard
> > > good things, but one ppc user reported performance degredation.
> > 
> > I mainly use vi(m), mutt, gcc and galeon, hence graphic performance
> > aren't that noticeable to me. But xengine reports to me about 4000 now
> > vs about 8000 without the patch. I don't think there is any loss for
> > glxgears. As a comparison the ATI driver I think gave somewhere around
> > 5~6000 and less in glxgears. If there is any more specific test you want
> > me to run, let me know. I have a T41 radeon 9000 with 32M.
> 
> hmmm... does it seem to increase battery life any?  does turning off
> the option restore performance?

The fan comes on much less than the normal ati driver. I'll do some
battery testing, but given that the fan doesn't come on (hence the GPU
isn't going full on) I'd expect to have better battery life. I'll try
again soon and I'll report with the option turned off/on the difference.

graziano


> > From a seat of the pants experience it seems that the fan is more active
> > with your patches then with the ATI driver. It comes up earlier and
> > stays up for longer.
> 
> to be honest I have no idea if the patch will affect the fan or not, I
> just assumed it might since theoretically the gfx chip is using less
> power.  Ati's driver does more stuff in HW, so it probably uses the
> CPU less than the DRI driver.  hence your experience.
> 
> Thanks,
> 
> Alex
> 
> > 
> > I'll post the radeon and ati modules somewhere next week.
> > 
> > thanks
> > graziano
> > 
> > 
> > 
> > 
> > >
> > > Thanks,
> > >
> > > Alex
> > >
> > > > graziano
> > > >
> > > > >
> > > > > >
> > > > > > --
> > > > > >
> > > > > > thanks,
> > > > > >   flo
> > > > > >
> > > > > >
> > > > > > --
> > > > > > The linux-thinkpad mailing list home page is at:
> > > > > > http://mailman.linux-thinkpad.org/mailman/listinfo/linux-thinkpad
> > > > > >
> > > > > --
> > > > > The linux-thinkpad mailing list home page is at:
> > > > > http://mailman.linux-thinkpad.org/mailman/listinfo/linux-thinkpad
> > > > >
> > > >
> > > > --
> > > > +-----------------------+--------------------------+
> > > > | Graziano Obertelli    | CS Dept. Rm 102          |
> > > > | graziano@cs.ucsb.edu  | University of California |
> > > > | (805) 893-5212        | Santa Barbara, CA 93106  |
> > > > +-----------------------+--------------------------+
> > > >
> > > >
> > > > --
> > > > The linux-thinkpad mailing list home page is at:
> > > > http://mailman.linux-thinkpad.org/mailman/listinfo/linux-thinkpad
> > > >
> > > --
> > > The linux-thinkpad mailing list home page is at:
> > > http://mailman.linux-thinkpad.org/mailman/listinfo/linux-thinkpad
> > >
> > 
> > --
> > +-----------------------+--------------------------+
> > | Graziano Obertelli    | CS Dept. Rm 102          |
> > | graziano@cs.ucsb.edu  | University of California |
> > | (805) 893-5212        | Santa Barbara, CA 93106  |
> > +-----------------------+--------------------------+
> > --
> > The linux-thinkpad mailing list home page is at:
> > http://mailman.linux-thinkpad.org/mailman/listinfo/linux-thinkpad
> >
> -- 
> The linux-thinkpad mailing list home page is at:
> http://mailman.linux-thinkpad.org/mailman/listinfo/linux-thinkpad
> 

-- 
+-----------------------+--------------------------+
| Graziano Obertelli    | CS Dept. Rm 102          |
| graziano@cs.ucsb.edu  | University of California |
| (805) 893-5212        | Santa Barbara, CA 93106  |
+-----------------------+--------------------------+