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Core 2 Duo Mobile T7400 CPU Scaling Not Working [Solved]
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jasn
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PostPosted: Sat Dec 16, 2006 1:17 am    Post subject: Re: Confirmation Reply with quote

alphamaennchen wrote:
I can confirm that issue with the BIOS.
I tried the downgrade to 203 myself today and CPU frequency scaling is working again with gentoo.
I can also confirm that it does not work with 204 and 207, although it works with Windows.
I think the bios 203 and before maybe show the Skaling as Core Duo and not Core 2 Duo? Because on 204 it says it adds support for merom...

I've got it working with both 203 an 204. You might want to try and reconfigure your kernel as I suggested above and see if it works with 204. Also, the Merom mention in the BIOS release note refers to a different model. Remember this laptop was released with Merom support.
alphamaennchen wrote:
jas, have you solved the sound issues or webcam with your aj8p?

For sound, configure alsa as a module, (not built into the kernel), emerge the latest alsa-driver, edit your /etc/modules.d/alsa file to include the following line;
Code:
options snd-hda-intel position_fix=1 model=3stack

For the webcam someone posting to the Linux USB device website states that the media-video/gspcav1 driver supports this model;
http://www.qbik.ch/usb/devices/showdev.php?id=3849
But the current rev media-video/gspcav1 drivers won't compile under 2.6.19, (the missing linux/config.h problem). So hopefully the next release will fix that. Good Luck..
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alphamaennchen
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Joined: 05 Sep 2005
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PostPosted: Sat Dec 16, 2006 3:46 pm    Post subject: Summary in this thread Reply with quote

Look here for a summary on Asus A8jp:
https://forums.gentoo.org/viewtopic-p-3787513.html#3787513
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linux is a wigwam: no windows, no gates, apache inside!

Desktop: AMD64 3400+, GeForce 7800GS, Gentoo
Notebook (Asus A8jp): Core 2 Duo 2,0 (T7200), ATI X1700, Kubuntu
PDA: Zaurus SL-6000

linux is user friendly! however, it is not idiot friendly....
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jasn
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PostPosted: Wed Dec 20, 2006 2:56 pm    Post subject: Reply with quote

If anyone is following this thread and is curious about A8Js Linux Speedstep support, there is a user over on the NBR forums who claims that the 2.6.20-r2 Linux kernel fully supports Speedstep with the latest BIOS. He's running an Ubuntu Feisty Fawn beta on his A8Js. If that's true then the speedstep-centrino module authors either patched around the BIOS, or fixed a bug in the module. Either way this is probably moot now and it makes Linux support of the A8Js very good. (I've got everything except the webcam operating well under Linux..)
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ShEvA!
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PostPosted: Wed Dec 27, 2006 10:25 am    Post subject: Reply with quote

Quote:
(I've got everything except the webcam operating well under Linux..)

I've got it working by manually installing the newest version of gspcav1, which can be found here:
http://mxhaard.free.fr/download.html
as suggested in this guide (very complete, btw):
http://www.rothlaender.net/a8js.htm

Also I can confirm the speedstep troubles (I'm running a gentoo-2.6.19-r2 kernel on a 207 BIOS), anyhow I think I'll stick with it and wait for the 2.6.20 release
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