Hi Jon, Sorry to put you through this trouble but, as Sven is pointing out, the problem isn't that we're trying to mess around with the GPU clock speed for performance reasons or anything. We just want powerplay to work on our C2D MBPs because they seem to burn much more power than C1D MBPs and one of the main differences seems to be lack of powerplay support. I noticed your power consumption of 33-34 watts. I found it hard to get Linux to go much below 27 watts even when I turn off everything I can. On a C1D MBP on the other hand people report going as low as 18-20 watts and in OS X you can get something more like 15 watts. This problem is so annoying that I'm not really using Linux much on my machine (because I don't want the fans running at 4k all the time). I would even be happy just manually underclocking my GPU in windows which is why I asked about the reboot thing.
I got on the forums on phoronix (www.phoronix.com) and asked Michael Larabel, who seems to have some access to the AMD developers, if he could get them to look into it. He got back to me and said that the problem was a bios problem on our machines and so AMD could do nothing about it. If you could show that things work perfectly well in Windows on the same machine then, as Sven said, the issue would then clearly reside in the Linux drivers rather than the MBP C2D bios. If this is so I'll go back to Michael and try to get him to point this out to them: http://www.phoronix.net/forums/showthread.php?t=3130&page=2 many thanks, Sheer p.s. I've also sent an email to the develper of the Omega drivers to see if he can offer any suggstions. Do you know how come he/she was able to develop a (better) ATI driver while Linux coders have to struggle to reverse engineer it -- does he/she have an NDA? On 6/13/07, Sven Anders <[EMAIL PROTECTED]> wrote: > Jon Grosshart schrieb: > > > It reports the same BIOS clock speeds that ATI Tray Tools did.. Sorry, > > but I still don't know what you guys are after. You say the Linux > > version is bugged.. How? > > > What does "The Linux driver is bugging and not the BIOS" mean? > > What does "Our problem is, that the aticonfig tool does > > not work together with the MBP 2,2 ATI VGA BIOS." mean? > > We do not know, if the problem, that we cannot change the PowerPlay > settings with the Linux Tool (aticonfig --lsp) are a problem of the > BIOS or the driver/tool itself. > > The linux Xorg flgrx driver must provide functions to set PowerPlay, > but the driver does this only, if there is special support from the > VGA BIOS. > > On a MacBook Pro Core1Duo (first generation) the tool works. > I have access to HP with a Core2Duo and X1600 and it works there too. > > The Mac is in one way special. The VGA BIOS is part of the legacy > (emulation) framework of EFI and so there maybe a problem with the > way the VGA BIOS is accessed. But if it work under Windows (which > will use the legacy VGA BIOS too), it's a problem of Linux driver. > > > It would be nice, if you can confirm, that your are able to change the > PowerPlay settings (i.e. underclock the chip) with the Windows CCC > tool on a MacBook Pro Core2Duo... > This would prove, that the only problem lies in the ATI Linux driver. > > Regards > Sven > > -- > Sven Anders <[EMAIL PROTECTED]> () Ascii Ribbon Campaign > /\ Support plain text e-mail > ANDURAS service solutions AG > Innstraße 71 - 94036 Passau - Germany > Web: www.anduras.de - Tel: +49 (0)851-4 90 50-0 - Fax: +49 (0)851-4 90 50-55 > > Rechtsform: Aktiengesellschaft - Sitz: Passau - Amtsgericht Passau HRB 6032 > Mitglieder des Vorstands: Sven Anders, Marcus Junker > Vorsitzender des Aufsichtsrats: Dipl. Kfm. Thomas Träger > > ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Mactel-linux-users mailing list Mactel-linux-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mactel-linux-users
