Hello Thomas, Am Donnerstag, den 05.11.2009, 19:30 +0100 schrieb Thomas Jensen: > I've stumpled upon an alternative method to activating the Nvidia card, > which I would like to share with you. Maybe it can be used for creating > a better method of activating the card, than the current ones.
What 'current ones' do you mean? > > It happend when I was trying to install Mac OS X (Snow Leopard) on my > Vaio, using the Rebel EFI from Psystar.com. To install it, you have to > boot on a CD containing the Rebel EFI and then insert the Mac OS X dvd > and the installation starts. > > On my computer, the installation process fails after a minute or so and > freezes the computer, with the apple logo on the screen. Now this is > where the "magic" begins. Only way to get out of the freeeze is to press > and hold the power button and then the computer shuts down. But when you > turn it on again, the Stamina - Speed button lights up, instantly and > stays lit when booting into Kubuntu, and the Nvidia card is activatet > and as far as I can see, the Intel card is shut off, it is nowhere to be > found in lspci and sudo lshw, but.. that is nothing new. Excuse me, but that is ooooold! The same happens when you boot a Windows-XP CD and reboots before it realy starts. But a lot easier is to use the Kernel Comandline acpi_osi="!Windows 2006" that makes the Z(21) behave like you described here on the follow-up boot. Completely without any detours via XP or Mac OS X etc. pp. > > > The downside is, that when you shutdown Kubuntu, the Nvidia card is > deactivatet again and you have to start the Mac OS X installation again. That is where the Kernel Comandline is for. That step via the Mac-OS X installation is way more complicated ;-) > > A funny thing is, that if you boot into Vista after the failed Max OS X > installation, it can't find any graphic cards what so ever, which > results in a very low resolution. That is nothing new either. Vista needs a different _OSI section in the DSDT. The one we want for Linux (the one that behaves like you 'discoverd') is not suitable for the Vista hybrid-graphics switch solution. > You actually have to boot into Kubuntu > and do a shutdown, before you can boot into windows. I've even tried > taking out the battery to turn of the Nvidia card, but no, it just stays > activated until you do a nice shutdown from Kubuntu :o) > > I hope you can use this for something :o) Please READ this: http://global-social.net/tiki-view_blog.php?blogId=3 Regards, Raphael _______________________________________________ Mailing list: https://launchpad.net/~sony-vaio-z-series Post to : sony-vaio-z-series@lists.launchpad.net Unsubscribe : https://launchpad.net/~sony-vaio-z-series More help : https://help.launchpad.net/ListHelp