Have Pi 2, will hack

[multipitch]

Hi All,

Got my new Raspberry Pi 2 working with ARM thanks to thinkingeye's useful guide http://archlinuxarm.org/forum/viewtopic.php?f=60&t=8366&p=44860&hilit=raspberry+pi#p44851

I managed to get Cinnamon and Gnome working, but only in 2D/software rendering mode.
I see there is now an official image available at http://archlinuxarm.org/platforms/armv7/broadcom/raspberry-pi-2, which I'll try out when I get home from work.

I'll be tinkering away throughout the weekend (when I'm not watching the Six Nations), so will be able to try out a few things.
I'm a moderately experienced arch user but an arch arm newbie.

Good work on the speedy port!

[WarheadsSE]

Wasn't a "port"
It was kernel bring-up and userland verification. Having the hardware helps a LOT.

[calzon65]

WarheadSE, does that mean when the Alarm devs make a version of Alarm available for a platform, that distro is tweaked, or whatever you call it for the particular platform?

I ask because I'd like to understand if Alarm is "adjusted" (if that's the word) to take advantage of certain characteristics, like multi-core, for a particular hardware platform.

[WarheadsSE]

No, we don't "adjust" things for a piece of hardware.

When we add support, we simply do up a bootloader and kernel, then make an appropriate tarball containing the normal userland (to the architecture of the CPU), and then release that.

There is really no "special tuning" needed for multi-core systems vs single-core systems. Either the userland program uses it, or they do not.

[calzon65]

Thanks for the explanation WarheadSE. I sincerely appreciate the Alarm site and how the Alarm team has created a standardized and easy-to-use portal for installing Alarm on a whole bunch of ARM systems.

[multipitch]

A few reboots into my first install with the new image, I was getting a kernel oops every time I struck any key on the keyboard. Out of frustration, I wiped the SD card and started again. Seems to be working fine now, using an Edimax dongle for Wifi and a cheap logitech wired keyboard and mouse.
I loaded cinnamon but it is only running in software rendering mode. I've installed as follows:

$this->bbcode_second_pass_code('', '# pacman -S xorg-server xorg-server-utils xorg-xinit xf86-video-fbdev
# pacman -S cinnamon
$ echo 'exec cinnamon-session' > ~/.xinitrc
$ startx')

Any suggestions as to how to enable 3D rendering?