On 6/9/05, kenoti maembe [off-list ref] wrote:

Am working on a dual head project for my final year project at the
university of nairobi in kenya and come across a discussion where it
was stated that the linux kernel (by then 2.4) does not allow for two
or more virtual terminals to exist concurrently..I have a few
questions I would like to ask
1.  Is this still the case with the 2.6 kernel? Thought of working
through these by creating a new XFree86 and using the XFree86
prefbusid patch from.from http://www.ltn.lv/~aivils/ bt still only one
vt works at a time.
2. Have tried to assign devices to the different vts but cant seemt to
get a way to assign the usb keyboard.All input device modules and usb
modules are load in the kernel so dont understand what the issue is.

You need the ruby kernel patch set to support multiple VTs.
http://linuxconsole.sourceforge.net/
http://linuxconsole.bkbits.net/

There are also patches for supporting multiple video cards/users from
X but I don't know where they are. Ask on the x.org list or James will
know.

I'm not sure how multiple keyboards are handled in ruby. For Xegl I am
using the new evdev interface.
http://www.frogmouth.net/hid-doco/c537.html for examples.

Dealing with multiple video cards is very challenging especially
without the hardware documentation.

For a different project you might want to try implementing the EGL
interface on a 3D card. Documentation for ATI Rage128 and Mach64 (no
one is working on these) is available so if you could get your hands
on a PCI version (about $30) of one of those you'd be set. You want a
PCI version for target debug, then you run X and your debugger on the
Nvidia AGP card.

http://mesa3d.sf.net
http://lists.freedesktop.org/mailman/listinfo/dri-egl

Implementing EGL is more narrow in scope and should be easier to do.
EGL forms the basis of Xegl which is the new 3D accelerated X server.

CPU: Athlon 1200+
RAM: 384Mb
Videocards: NVIDIA GeForce4 MX 440 (AGP), S3 Tio (PCI)
Motherboard: Via
Keyboards: one PS/2 keyboards, one USB keyboard
Mice: one serial, one USB
Monitors: 17'', 15''
on a mandrake 10.0

Thank you all.

-- 
Jon Smirl
jonsmirl@gmail.com


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