Re: Newbie seeks help

[Svetoslav S. <sv...@gm...>]

> On Tuesday 20 July 2004 11:23, Andreas Schuldei wrote:
> > * Svetoslav Slavtchev (sv...@gm...) [040720 07:17]:
> > > > I have a machine with multipul VGA cards, and USB, I would love to
> set
> > > > this up so that I can have several people use this in console mode,
> each
> > > > tty on a seperate monitor and usb Keyboard and mouse? 
> > > 
> > > http://startx.times.lv/
> > > http://www.tldp.org/HOWTO/XFree-Local-multi-user-HOWTO/
> > > http://disjunkt.com/dualhead/
> > > 
> > > you may also want to chack this url
> > > http://www.c3sl.ufpr.br/fourhead/index-en.php
> > 
> > actually the console does not work here. i do remember that there
> > was some trick with loading framebuffer modules in a special
> > order. how did that work? 
> 
> No triks. fbcon seems contain bugs. My test adapters is too old and
> maintainer-less (Voodoo 1, ATI 3D rage). tdfxfb will not work on 2
> adapters.
> 
> Triks work for xf86 driver load sequence.
> 
> > nowerdays i have these graphics 
> > adapters:
> > 
> > /bin/lspci | grep VGA
> > 0000:00:08.0 VGA compatible controller: ATI Technologies Inc RV280
> [Radeon 9200 SE] (rev 01)
> > 0000:01:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA G400
> AGP (rev 82)
> Just try 4 sequences:
> 1)
> modprobe matroxfb
> modprobe radeonfb
> modprobe fbcon
> 2)
> modprobe radeonfb
> modprobe matroxfb
> modprobe fbcon
> 3)
> modprobe radeonfb
> modprobe fbcon
> 4)
> modprobe matroxfb
> modprobe fbcon
> :)
> 
> Secondary xf86 may stop Your console output.
> In may case i oft  do blindly login and type "consolechars -d", which
> command restores VGA fonts. After "consolechars -d" VGA is usable until
> any xf86 restart.
> 
> Aivils
> 

let's see what i can remmember
/* i've some troubles with my G550DH headed box
 * for quite some time now :(
 */

IIRC i just needed matroxfb and fbcon compiled as modules
and a tiny script

smth like 
----------------------- script start
modprobe matroxfb_g450
modprobe matroxfb_crtc2

/* reverse the screens and separate the outputs*/
matrox_reverse 

modprobe fbcon

/* reconfigure input devices for newly added VC's */
/etc/hotplug/input.rc start 

/* run additional gettys for second head
init 4

------------------- script ends

and i had to patch XFree /* and use two binaries */
as XFree seems to use hardcoded vt numbers for VT-switching
/* with the standard -prefbusid Xserver, on the second head
 * i was unable to switch to console as it reported
 * some stupid error
 */

that was running really good with ruby-2.6.3 and 2.6.5,
but i couldn't find time to get ruby-2.6.7 on it :(
now that ruby has multiple cursors 

best,

svetljo

PS.
matrox_reverse is part of matroxset,
but might have a bit different name in the
tarball
and might not be needed anymore, as the 
matroxfb driver now should support
changing this settings via boot/modprobe.conf options

PPS.

i couldn't get neither rivafb, nor radeonfb
drivers from vanilla 2.6 to works with my hardware,
and for that reason ruby couldn't work with them too :(

PPPS.
secondary cards are very tricky,
some one needs to post them and initialise the bios
the DRI guys are working on a standalone utility
but i couldn't find any sources, and it wont work
with Nvidia cards

for now, probably only XFree -probeonly can do it

and of course there are no such troubles with a
single double headed Matrox card :-)

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