Re: AW: Kernel Version

[Zoltan B. <zb...@fr...>]

Hi,

Aivils Stoss =C3=ADrta:

>On Pirmdiena, 30. Janv=C4=81ris 2006 10:05, Unger Richard wrote:
> =20
>
>>Hi!
>>
>>Thanks for the tip, I should obviously have checked for tags...
>>
>>Is the linuxconsole stuff still under active development?
>>   =20
>>
>
>No.
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>

I still upgrade the kernel patch for every major kernel version, I am on=20
2.6.15-ruby now.
Though I always leave out fbdev as I have to update the kernel as soon=20
as possible
to keep the machine running with very little downtime.

>>Will the redesigned console layer make it into the mainline kernel?
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>>
>
>Seems no.
>1) console developing is nightmare.
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>
... and almost everyone updates it in mainline.

>2) 99% of testers or endusers use multiple X servers instead of multiple=
 text=20
>mode consoles - multiple text mode became nuty developers trick.
> =20
>

But the kernel developers and embedded system users may find it useful, t=
oo.

>3)I do not know how to work "terminal emulation".
>4)I cannot write in the sane English.=20
> =20
>
That's not a real problem. :-)

>>To me it seems like an obvious idea that if a multiuser system has mult=
iple
>>screens and keyboards, multiple (independant) terminals should be possi=
ble.
>>In fact, to me, any other situation indicates a little bit of a design
>>problem.
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>>
>
>Linux is so flexible. Obvious reach same result in very different ways.
>
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>
>>Currently I'm playing with the 2.6.9-ruby kernel I compiled. Don't have
>>much time as I am moving these days, but it looks like the kernel boots
>>fine and the /dev/bus/console devices are now available...
>>
>>I do have a few questions, documentation on this is so hard to find...
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>>
>
>http://www.ltn.lv/~aivils/
>
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>
>>1) Is it possible to have more than one VGA console,
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>>
>
>No.
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>

But development is under way. Every PCI domain can have only one
active VGA device in any given moment. By "active" I mean the device
decodes the VGA address lines and responds to reads and writes.
Hopefully VGA cards keep the display active while their VGA addressing
mode are deactivated. An in-kernel VGA arbiter is developed by (I think)
Dave Arlie. You can find him on the dri...@li...
and xo...@li... mailing lists.

>>or is the VGA console=20
>>always only bound to the primary graphics device? 2) What's the status =
on
>>framebuffer support? All the docs indicate framebuffer console isn't re=
ady
>>- is it worth trying out multiple fbcons?
>>   =20
>>
>
>Each fb device (/dev/fbXX) assigned with separate console. Each separate
>console may have keyboard device. Last working is 2.6.13
>http://www.ltn.lv/~aivils/files/ruby-2.6.13-A0.diff.bz2
>Under 2.6.13 kenel exists option
>dumbcon=3D3:4
>where 3 is count of dummy consoles, 4 is TTY count per single dummy cons=
ole
>As result
>VGA have tty1-tty16
>dummy 1 have tty17-tty20
>dummy 2 have tty21-tty24
>dummy 3 have tty25-tty28
>
>Probably someone load fb dev driver, which creates /dev/fb0 - /dev/fb3,
>after fbcon module loading these fb devices are assigned :
>fb0 takes over VGA - tty1-tty16
>fb1 takes over dummy 1 - tty17-tty20
>fb2 - tty21-tty24
>fb3 - tty25-tty28
>
>If system operator will allow login via fb1-fb3 , then must be started
>according login processes like mingetty. Line from /etc/inittab
><skip>
>17:2345:respawn:/sbin/mingetty tty17
><skip>
>
>Keyboards are connected to console automatic. 1st connect to VGA,
>2nd to dummy 1, 3rd to dummy 2, ...
>
>Special device /dev/tty0 seems will not work proper.
>
>Aivils
> =20
>

Best regards,
Zolt=C3=A1n B=C3=B6sz=C3=B6rm=C3=A9nyi