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 G400 Dualhead with 1600x1200 (both screens)

Does anybody know, if this is possible with XFree86 (version 4.0.3) and
kernel 2.4.5?

If I tried it, I saw the lines below in the log-file.
I don't understand, why the max pixel clock is set to 135. I have these
lines in my XF86Config-4 (which work well for the Monitor0):
Section "Monitor"
        Identifier      "Monitor1"
        VendorName      "Hewlett Packard"
        ModelName       "p1120"
        HorizSync       30.0-130.0
        VertRefresh     40-160
EndSection

excerpt form /var/log/XFree86.0.log:

(==) MGA(1): Using gamma correction (1.0, 1.0, 1.0)
(==) MGA(1): Min pixel clock is 12 MHz
(==) MGA(1): Max pixel clock is 135 MHz
(II) MGA(1): Monitor1: Using hsync range of 30.00-130.00 kHz
(II) MGA(1): Monitor1: Using vrefresh range of 40.00-160.00 Hz
(II) MGA(1): Clock range:  12.00 to 135.00 MHz
(WW) MGA(1): Default mode "1024x768" deleted (bad mode clock/interlace/doublescan
)
(WW) MGA(1): Default mode "1280x960" deleted (bad mode clock/interlace/doublescan
)
(WW) MGA(1): Default mode "1280x1024" deleted (bad mode clock/interlace/doublesca
n)
(WW) MGA(1): Default mode "1600x1200" deleted (bad mode clock/interlace/doublesca
n)
(WW) MGA(1): Default mode "1600x1200" deleted (bad mode clock/interlace/doublesca
n)
(WW) MGA(1): Default mode "1600x1200" deleted (bad mode clock/interlace/doublesca
n)
(WW) MGA(1): Default mode "1600x1200" deleted (bad mode clock/interlace/doublesca
n)
(WW) MGA(1): Default mode "1600x1200" deleted (bad mode clock/interlace/doublesca
n)
(WW) MGA(1): Default mode "1792x1344" deleted (bad mode clock/interlace/doublesca
n)
(WW) MGA(1): Default mode "1792x1344" deleted (bad mode clock/interlace/doublesca
n)
(WW) MGA(1): Default mode "1856x1392" deleted (bad mode clock/interlace/doublesca
n)
(WW) MGA(1): Default mode "1856x1392" deleted (bad mode clock/interlace/doublesca
n)
(WW) MGA(1): Default mode "1920x1440" deleted (bad mode clock/interlace/doublesca
n)
(WW) MGA(1): Default mode "1920x1440" deleted (bad mode clock/interlace/doublesca
n)
(WW) MGA(1): Mode "1600x1200" deleted (no mode of this name)
(WW) MGA(1): Default mode "1152x864" deleted (all modes must have the same width)
(WW) MGA(1): Default mode "1152x864" deleted (no mode of this name)
(WW) MGA(1): Default mode "1024x768" deleted (all modes must have the same width)
(WW) MGA(1): Default mode "1024x768" deleted (all modes must have the same width)
(WW) MGA(1): Default mode "1024x768" deleted (all modes must have the same width)
(WW) MGA(1): Default mode "1024x768" deleted (all modes must have the same width)
(WW) MGA(1): Default mode "1024x768" deleted (no mode of this name)
(WW) MGA(1): Default mode "800x600" deleted (all modes must have the same width)
(WW) MGA(1): Default mode "800x600" deleted (all modes must have the same width)
(WW) MGA(1): Default mode "800x600" deleted (all modes must have the same width)
(WW) MGA(1): Default mode "800x600" deleted (all modes must have the same width)
(WW) MGA(1): Default mode "800x600" deleted (all modes must have the same width)
(WW) MGA(1): Default mode "800x600" deleted (no mode of this name)
(WW) MGA(1): Default mode "640x480" deleted (all modes must have the same width)
(WW) MGA(1): Default mode "640x480" deleted (all modes must have the same width)
(WW) MGA(1): Default mode "640x480" deleted (all modes must have the same width)
(WW) MGA(1): Default mode "640x480" deleted (all modes must have the same width)
(WW) MGA(1): Default mode "640x480" deleted (no mode of this name)
(--) MGA(1): Virtual size is 1280x1024 (pitch 1344)
(**) MGA(1): Default mode "1280x1024": 135.0 MHz, 80.0 kHz, 75.0 Hz

Thanks for help



 Fri, 12 Dec 2003 20:31:22 GMT   
 G400 Dualhead with 1600x1200 (both screens)
IIRC, this is a limitation of the G400.  The second output only has a 135
MHz ramdac, and a max resolution of 1280x1024.  So although the monitor
supports it, the card does not.  The G450 is much improved in this
respect, as it can run the second head at least up to 1600x1200.

In article <vslmmg3fmt....@alder.bessy.de>, "Dieter Faulbaum"

--
PC Chips actually goes by many names. PCChips = Ability = Alton = Amptron =
Aristo = Asia Gate = Asiatech = Assa = Atrend = Elpina = Eurone = Fugu =
Fugutech = Hi Sing = Houston = Hsing Tech = H Tech = Matsonic = Minstaple =
PCWare = Pine = Protac = QDI = Warpspeed



 Sat, 13 Dec 2003 03:12:09 GMT   
 G400 Dualhead with 1600x1200 (both screens)

news:d2MZ6.1367$MK4.172603@newsread1.prod.itd.earthlink.net...

yes this is unfortunately true as I have a G400 DH too.
The worst limitation is the 2 screens together cannot be more than
2048 pixels wide
this means even 1280x1024 on both screens is not possible.
Worse, for me, is that I cannot have 1600x1200 on my main screen, and
then 640 on the second one.
These problems are solved with the G450

I suggest (although I haven't tried it) putting in a cheap PCI card
for the second screen.
The G400 will behave in this configuration, even if you have to let
the PCI card be the primary one.



 Sat, 13 Dec 2003 16:52:39 GMT   
 G400 Dualhead with 1600x1200 (both screens)

The G400 Max must not suffer from this limitation because I have no
problem with getting 1280x1024 on both screens.

I actually had occaisional lockups in this situation when starting or
killing X.

Adam



 Sat, 13 Dec 2003 20:56:16 GMT   
 G400 Dualhead with 1600x1200 (both screens)
Matthew Smith <m...@the-good-stuff.freeserve.co.uk> speaking for the space aliens said:

Really?  Under 'that other lesser os' :-), I'm able to have one
screen at 1280x1024 and the second at 1024x780.

Matt

--
  O      O            __ |     \|                             O       O    
 /|\   -/-   _ __\ O    _\O     |/      (/              O/    /\-    /|\
 / \   / )    /   \       |    /O    _ O/_   _ O_ ^_   / \^_   )\    / \
------------------------------------------------------------------------
Matthew Goldman       E-mail: gold...@visi.com

Its not {*filter*}ism if you don't speak their language.  
La, la, la, I can't understand you.  La, la, la....



 Sun, 14 Dec 2003 00:48:05 GMT   
 G400 Dualhead with 1600x1200 (both screens)
In article <913_6.3549$B7.532...@ruti.visi.com>, "Goldman of Chaos"

I am running the G450 dual-head, using XFree86 4.0.3 with the latest
matrox drivers and Gnome 1.2, with the following:

                Size    Resolution
Monitor 1       19"                1600x1200
Monitor 2       15"                1024x768

My virtual desktop is 2624x1200 :0)

--
  Wayne A. Osborn, SCADA Engineer.[dnar AT iinet DOT net DOT au]
  Registered Linux User #212818.  [2.2.16-22-Win4Lin-686] [i686]
  7:50pm  up 2 days, 20:18,  2 users,  load average: 2.02, 2.04, 2.00
  ...Type louder, please.



 Sun, 14 Dec 2003 19:59:26 GMT   
 G400 Dualhead with 1600x1200 (both screens)

Dualhead is so much better when you run both displays at the same
resolution :-)  I have two 19" monitors running at 1280x1024 on my G400
Max. :-)

Adam



 Sun, 14 Dec 2003 20:39:58 GMT   
 G400 Dualhead with 1600x1200 (both screens)
In article <Pine.BOS.4.10.10106270839280.11361-100...@ashke.com>, "Adam K

I imagine that would be so, trying to persude wifey to buy another...

My 19" Mitsubishi model 1995 is now replaced by the slim-line model
1995SL and looks quite different.. ;(

I sold a system and 1995 monitor to a family friend, a year ago,
considering buying the new 1995SL and swapping with them. They get a new
monitor with 3yr warranty, I get a matching mate for mine...

I am using the 15" for stuff like monitoring my Linux kernel messages and
general systems stuff like that, sometimes I push my browser over there
too. I am finding it very usefull, but miss it (and Linux!) when I go to
work :(

--
  Wayne A. Osborn, SCADA Engineer.[dnar AT iinet DOT net DOT au]
  Registered Linux User #212818.  [2.2.16-22-Win4Lin-686] [i686]
  9:00pm  up 2 days, 21:28,  3 users,  load average: 2.19, 1.99, 1.86
  ...As the trials of life continue to take their toll, remember that there
is always a future in Computer Maintenance.
                -- National Lampoon, "Deteriorata"



 Sun, 14 Dec 2003 21:05:49 GMT   
 G400 Dualhead with 1600x1200 (both screens)
Wayne,

Do I understand correctly that you are running one session on one monitor and
another on the other monitor?  If so, could you please explain how you achieved
that.  I have a Matrox G400 Max w/dualhead and two monitors (a 15" Seiko and a
17" Mag -- obviously not running at the same resolution).  I can only figure
out how to get them both sharing the same session; ie., one to left or right of
the other (or top/bottom).  Any help appreciated.

Joe Henley



 Sun, 14 Dec 2003 22:41:59 GMT   
 G400 Dualhead with 1600x1200 (both screens)

There are a number of ways that Xinerama (the setup that you currently
have) can be acheived.

The first is starting X with:

startx -- +xinerama

from the terminal.  However, that's probably not how you're doing it
(otherwise, I'm sure you'd have tried it without the -- +xinerama and
gotten it working like you want).

The next is with the:

Option  "xinerama"

line in the "ServerLayout" section of your /etc/X11/XF86Config file

If you find it there, comment out the line and restart X.  

Next, check your /etc/X11/xdm/Xservers file...

Look to see if the server specified has "+ xinerama" tagged onto
the end... Something like:

:0 local /usr/X11R6/bin/X +xinerama

If so, delete the +xinerama

(This will only impact you if you're started X from xdm, and not from the
terminal with startx).

Make sense?

Adam



 Sun, 14 Dec 2003 22:49:17 GMT   
 G400 Dualhead with 1600x1200 (both screens)
In article <3B39F06E.E8057...@kc.rr.com>, "Joe Henley"

No, 1 session only.

You could run a local VNC session on the second monitor though....

--
  Wayne A. Osborn, SCADA Engineer.[dnar AT iinet DOT net DOT au]
  Registered Linux User #212818.  [2.2.16-22-Win4Lin-686] [i686]
 11:20pm  up 2 days, 23:48,  2 users,  load average: 2.09, 2.04, 1.99
  ...It's multiple choice time...

        What is FORTRAN?

        a: Between thre and fiv tran.
        b: What two computers engage in before they interface.
        c: Ridiculous.



 Sun, 14 Dec 2003 23:22:53 GMT   
 G400 Dualhead with 1600x1200 (both screens)
Adam,

Yup, makes sense.  Next I do what?  ... the reason I ask is that I was using the
Matrox program to set up dual monitor mode; and it provides nothing about getting
both monitors working, but on different sessions.  Can you clarify further, please.
Is it just "turn on the other monitor?  .. and there will be a prompt?"  ... guess
who's a newbie.  Thanks for your help!

Joe Henley



 Tue, 16 Dec 2003 05:35:02 GMT   
 G400 Dualhead with 1600x1200 (both screens)
Wayne,

Actually, that would be very helpful.  Not to mention cool!  So can you give
me some guidance on how you did it?  I already have VNC working to access my
wife's Windoze 98 machine on our network.  But it ties up too much real
estate on the screen.  Using it only on the second monitor would be great.
Any/all help appreciated.

Joe Henley



 Tue, 16 Dec 2003 05:37:55 GMT   
 G400 Dualhead with 1600x1200 (both screens)

Well, once you've removed all those options, you should just be able to do
'startx' and have one session on each display.  Now, if you're running KDE
or gnome, this might not be the case.  You might need to start up a terminal
and type:

$ export DISPLAY=localhost:1
$ enlightenment                                         <--  or other window manager

In most cases, you'll have two windowmanagers going (enlightenment will start
up on both, for example, as will fvwm), but KDE and gnome are considerably
more complicated and will only start up on the primary display.

Adam



 Tue, 16 Dec 2003 05:59:51 GMT   
 G400 Dualhead with 1600x1200 (both screens)

Since both Gnome and KDE are not window managers but will use in a
session _some_ window manager with which they were configured (and this
could be even enlightenment or fvwm) it is hard to "start" them in the
sense above.  Deficiencies in handling multilple displays is a bug
which was, I believe, reported many times.  Apparently not that easy to
fix.

Here is a hacky way to start a gnome session on the second display:

  xterm -display :0.1 -e gnome-session

Proably "-e startkde" will work as well although I never tried.
You may also see if

  xterm -display :0.1 -e 'exec gnome-session'

makes any difference.  Not pretty but it will do for the moment.

This can be, obviously, automated in your startup stuff.
Quite possibly this should be in a subshell which then you can
possibly put in a background.  Play with details yourself.

  Michal



 Wed, 17 Dec 2003 01:30:02 GMT   
 
   [ 15 post ] 

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