Very Computer

Since so far I've been unsuccessful in getting XFree4.0 multi-head to
work properly using Xinerama (mouse disappears in 2nd screen, 2nd
screen won't work above 1280.1024, 2nd screen won't work in
accelerated mode ... see thread "XF86 4.0 Multi Head Problems" posted
over the last couple of days...), I thought I'd try shutting Xinerama
off and seeing if I could get it to work that way.

So far, no joy.

The #2 screen just shows me a gray background, no "wallpaper" (I have
wallpaper enabled), and no way to access anything on that screen.

How does multi-head operate if Xinerama is turned off?  Are you
supposed to be able to put desktop #1 on one monitor and desktop #2 on
the other, stuff like that?

I have been through every bit of XF4 documentation I can find and have
spent all of yesterday and most of this morning on Dejanews and so
far, cannot find ANY discussion at all of how to run multi-head with
Xinerama turned off (and as I indicated in the above-referenced post,
Xinerama turned on seems to work but with all the problems listed in
that post).

Any suggestions?

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Quote:>Since so far I've been unsuccessful in getting XFree4.0 multi-head to
>work properly using Xinerama (mouse disappears in 2nd screen, 2nd
>screen won't work above 1280.1024, 2nd screen won't work in
>accelerated mode ... see thread "XF86 4.0 Multi Head Problems" posted
>over the last couple of days...), I thought I'd try shutting Xinerama
>off and seeing if I could get it to work that way.
>So far, no joy.
>The #2 screen just shows me a gray background, no "wallpaper" (I have
>wallpaper enabled), and no way to access anything on that screen.
>How does multi-head operate if Xinerama is turned off?  Are you
>supposed to be able to put desktop #1 on one monitor and desktop #2 on
>the other, stuff like that?
>I have been through every bit of XF4 documentation I can find and have
>spent all of yesterday and most of this morning on Dejanews and so
>far, cannot find ANY discussion at all of how to run multi-head with
>Xinerama turned off (and as I indicated in the above-referenced post,
>Xinerama turned on seems to work but with all the problems listed in
>that post).
>Any suggestions?

Section "ServerLayout"
        Identifier      "MainLayout"
        Screen          "TDFX_Mitsubishi"
        Screen          "MGA_Daytek" RightOf "TDFX_Mitsubishi"
        InputDevice     "AST_Keyboard" "CoreKeyboard"
        InputDevice     "TrackManMarble" "CorePointer"
#       Option          "Xinerama"
EndSection

Once I was able to put the "RightOf" qualifier in there without getting a
segmentation fault, the mouse moved freely between screens.

This configuration gives two screens on the same display.  In my case, the
left is :0.0, and the right is :0.1.  I use fvwm, which auto-detects the
multiple-screen configuration and spawns a second copy of itself to manage
the second screen.  Other window managers may vary.  I also modified my
.xsession this way (I use xdm):

        if xset -display "$DISPLAY.1" q >/dev/null 2>&1
        then
                xearth -display "$DISPLAY.1" -fork
        fi

This happens before I start the window manager, so, at this point, DISPLAY
is ":0", not ":0.1".  By running this, I have xearth automatically started
in the root window of the right hand screen, and my wallpaper file shown
in the root window of the left hand screen (by an earlier command in my
.xsession script.)

Matt.
--

"There is hopeful symbolism in the fact that flags do not wave
in a vacuum."                      -- Arthur C. Clarke