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GenTimJS
Guru
Joined: 03 May 2003
Posts: 401
Location: NH, USA
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 Posted: Tue Feb 24, 2004 11:07 pm Post subject: dual head ultra1 creator3d + sunGX |
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Ive got an ultra1 creator3d sytem currently serving up web and mail.
however, i have a spare sun sbus gx frame buffer siting around and figured it might make good work to play around with multiheading
anyone have any experience with this? whats involved typically?
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Sun Blade 1000 2xUltrasparcIII, 2GBram, FC-AL, DVD-R, X3dL
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phygradmarko
n00b
Joined: 13 Jul 2003
Posts: 26
Location: Buffalo, NY
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| Posted: Fri Feb 27, 2004 1:11 pm Post subject: |
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| Quote: |
however, i have a spare sun sbus gx frame buffer siting around and figured it might make good work to play around with multiheading
anyone have any experience with this? whats involved typically?
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This is quite easy to do with the current Xfree86. You simply need to supply X with two device and monitor descriptions (in your XF86Config file) and also where each monitor is relative to one another. For example,
| Code: |
Section "ServerLayout"
Identifier "Simple Layout"
Screen "Screen1"
Screen "Screen0" RightOf "Screen1"
InputDevice "Mouse0" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"
EndSection
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| Code: |
Section "Monitor"
Identifier "monitor0"
VendorName "Sun"
ModelName "17E20"
HorizSync 29-85
VertRefresh 50-150
Option "dpms"
EndSection
Section "Monitor"
Identifier "monitor1"
VendorName "Sun"
ModelName "17E20"
HorizSync 29-85
VertRefresh 50-150
Option "dpms"
EndSection
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| Code: |
Section "Screen"
Identifier "Screen0"
Device "Sun FFB2 Creator3D"
Monitor "monitor0"
DefaultDepth 24
Subsection "Display"
Depth 24
Modes "1280x1024"
EndSubSection
EndSection
Section "Screen"
Identifier "Screen1"
Device "Sun FFB2 Elite3D"
Monitor "monitor1"
DefaultDepth 24
Subsection "Display"
Depth 24
Modes "1280x1024"
EndSubSection
EndSection
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You, of course, will have different Device listings (Creator3D and GX) so your devices listed in the "Screen" sections will differ.
Also, you may not run Xinerama (take multiple screens and combine them into one large one) since this requires both framebuffers run the same depth. The GX is an 8-bit card while the Creator is 24-bit.
Still, this is a fun and sometimes worthy thing to do. |
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jet@0
n00b
Joined: 21 Jan 2004
Posts: 5
Location: earth.
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| Posted: Thu Mar 04, 2004 8:49 am Post subject: TGX is just too slow to do anything meaningful ... |
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TGX is just too slow to do anything meaningful ...
I have a smiliar configuration. But the TGX can hardly support any modern window manager. Terminal emulation is OK, but choppy when scroll lines. Basically it's only useful for displaying console messages.
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phygradmarko
n00b
Joined: 13 Jul 2003
Posts: 26
Location: Buffalo, NY
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| Posted: Thu Mar 04, 2004 12:24 pm Post subject: |
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| Quote: |
TGX is just too slow to do anything meaningful ...
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Hmmm... I always thought the TGX was a fast framebuffer. Its downfall is the 8-bit limit forcing the use of private color spaces.
While the TGX is quite acceptable for use in X (other than the 256 color limit) it is quite slow on the console. I once played with a FFB2 and GX combo in a U2. Even the GX (TGX) was fast enough to be useful in dual head mode. |
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