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Conference wrksys::alphastation

Title:Alpha Workstation Conference
Notice:See note 1.* for conference notices
Moderator:WRKSYS::HOUSE
Created:Wed Sep 07 1994
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:1996
Total number of notes:9122

37.0. "Multihead display on AlphaStation?" by GUIDUK::ONO (The Wrong Stuff) Tue Nov 15 1994 13:11

T.RTitleUserPersonal
Name		DateLines
37.1Try Avanti with OSF/1 or OpenVMSWRKSYS::HOUSEKenny - PKO3-1/N75 - DTN 223-6720Tue Nov 15 1994 14:3515
37.2Homogeneous multihead onlyDECWIN::MCCARTNEYWed Nov 16 1994 10:385
37.3Multihead supportWRKSYS::HERINGFri Dec 02 1994 14:409
37.4Mixed multiheads?DECLNE::BILODEAUWed Dec 07 1994 17:184
37.5ZLXp's mix at willWRKSYS::HERINGWed Dec 07 1994 17:326
37.6Performance w/ PCI/ISA mix-and-matchGUIDUK::SOMERTurgan Somer - SEO6 - DTN 545-4020Wed Dec 07 1994 20:2810
37.7it's probably OKWRKSYS::SCHUMANNUHF computersThu Dec 08 1994 08:479
37.8a light ISA load shouldn't bother PCI too muchWRKSYS::HOUSEKenny - PKO3-1/N75 - DTN 223-6720Thu Dec 08 1994 09:2030
37.9Why is the PCI maxed out at the same time as ISA?GUIDUK::SOMERTurgan Somer - SEO6 - DTN 545-4020Thu Dec 08 1994 13:3313
37.10DECWET::COLGATEThu Dec 08 1994 19:245
37.11One IRQ per card, or per chip ??BRUMMY::WALLACE_JFri Dec 09 1994 05:395
37.12Yea Kenny, Please ExplainNYOSS1::MONASCHI wrote the DECmate gamesFri Dec 09 1994 08:4213
37.13ZlXp support on Mikasa and SableWRKSYS::HERINGFri Dec 09 1994 09:135
37.14PCI bus waits on ISA data from bridgeWRKSYS::HOUSEKenny - PKO3-1/N75 - DTN 223-6720Fri Dec 09 1994 09:2253
37.15ISA DMA wastes PCI bandwidthWRKSYS::SCHUMANNUHF computersFri Dec 09 1994 10:1011
37.16triple head again - am I in trouble ?BRUMMY::SPREADBURYFri Dec 09 1994 12:018
37.17two heads, three heads, no problemWRKSYS::HOUSEKenny - PKO3-1/N75 - DTN 223-6720Fri Dec 09 1994 13:2142
37.18How does it actually work with Windows NT?OSL09::OLAVDo it in parallel!Sun Dec 11 1994 12:027
37.19WINDOW'S NT Multi-head environmentWRKSYS::HERINGMon Dec 12 1994 09:321
37.20Confused by 37.3 and 42.4OSL09::OLAVDo it in parallel!Mon Dec 12 1994 11:207
37.21WRKSYS::VAGHULMon Dec 12 1994 12:1311
37.22ATI multiple heads??PTOVAX::SCOTTJ. Ray ScottWed Dec 14 1994 22:026
37.23Yes, and (unfortunately) NoTALLIS::JESTABROThu Dec 15 1994 13:4417
37.24ATI multiple headsWRKSYS::HERINGThu Dec 15 1994 15:406
37.25Large impactOSL09::OLAVDo it in parallel!Fri Dec 23 1994 04:045
37.26Clarification on ATI Mach64GANTRY::ALLBERYJimFri Mar 03 1995 12:0312
37.27STAR::KLEINSORGEOpenVMS Alpha GraphicsSat Mar 04 1995 08:2516
37.28ATI MACH 64 cardHELIX::SONTAKKEMon Mar 06 1995 12:564
37.29Model NumbersMLNORO::BELLENCHIARoberto - SBU supportTue Mar 07 1995 11:007
37.30HELIX::SONTAKKETue Mar 07 1995 12:266
37.31STAR::KLEINSORGEOpenVMS Alpha GraphicsTue Mar 07 1995 13:525
37.32Need multi, multi, multihead...TBLADE::GEEHANOpenVMS: It IS what NT wants to beThu Mar 09 1995 11:1234
37.33How many units??WRKSYS::SCHUMANNNever tested on animalsThu Mar 09 1995 12:1625
37.34MFX600SAYER::ELMOREthrough the looking glassThu Mar 09 1995 13:5915
37.35BGSDEV::TANNENBAUMTGA DeveloperThu Mar 09 1995 14:568
37.36STAR::KLEINSORGEOpenVMS Alpha GraphicsThu Mar 09 1995 15:0710
37.37MAXport PCI expansionSAYER::ELMOREthrough the looking glassThu Mar 09 1995 15:3193
37.38HYDRA multiheadWRKSYS::HERINGThu Mar 09 1995 17:3113
37.39STAR::KLEINSORGEOpenVMS Alpha GraphicsThu Mar 09 1995 20:188
37.40"Ganging" of several machinesKAMPUS::NEIDECKERGLASS: Services on DemandFri Mar 10 1995 03:506
37.41Great ideas! ThanksTBLADE::GEEHANOpenVMS: It IS what NT wants to beFri Mar 10 1995 11:1474
37.43200 has 2 PCI slots, 400 has 3 PCI slots.WRKSYS::SCHUMANNNever tested on animalsThu Mar 23 1995 14:2212
37.44hi-res solution pointerSAYER::ELMOREthrough the looking glassFri Mar 24 1995 10:2933
37.45Who?NYOSS1::MONASCHI wrote the DECmate gamesFri Mar 24 1995 22:5010
37.46Multiple Screen Video is availableASSAM::BREENFri Mar 31 1995 17:4034
37.47from a X novice...ANNECY::ADAMFabrice, CSS Annecy/France'Tue Jan 09 1996 09:2538
37.48GANTRY::ALLBERYJimWed Jan 10 1996 10:1227
37.49STAR::KLEINSORGEOpenVMS Alpha GraphicsThu Jan 11 1996 10:1728
37.50I feel my pain !ANNECY::ADAMFabrice, CSS Annecy/France'Thu Jan 11 1996 11:515
37.51WRKSYS::HERINGThu Jan 18 1996 16:418
37.52Does OpenVMS multihead req Open3D?ACISS2::MARESyou get what you settle forWed Mar 06 1996 23:5014
37.53DECWIN::MCCARTNEYFri Mar 08 1996 16:244
37.54Open3D specifics?ACISS2::MARESyou get what you settle forSat Mar 09 1996 09:595
37.55Delivery vehicle for 2D; functionality for 3DVESPER::VESPERMember: APS notes-reading tag-teamMon Mar 11 1996 10:359
37.56Can we get more than 3 in the AS600TROOA::GOBRIENToronto Blue Jays:1992,1993 WS ChampsWed Mar 27 1996 16:528
37.57hardware/firmware will do fourWRKSYS::BIELAWSKIMon Apr 01 1996 16:414
37.58STAR::KLEINSORGEOpenVMS Alpha GraphicsTue Apr 02 1996 09:427
37.59Dual-head on NT clarification?KAOFS::D_KUNDRIKTue Jan 21 1997 16:059
37.60NT V4 - it's all changed w.r.t. multiheadBBPBV1::WALLACEjohn wallace @ bbp. +44 860 675093Wed Jan 22 1997 10:4416
37.61nt4.0 support in sp3?WRKSYS::BCLARKI have dyslexia of the fingersWed Jan 22 1997 12:417
37.62SP3 not magicWRKSYS::DOTYRuss Doty, Graphics and MultimediaWed Jan 22 1997 13:136
37.63multi-head support under NT WHEN???? WRKSYS::BCLARKI have dyslexia of the fingersFri Jan 24 1997 07:509
    re: .62
    
    >>>Don't expect SP3 to provide multi-head support by itself, and don't
       expect multi-head support in the March timeframe.
    
    This response leaves more questions than answers. What can be
    'expected'?
    
    bc
37.64NT MultiheadWRKSYS::DOTYRuss Doty, Graphics and MultimediaFri Jan 24 1997 12:177
    re: multi-head support under NT WHEN???
    
    Windows NT 4.0 does not allow 3D multihead support today.  When Microsoft
    makes changes to NT 4.0 that allow multihead we will begin working on
    it.  Multihead is a high priority for us.  Our target is this summer --
    IF the necessary NT 4.0 support becomes available as expected.  (And,
    hopefully, SP3 will be more reliable than SP2....)
37.65Trust, but verify. Matrox already have it?????BBPBV1::WALLACEjohn wallace @ bbp. +44 860 675093Sat Jan 25 1997 06:542
    Customers are telling me that Matrox already have multihead on NT 4 "by
    doing it in the driver". Should I believe them ?
37.66for Intel...CERN::HOBBSCongrats to the Ignoble Peace Prize winner! (http://www.eecs.harvard.edu/ig_nobel)Sat Jan 25 1997 06:585
The README on the current Intel kit (1597_233.zip) that I copied from their
web site yesterday does claim support for 4 heads.

Considering the amount of information on configuring multiheads
in the readme, it looks real.  (and it's for NT4)
37.67WRKSYS::mccasa.eng.pko.dec.com::DUTTONThere once was a note, pure and easy...Sat Jan 25 1997 18:3110
It is my understanding that the Matrox approach is once again a "hack" 
under NT 4.0, which means that it could break anytime Microsoft does a
new release.  It is also my understanding that the approach our
software people are taking is to get multi-head officially supported,
and then release a driver that *won't* break in future releases.

...but then I could be wrong... :)

	-td
37.68WRKSYS::DOTYRuss Doty, Graphics and MultimediaSun Jan 26 1997 22:182
    The key thing to check is 3D -- it is possible to do 3D multihead under
    NT 4.0.  Does the Matrox driver support OpenGL on both heads?
37.69DECWET::VAGHULWed May 07 1997 13:1011
    
    The Matrox driver supports 3d on both heads. The OpenGL acceleration
    implemented in the Matrox driver for NT40 uses MCD architecture. MCD =
    Mini Client Driver. When there is a single head - OpenGL is accelerated
    (depending upon whether you have a 4MB or 8MB, size of the window,
    resolution etc) via MCD. When there are two heads - OpenGL is not
    accelerated - i.e. it goes through the Software Pipe. 
    
    Hopefully in NT 50 timeframe, we can accelerate OpenGL on both heads.
    
    Mohan