Can I use a 27" monitor (very-high res: 2560x1440) with MOS?
  • Moderator
    Miky060
    Posts: 694 from 2003/2/24
    From: ITALY
    I would like to by a Dell Ultrasharp U2711:

    http://www.tftcentral.co.uk/reviews/dell_u2711.htm
    http://www.flatpanelshd.com/review.php?subaction=showfull&id=1265617565

    and use it with MorphOS. What do you think about this? Would be the hardware too slow to have a comfortable use with a so big resolution monitor?

    [ Edited by Miky060 15.04.2012 - 11:56 ]

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  • »15.04.12 - 09:49
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  • Moderator
    Kronos
    Posts: 2452 from 2003/2/24
    - no such res predefined in MorphOS (I did define a new 1920x1200 res back with MorphOS 1.4.x so it should be doable)
    - you'll be running out of VMEM real fast even with 128MB
    - no (fully) supported GFX-card comes with DVI-D (or even Display-Port), not sure wether analog would be a good idea at such res.
  • »15.04.12 - 11:28
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  • Moderator
    Miky060
    Posts: 694 from 2003/2/24
    From: ITALY
    I've just fitted a Radeon9800XT 256MB: no way to use this monitor with this board at full resolution?

    [ Edited by Miky060 15.04.2012 - 13:16 ]

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  • »15.04.12 - 12:16
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  • Yokemate of Keyboards
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    Andreas_Wolf
    Posts: 12408 from 2003/5/22
    From: Germany
    > I've just fitted a Radeon9800XT 256MB

    MorphOS 2.7 should only see half of that VRAM:

    https://morph.zone/modules/newbb_plus/viewtopic.php?forum=11&topic_id=7339&start=34

    Or does that limitation, for whatever reason, not apply to your config?
  • »15.04.12 - 12:30
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  • Moderator
    Kronos
    Posts: 2452 from 2003/2/24
    Well the 9800XT should have DVI-D but isn't fully supported (read no 3D).

    Wether DVI-D works out of the box or would require xtra work in the GFX-driver ....... guess you're about to find out ...
  • »15.04.12 - 12:48
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  • MorphOS Developer
    jacadcaps
    Posts: 3215 from 2003/3/5
    From: Canada
    I don't think we've ever tested a dual-link dvi - most likely it isn't going to work. Also, even if you used it with R200, you'd get no 3D acceleration on such resolutions, also for 2D alpha operations.
  • »15.04.12 - 14:12
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  • Jim
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    Jim
    Posts: 4977 from 2009/1/28
    From: Delaware, USA
    Edited - Way off base.

    See Kronos' post.
    Any video card with a single dual link DVI port should be able to drive a high resolution monitor.

    [ Edited by Jim 15.04.2012 - 17:00 ]
    "Never attribute to malice what can more readily explained by incompetence"
  • »15.04.12 - 15:06
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  • Moderator
    Kronos
    Posts: 2452 from 2003/2/24
    Having 2 DVI-ports has nothing to do with having DVI-D .....
  • »15.04.12 - 15:28
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  • Jim
  • Yokemate of Keyboards
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    Jim
    Posts: 4977 from 2009/1/28
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    Kronos,
    Quote:

    Well the 9800XT should have DVI-D but isn't fully supported (read no 3D)


    I just looked at my 9800XT DVI port. It would appear to be a dual link DVI-I port.

    So a high resolution monitors could work with the correct drivers.

    [ Edited by Jim 15.04.2012 - 18:00 ]
    "Never attribute to malice what can more readily explained by incompetence"
  • »15.04.12 - 17:04
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  • Moderator
    Miky060
    Posts: 694 from 2003/2/24
    From: ITALY
    I am a bit still confused. I perfectly know that I have no 3D support on the Radeon 9800, but I would like to understand if this board has dual link and would work at 2560x1440 with that monitor under MorphOS or not. Please make me it clear.

    P.S. Andreas MorphOS only see 128MB at the moment, but I already knew it.

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  • »16.04.12 - 05:01
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  • Yokemate of Keyboards
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    Andreas_Wolf
    Posts: 12408 from 2003/5/22
    From: Germany
    > Andreas MorphOS only see 128MB at the moment

    Thanks for confirmation.
  • »16.04.12 - 05:13
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  • Jim
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    Jim
    Posts: 4977 from 2009/1/28
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    Miky060,
    Quote:

    I have no 3D support on the Radeon 9800, but I would like to understand if this board has dual link and would work at 2560x1440 with that monitor under MorphOS or not. Please make me it clear.


    Well Miky,
    I think jacadcaps gave you an answer.

    >I don't think we've ever tested a dual-link dvi - most likely it isn't going to work.

    Maybe that wasn't 100% definitive, but while your card could support it it doesn't sound like it would work.
    "Never attribute to malice what can more readily explained by incompetence"
  • »16.04.12 - 08:46
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  • MorphOS Developer
    jacadcaps
    Posts: 3215 from 2003/3/5
    From: Canada
    Quote:

    I am a bit still confused. I perfectly know that I have no 3D support on the Radeon 9800, but I would like to understand if this board has dual link and would work at 2560x1440 with that monitor under MorphOS or not. Please make me it clear.


    If you put it like that: no, it isn't going to work.
  • »16.04.12 - 14:35
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  • Moderator
    Miky060
    Posts: 694 from 2003/2/24
    From: ITALY
    Ok, I'll no more buy that monitor and stay with my 22"CRT

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  • »16.04.12 - 16:19
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  • Priest of the Order of the Butterfly
    Priest of the Order of the Butterfly
    MarK
    Posts: 641 from 2004/1/25
    From: Prague, The Cz...
    once in past i tried, what resolution will be possible to view on my old 19" crt monitor... with MorphOS 1.4.5: 2560x1582.

    Bye, MarK.
  • »17.04.12 - 10:33
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  • Jim
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    Jim
    Posts: 4977 from 2009/1/28
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    MarK,
    Quote:

    once in past i tried, what resolution will be possible to view on my old 19" crt monitor... with MorphOS 1.4.5: 2560x1582.


    Well Miky, that higher then the 2560 x 1440 resolution of the monitor you mentioned, so I guess the answer is a strong possibly.

    But you're probably still going to need all of the 256MB of VRAM on your 9800, so you may want to wait for the updated R300 drivers.
    "Never attribute to malice what can more readily explained by incompetence"
  • »17.04.12 - 11:22
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  • Priest of the Order of the Butterfly
    Priest of the Order of the Butterfly
    MarK
    Posts: 641 from 2004/1/25
    From: Prague, The Cz...
    Question is, if the dvi can transfer such amount of data without harm, analog VGA can do 'anything', but dvi/hdmi has it's digital limitations... and i'm not sure, if this resolution works with dual-dvi the same way as it does with single dvi... imo, another or improved driver would be needed...

    bye, MarK.
  • »18.04.12 - 09:06
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  • Order of the Butterfly
    Order of the Butterfly
    _ThEcRoW
    Posts: 298 from 2008/10/27
    Are such resolutions pleasant to the eye?. I have watched at a friends home a computer running on a 30 tft and don't get it for a desktop use. Obviusly for watching videos or movies is another thing, but for that you have better hardware.
    Mac Mini G4 1,4ghz 1gb ram & MorphOS 3.11
  • »22.04.12 - 20:51
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