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ChrisH
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Re: SAM Users ! Also bad qualitiy on VGA LCD ? Posted on 7-Feb-2009 9:58:31
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Elite Member |
Joined: 30-Jan-2005 Posts: 6679
From: Unknown | | |
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| @Mrodfr Quote:
Playing with DVplayer. Slow down with real widescreen (16/9) DVD movies. No slowdown with little less widescreen format. Used DVPplayer from AOS4.1. 1. DVplayer bug or small CPU ?? |
I think insufficient CPU for the DVplayer executable you have. However this was never designed to run on a Sam440, so possibly it can be optimised to run better (although nothing has been promised). So wait and see on this one.
P.S. I got a horrid VGA when I briefly tested the Sam's VGA output on my dual-input DVI+VGA monitor. DVI is perfect of course _________________ Author of the PortablE programming language. It is pitch black. You are likely to be eaten by a grue... |
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TheDaddy
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Re: SAM Users ! Also bad qualitiy on VGA LCD ? Posted on 7-Feb-2009 10:02:26
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Elite Member |
Joined: 30-Sep-2005 Posts: 4499
From: Quattro Stelle | | |
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| @RockDemon
Hi Rich,
>>What is your case made of? As it's a fanless board a metal (preferably aluminium) case is going to be cooler running than anything made of plastic.
It's naked on the desk...more airflow than that you can't get.
>>You could try putting a case fan in temporarily and see if it helps cool the graphics chip?
I don't see why I should. If you pay that much money I am expecting it to work. _________________ www.loriano.pwp.blueyonder.co.uk |
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TheDaddy
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Re: SAM Users ! Also bad qualitiy on VGA LCD ? Posted on 7-Feb-2009 10:05:03
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Elite Member |
Joined: 30-Sep-2005 Posts: 4499
From: Quattro Stelle | | |
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| @RockDemon
>>Oh and given that they've mentioned the impedance of monitor cables, what sort of VGA cable are you using - I've got a fairly hefty thick cable which i'm assuming implies higher quality. Could that be why i dont see the image ghosting?
I have two SAMs, a first batch one with all the goodies on on it, FPGA etc...and my own, the more recent one and on the SAME monitor through the VGA they display differently.
There is no doubt in my mind that the latest batch has problems. _________________ www.loriano.pwp.blueyonder.co.uk |
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TheDaddy
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Re: SAM Users ! Also bad qualitiy on VGA LCD ? Posted on 7-Feb-2009 10:07:35
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Elite Member |
Joined: 30-Sep-2005 Posts: 4499
From: Quattro Stelle | | |
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| @ChrisH
>>I think you misunderstood RockDemon - he was merely quoting exactly what you said (but without proper quotes). So this was NOT a confirmation of your problem.
Ok. Then it is my SAM then. I am getting a bit fed up. I might just send it back and get a refund. _________________ www.loriano.pwp.blueyonder.co.uk |
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kyle
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Re: SAM Users ! Also bad qualitiy on VGA LCD ? Posted on 7-Feb-2009 10:29:01
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Cult Member |
Joined: 15-Oct-2006 Posts: 866
From: Livorno, Italy | | |
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| @TheDaddy
Where do you buy your Sam? You could contact ACube itself if you buyed it form them. They have no problems to change a defective unit. |
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DaFreak
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Re: SAM Users ! Also bad qualitiy on VGA LCD ? Posted on 7-Feb-2009 10:46:57
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Regular Member |
Joined: 1-May-2005 Posts: 128
From: Berlin, Germany | | |
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| Quote:
kyle wrote: @TheDaddy
Where do you buy your Sam? You could contact ACube itself if you buyed it form them. They have no problems to change a defective unit. |
If somebody completely followed the thread he would recognize that: It's NOT a problem of one or two defect units - it's a problem of the whole latest batch of the board! I doubt they will start an exchange program for the whole batch. Last edited by DaFreak on 07-Feb-2009 at 10:48 AM.
_________________ Sam440ep & AmigaOS4.1 @ Morex 3677 case --- (DaFreak of Liquid Skies & Moods Plateau) |
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ChrisH
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Re: SAM Users ! Also bad qualitiy on VGA LCD ? Posted on 7-Feb-2009 11:25:35
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Elite Member |
Joined: 30-Jan-2005 Posts: 6679
From: Unknown | | |
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| @DaFreak kyle was talking about TheDaddy saying his (DVI?) display goes wonky after 40 minutes showing GL blankers + his gfx chip getting very hot & making nasty noises. This has not been confirmed by anyone else yet. Last edited by ChrisH on 07-Feb-2009 at 12:32 PM. Last edited by ChrisH on 07-Feb-2009 at 11:26 AM.
_________________ Author of the PortablE programming language. It is pitch black. You are likely to be eaten by a grue... |
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TheDaddy
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Re: SAM Users ! Also bad qualitiy on VGA LCD ? Posted on 7-Feb-2009 11:37:57
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Elite Member |
Joined: 30-Sep-2005 Posts: 4499
From: Quattro Stelle | | |
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| @everyone
All I know is this:
On the desk there are two SAMs.
One early batch with all the connectors (FPGA, and various J connectors).
This works fine when connected to a standard SVGA CRT Monitor with ANY DVI-VGA adapter.
This also does NOT display a weird GLMatrix (like a non-tuned in properly TV, all fuzzy) after 40 minutes when connected to a TFT through DVI only.
My own board, more recent, without the FPGA and the various J connectors (same price as the one above) has a poor display when connected to the SAME SVGA CRT monitor with the SAME cable and SAME DVI-VGA adapter.
My own board also displays a fuzzy (non-tuned in properly TV effect) when connected to a TFT through the DVI connector only, after 40 minutes of GLMatrix screensaver.
Now you make the sums.
Last edited by TheDaddy on 07-Feb-2009 at 11:39 AM.
_________________ www.loriano.pwp.blueyonder.co.uk |
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RockDemon
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Re: SAM Users ! Also bad qualitiy on VGA LCD ? Posted on 7-Feb-2009 12:03:01
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Regular Member |
Joined: 7-Jan-2005 Posts: 217
From: leicester, UK | | |
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| @TheDaddy
yes - sorry, i was pointing out that i'd had a similar problem with a pc doing that but the pc had a cooling problem.
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Mrodfr
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Re: SAM Users ! Also bad qualitiy on VGA LCD ? Posted on 7-Feb-2009 12:08:01
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Super Member |
Joined: 28-Jan-2007 Posts: 1396
From: French | | |
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| @TheDaddy
I'm allright with you, the daddy. I haven't tested your blanker problem.
I have just the bad SVGA video problem.
on the MB, missing:
J4 - FPGA J7 - GPIO J8 - JTAG J10 - I2C PORT J27 - ????
On the Acube site, all the connector must be on the MB, read the specs.
I'm not happy because:
1. missing connector on the MB. 2. Bad video signal.
Change the design of the MB and remove connectors give bad signal now with SGVA video. I have baught a SAM MB for the quality of the first feedback in first step for me.
I'm now searching after someone with a spare 16 pins internal to external SVGA ribbon for using the SAM with my CRT monitor.
Honestly, the bad signal push me to not use anymore the SAM actually
NOTE: I will add the number of my MB here to know if first batch or not... Last edited by Mrodfr on 07-Feb-2009 at 12:10 PM.
_________________ BTW, what you have done for the amiga today ????
-A1200+Mediator+VooDoo3+060/50+96mo+SCSI-KIT -SAM440EP-667mhz-on MapowerKC3000+AOS4.1
Amiga Docs Disks Preservation Project |
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A3000T
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Re: SAM Users ! Also bad qualitiy on VGA LCD ? Posted on 7-Feb-2009 12:15:24
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Cult Member |
Joined: 7-Nov-2003 Posts: 633
From: the Netherlands | | |
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| @All
I get the same horrable ringing effect (looks like 15+ echos) other people metioned when using the DVI to VGA adapter. This kind of effects is usually caused by poor quality cables, very long cables and switchboxes and the like. I think the DVI to VGA adapter is to blame for the poor quality VGA output.
I have a problem with DVI output as well. resolutions up to 1440x900 work fine, but high resolutions like 1920x1080 have a lot of random noise in it; it looks like a poorly tuned TV. I tried an other monitor, but that one just goes on standby. A PC with the same cables and monitors works fine.
Can someone with a Sam from the latest batch please test it with a high resolution (like 1920x1080 or 1920x1200) on the DVI output?
Kind regards,
Dennis
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Mrodfr
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Re: SAM Users ! Also bad qualitiy on VGA LCD ? Posted on 7-Feb-2009 12:30:12
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Super Member |
Joined: 28-Jan-2007 Posts: 1396
From: French | | |
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| @all
the DVI2SVGA Acube adaptator have all pins (DVI side minus2).
I have tested with an adapter with maybe half the pins and not work.
I have also seen on the supermarket this morning a DVI2SVGA with ALL pins (DVI side).
Want to know if someone with a SAM (last batch) and a DVI2SVGA adaptator with all pins on DVI side, could test if that resolve the problem or not....
Thanks for the test
_________________ BTW, what you have done for the amiga today ????
-A1200+Mediator+VooDoo3+060/50+96mo+SCSI-KIT -SAM440EP-667mhz-on MapowerKC3000+AOS4.1
Amiga Docs Disks Preservation Project |
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ChrisH
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Re: SAM Users ! Also bad qualitiy on VGA LCD ? Posted on 7-Feb-2009 12:34:27
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Elite Member |
Joined: 30-Jan-2005 Posts: 6679
From: Unknown | | |
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| @TheDaddy Quote:
My own board also displays a fuzzy (non-tuned in properly TV effect) when connected to a TFT through the DVI connector only, after 40 minutes of GLMatrix screensaver. |
As this does not happen with my Sam440, I suspect your board is faulty. Or maybe it is a different batch/revision?_________________ Author of the PortablE programming language. It is pitch black. You are likely to be eaten by a grue... |
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ChrisH
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Re: SAM Users ! Also bad qualitiy on VGA LCD ? Posted on 7-Feb-2009 12:37:15
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Elite Member |
Joined: 30-Jan-2005 Posts: 6679
From: Unknown | | |
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| @Mrodfr TheDaddy has (presumably) tested his ACube DVI-to-SVGA adapters on both his good & his bad Sam440s, and they do not make any difference. Therefore the problem arises on the Sam440 motherboard for the poor VGA quality. Last edited by ChrisH on 07-Feb-2009 at 12:37 PM.
_________________ Author of the PortablE programming language. It is pitch black. You are likely to be eaten by a grue... |
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TheDaddy
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Re: SAM Users ! Also bad qualitiy on VGA LCD ? Posted on 7-Feb-2009 12:42:19
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Elite Member |
Joined: 30-Sep-2005 Posts: 4499
From: Quattro Stelle | | |
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| @Mrodfr
I have tested yet another DVI to VGA (an Apple one) and still the same.
Poor quality on the CRT monitor. Lines, duobling/ghosting effect.
It has got NOTHING to do with cables, cable length or DVI adapters, it's the SAM.
Also, I left the SAM on and went back again after 40-50 minutes with the GLMatrix+CRT monitor and the SAM had frozen completely (this time with the Apple adapter).
On the TFT the GLMatrix gives the fuzzy, non-tuned effect after 4-50 minutes on a CRT it completely freezes after the same amount of time.
_________________ www.loriano.pwp.blueyonder.co.uk |
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TheDaddy
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Re: SAM Users ! Also bad qualitiy on VGA LCD ? Posted on 7-Feb-2009 12:44:31
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Elite Member |
Joined: 30-Sep-2005 Posts: 4499
From: Quattro Stelle | | |
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| @ChrisH
>> I suspect your board is faulty. Or maybe it is a different batch/revision?
I suspect the same. I think something has been done to the latest batch.
The revision is C. _________________ www.loriano.pwp.blueyonder.co.uk |
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TheDaddy
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Re: SAM Users ! Also bad qualitiy on VGA LCD ? Posted on 7-Feb-2009 12:47:31
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Elite Member |
Joined: 30-Sep-2005 Posts: 4499
From: Quattro Stelle | | |
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| @ChrisH
>>TheDaddy has (presumably) tested his ACube DVI-to-SVGA adapters on both his good & his bad Sam440s, and they do not make any difference. Therefore the problem arises on the Sam440 motherboard for the poor VGA quality.
Yes I have tested both boards (the early and the latest batches). The early batch isn't mine and I have returned it to its owner.
So I am left with my own, the latest batch.
I am with you on this. It's clear that the latest batch or my board in particular is not working properly.
Last edited by TheDaddy on 07-Feb-2009 at 12:58 PM.
_________________ www.loriano.pwp.blueyonder.co.uk |
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RockDemon
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Re: SAM Users ! Also bad qualitiy on VGA LCD ? Posted on 7-Feb-2009 13:05:47
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Regular Member |
Joined: 7-Jan-2005 Posts: 217
From: leicester, UK | | |
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| @TheDaddy
I think you should get hold of acube and tell them the exact problems. I'm guessing they'd be keen to make sure you're a happy customer. The bad graphics sounds like it's fairly common thing that people have to work around but the screen blanker problem sounds like a definite hardware fault to me.
Edit : I dont think it's the revision. Mine is C too and doesnt exhibit these problems.
Rich.
Last edited by RockDemon on 07-Feb-2009 at 01:07 PM.
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ChrisH
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Re: SAM Users ! Also bad qualitiy on VGA LCD ? Posted on 7-Feb-2009 17:24:34
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Elite Member |
Joined: 30-Jan-2005 Posts: 6679
From: Unknown | | |
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| @TheDaddy Quote:
GLMatrix+CRT monitor and the SAM had frozen completely |
I think this is a GLMatrix bug, and nothing to do with your Sam440, because I had it freeze on me once after maybe 30 mins (next time it did not freeze, even after leaving it for maybe 1 hour). I did not try it any further.
_________________ Author of the PortablE programming language. It is pitch black. You are likely to be eaten by a grue... |
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Mikey_C
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Re: SAM Users ! Also bad qualitiy on VGA LCD ? Posted on 7-Feb-2009 17:38:27
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Elite Member |
Joined: 7-Mar-2003 Posts: 3060
From: Unknown | | |
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| @all
For what its worth, Trez on #amigaworld irc channel informs me that he has tested the GLMatrix Screensaver on his Sam for over an hour with no ill effects at all.
_________________ No cause is lost if there is but one fool left to fight for it. |
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