Problem running copper master demo on A1200

whitebird · 21 April 2014, 00:45

Hello,

I tried the HD version of copper master demo on A1200, but experienced very strange behavior : the display was getting completely out of sync and only grayscale picture was visible. The Amiga was connected through composite video, and it looked like only the luma component was present. Also the display was constanstly getting out of sync with some diagonal distorsion of the picture. Music was OK.

Everything looks like if there were some hardware problem with the Amiga but other demos are running perfectly well.

The Amiga is basic A1200 with only HD as an upgrade.

Galahad/FLT · 21 April 2014, 00:52

Have you tried the WHDload version?

whitebird · 21 April 2014, 12:10

Yes I am running the WHDload version. I am asking myself, if it should not be a resolution setup problem because it is started from the workench and perhaps the resolution is not changed ithin the demo.

UberFreak · 22 April 2014, 20:58

I'm getting the same problem on my A1200 and A4000.
Works fine on my A600.

john1979 · 22 April 2014, 22:13

My setup:
PAL A1200 + 8mb fast
Classic WB in normal resolution
WHDload 17.2
Copper master from here:
http://aminet.net/package/demo/funet/Coppermaster
V1.0 Slave from WHDload site

Demo ran fine all the way through. Not seen it before, very impressive.

Hewitson · 24 April 2014, 02:48

Quote:

Originally Posted by john1979

Demo ran fine all the way through. Not seen it before, very impressive.

It sure is. Love the music on it too, this is one that deserves to be played LOUD!

Apollo · 24 April 2014, 09:59

One of my favourite demos. Always had a crush on copper-demos

then: its from Corsair!

whitebird · 24 April 2014, 11:24

Thank you UberFreak for letting me know I am not alone with this problem. I will try a different source for the demo, perhaps the bug concerns only certain revisions of the A1200/A4000 chipset.

john1979 · 24 April 2014, 11:33

The only version you need is the one from Aminet I linked above. If you read the WHDload info file, that is the only version the slave supports. (info mentions an ftp site, but the file that was on the ftp is identical the aminet one)

If you've tried that one and it still doesn't work then my guess is something in your setup is causing a conflict.

You have a vanilla 1200 with no extra ram? Are you running ClassicWB or something else?

whitebird · 11 August 2014, 10:56

That's incredible : the problem happens only on the composite output. When I connect a TV to the RGB output and a monitor on the composite jack, it runs normally on the TV but the image is out of sync on the composite.

It is not a hardware problem because everything else displays normally.

It's probably due to the very special use of the copper in this demo.

StingRay · 11 August 2014, 12:41

This sounds like a problem I once experienced when I coded the Twenty demo and then gave it to the party organisers for capturing. The capturing hardware couldn't handle the demo at all and lost sync. Reason for this was that I accidentally set the SOGEN bit in bplcon2. I suppose it's the same problem with Copper Master too.

StingRay · 12 August 2014, 07:16

Looks like I was right, the demo sets the SOGEN bit in Bplcon2:

Code:

	move.w	#$ff,$104(a6)

This line of code causes the trouble!

StingRay · 12 August 2014, 11:43

I have decided to update the WHDLoad version (the old patch has several other problems too). The updated version which fixes the Bplcon2 bug and other things should be available this evening or tomorrow.

Galahad/FLT · 12 August 2014, 19:29

Probably would have been nice to ask me first eh?

I'll not make a big deal about it, but wasn't given the opportunity to sort it.

StingRay · 12 August 2014, 19:56

Guess why I posted publically here in this thread. Besides, I know exactly what the problem is and how to fix it so I don't think it's a big deal indeed.

StingRay · 12 August 2014, 20:33

The updated Copper Master patch can be found on the WHDLoad site now. The display problems should be fixed and some other improvements have been made too (blitter wait patches disabled on 68000 machines unless CUSTOM1 is used to force them, 68000 quit key support, source included etc.).

Galahad/FLT · 12 August 2014, 22:43

Quote:

Originally Posted by StingRay

Guess why I posted publically here in this thread. Besides, I know exactly what the problem is and how to fix it so I don't think it's a big deal indeed.

Private message, Facebook, email.... probably all MUCH better ways to get my attention

I'm pretty sure I could have figured out how to fix it as well..... given the headsup that it needed fixing of course

StingRay · 13 August 2014, 07:11

Quote:

Originally Posted by Galahad/FLT

I'm pretty sure I could have figured out how to fix it as well..... given the headsup that it needed fixing of course

Well, the thread was opened in April. I saw it 2 days ago, checked the demo and fixed the patch, what's the problem?

Galahad/FLT · 13 August 2014, 21:08

Quote:

Originally Posted by StingRay

Well, the thread was opened in April. I saw it 2 days ago, checked the demo and fixed the patch, what's the problem?

I think I've made myself clear mate, please let me know if I haven't

StingRay · 14 August 2014, 06:47

I don't discuss this any further, demo is fixed and should run fine now.

Quote:

I'm pretty sure I could have figured out how to fix it as well..... given the headsup that it needed fixing of course

Regarding this, you knew since April (as you have posted here in this thread) that there was a problem so you could have fixed it as well. So I really do not see any problem when I do it some months later!

Anyway, as said, I don't discuss this any further.

21 April 2014, 00:45	#1
whitebird Registered User Join Date: May 2006 Location: France Age: 48 Posts: 211	Problem running copper master demo on A1200 Hello, I tried the HD version of copper master demo on A1200, but experienced very strange behavior : the display was getting completely out of sync and only grayscale picture was visible. The Amiga was connected through composite video, and it looked like only the luma component was present. Also the display was constanstly getting out of sync with some diagonal distorsion of the picture. Music was OK. Everything looks like if there were some hardware problem with the Amiga but other demos are running perfectly well. The Amiga is basic A1200 with only HD as an upgrade.

12 August 2014, 07:16	#12
StingRay move.l #$c0ff33,throat Join Date: Dec 2005 Location: Berlin/Joymoney Posts: 6,863	Looks like I was right, the demo sets the SOGEN bit in Bplcon2: Code: move.w #$ff,$104(a6) This line of code causes the trouble!

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21 April 2014, 00:52	#2
Galahad/FLT Going nowhere Join Date: Oct 2001 Location: United Kingdom Age: 50 Posts: 8,986	Have you tried the WHDload version?

21 April 2014, 12:10	#3
whitebird Registered User Join Date: May 2006 Location: France Age: 48 Posts: 211	Yes I am running the WHDload version. I am asking myself, if it should not be a resolution setup problem because it is started from the workench and perhaps the resolution is not changed ithin the demo.

22 April 2014, 20:58	#4
UberFreak Registered User Join Date: Sep 2009 Location: the world Posts: 439	I'm getting the same problem on my A1200 and A4000. Works fine on my A600.

22 April 2014, 22:13	#5
john1979 Registered User Join Date: Jun 2012 Location: UK Age: 44 Posts: 748	My setup: PAL A1200 + 8mb fast Classic WB in normal resolution WHDload 17.2 Copper master from here: http://aminet.net/package/demo/funet/Coppermaster V1.0 Slave from WHDload site Demo ran fine all the way through. Not seen it before, very impressive.

24 April 2014, 09:59	#7
Apollo Registered User Join Date: Sep 2008 Location: Germany Age: 49 Posts: 137	One of my favourite demos. Always had a crush on copper-demos then: its from Corsair!

24 April 2014, 11:24	#8
whitebird Registered User Join Date: May 2006 Location: France Age: 48 Posts: 211	Thank you UberFreak for letting me know I am not alone with this problem. I will try a different source for the demo, perhaps the bug concerns only certain revisions of the A1200/A4000 chipset.

24 April 2014, 11:33	#9
john1979 Registered User Join Date: Jun 2012 Location: UK Age: 44 Posts: 748	The only version you need is the one from Aminet I linked above. If you read the WHDload info file, that is the only version the slave supports. (info mentions an ftp site, but the file that was on the ftp is identical the aminet one) If you've tried that one and it still doesn't work then my guess is something in your setup is causing a conflict. You have a vanilla 1200 with no extra ram? Are you running ClassicWB or something else?

11 August 2014, 10:56	#10
whitebird Registered User Join Date: May 2006 Location: France Age: 48 Posts: 211	That's incredible : the problem happens only on the composite output. When I connect a TV to the RGB output and a monitor on the composite jack, it runs normally on the TV but the image is out of sync on the composite. It is not a hardware problem because everything else displays normally. It's probably due to the very special use of the copper in this demo.

11 August 2014, 12:41	#11
StingRay move.l #$c0ff33,throat Join Date: Dec 2005 Location: Berlin/Joymoney Posts: 6,863	This sounds like a problem I once experienced when I coded the Twenty demo and then gave it to the party organisers for capturing. The capturing hardware couldn't handle the demo at all and lost sync. Reason for this was that I accidentally set the SOGEN bit in bplcon2. I suppose it's the same problem with Copper Master too.

12 August 2014, 11:43	#13
StingRay move.l #$c0ff33,throat Join Date: Dec 2005 Location: Berlin/Joymoney Posts: 6,863	I have decided to update the WHDLoad version (the old patch has several other problems too). The updated version which fixes the Bplcon2 bug and other things should be available this evening or tomorrow.

12 August 2014, 19:29	#14
Galahad/FLT Going nowhere Join Date: Oct 2001 Location: United Kingdom Age: 50 Posts: 8,986	Probably would have been nice to ask me first eh? I'll not make a big deal about it, but wasn't given the opportunity to sort it.

12 August 2014, 19:56	#15
StingRay move.l #$c0ff33,throat Join Date: Dec 2005 Location: Berlin/Joymoney Posts: 6,863	Guess why I posted publically here in this thread. Besides, I know exactly what the problem is and how to fix it so I don't think it's a big deal indeed.

12 August 2014, 20:33	#16
StingRay move.l #$c0ff33,throat Join Date: Dec 2005 Location: Berlin/Joymoney Posts: 6,863	The updated Copper Master patch can be found on the WHDLoad site now. The display problems should be fixed and some other improvements have been made too (blitter wait patches disabled on 68000 machines unless CUSTOM1 is used to force them, 68000 quit key support, source included etc.).

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