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-   -   8-bit mode corrupted (1200TX + Radeon 9200 128MB) (http://eab.abime.net/showthread.php?t=94043)

ShK 01 September 2018 20:20

8-bit mode corrupted (1200TX + Radeon 9200 128MB)
 
Amplifier looks OK in 16/32bit, but all gets corrupted in 8bit mode.

https://s15.postimg.cc/tcuvxorwr/256colors.png

Any ideas why?

indigolemon 01 September 2018 23:11

Do you mean when running an 8-bit screenmode?

ShK 01 September 2018 23:17

yes only in 256 colors screenmode.

indigolemon 01 September 2018 23:27

Hmm, don't think I've used the Radeon in 256 colours, except for games! I'm away til next Saturday, but can try this on my machine then (Same Mediator and G-Card setup).

ShK 01 September 2018 23:29

Thanks! Not sure if this Radeon is broken...

grelbfarlk 02 September 2018 04:04

I would suspect a datatype problem maybe.
And it's only on the Radeon, not AGA 256 colors?

ShK 02 September 2018 06:14

AGA 256 mode is OK, no GFX glitches on Amplifier skin.

I have only RV100 Radeon 7000 PCI card to compare, but I guess there is no 68k driver for it with 1200TX...

nexus 02 September 2018 08:03

could be bad mem on the radeon but odd that you only see on that screenmode maybe try the radeon in a pc see if it happens there
rule out bad hardware

nexus 02 September 2018 08:07

though i have seen radeons do this on pc in vesa mode but be ok when in higher modes in win
maybe bios is corrupt

ShK 03 September 2018 23:56

Quote:

Originally Posted by nexus (Post 1266185)
could be bad mem on the radeon but odd that you only see on that screenmode maybe try the radeon in a pc see if it happens there
rule out bad hardware

Ok, this was a good idea. I finally found a motherboard with a PCI bus. And yes, Radeon is broken.

https://s15.postimg.cc/8lvv5pzln/winxp.png

ShK 19 September 2018 18:37

It was a driver issue!

Radeon.card v2.23 (MM_CD_UP2.5.lha):
https://i.postimg.cc/qvCzsWLW/2.23.png

Radeon.card v2.22 (MM_CD_UP2.4.lha):
https://i.postimg.cc/PqWJcZ04/2.22.png

Old Sapphire was really broken. But it didn't make this 8-bit issue.

Tested now with the 2 new cards:

Sapphire ATI Radeon 9250 128MB
VisionTek ATI Radeon 9250 128MB

Both gives the same results between 2.23 and 2.22 drivers.


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