Hi all: after many many moons i decided to go Morphos way.

I downloaded and burnt 3.7 iso. Installed in my Powerbook G4 5.6 with 1.67ghz and 1gb ram.

As soon as it started installing, i noticed some kind of corrupted screen display. Many horizontal lines on the right border of the display and on the center.

Machine is working perfect under OSX. Even when i access the 2early menu" of the mac, the screen is perfect.

I have searched everywhere to try to get around this. Downloaded the iso again, tried to find previous Morphos version but couldnt, searched all over the forum to see if somebody else had similar issue but nothing found.

Tried to change some graphic config, but everything has the same problem

I attach some pics if somebody can help me on this, it will be much apreciatted.

Kind Regards,

Sebastian

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I know tip which worked earlier morpbhos with radeon 7000 but dont anymore. I dont know work or not this graphics hardware what you use.

Thanks for the reply. So basically, you mean that my graphics card in this Powerbook is not compatible with Morphos?

This looks like the display panel has been replaced in this PowerBook5,6. The native panel resolution is 1280x854 usually.
The MorphOS driver doesn't support modified panels in any of the PowerBook laptops.

I thought because of http://morphos.de/releasenotes/3.5 :
Enabled non-native resolutions on the 17'' (5,7 and 5,9) PowerBooks.
and
Added some dynamic bandwidth adjustment code that should fix some visual artefacts noticed on R300 based graphic cards for higher resolutions

it should work to replace the internal display. Didn't I read from someone that he replaced it by a higher resoluted panel?

I do get some random artifacting if I turn off "enhanced display", but once I turn it back on, then everything looks good. Older versions of MOS I would get a really wavy display on my G5 using an actual 9500 or 9650 (I forget which), but the most recent 3.7 fixed it. :)

> tried to find previous Morphos version but couldnt

They are all online. Just change the file name in the download URL to reflect the version you want and off you go.

Thank you very much for all the replies, and please excuse my total ignorance using Morphos.

Even tough im a long Amiga user, im doing my first things with Morphos.

If i understand correctly, i have a useless machine? Am i right? Its almost impossible to get a replacement display here, and to find another G4 in good condition as this one...forget about it, how lucky i am :(

BTW, my mistake, model of this Powerbook is 5.7 , not 5.6. Does it change anything?

And you mean that previous owner changed the original display and put another which is not 100% compatible with Morphos?

Display is RV350/M10 (Mobility Radeon 9600 Pro Turbo) (0x4e50) with 128 VRAM, dont know if this additional info is any help or is this a case closed?

Thanks again

Sebastian

1440x900 os the native resolution of the 17" 5.7 PowerBook so it's quite likely that it's still the orginal display from 2005 in there.

1440x900 on a 5.6 (15") would suggest that someone fixed the diplay form a 5.8 (also 15") in there so that where you got pega-1 confused.

Seems like either your display or GPU is going the way of the Dodo, and there is very little you can do about it ( the artefacts do look a bit like the ones I've seen on a 5.7 before I replaced the TFT with one ripped from a 5.5, so changing the display might just fix your issues).

The numbers you posted refer to the GPU soldered on the mobo, there is about 0 chance that anybody replaced it with anything else.

[ Edited by Kronos 14.10.2014 - 23:49 ]

Quote:

i've bought a 5,7 PowerBook and its got a HiRes Display with 1680x1050. I won't get any picture. Right after starting from cd the screen will "burn" from grey into black. Still i'll hear the morphos jingle after a while, so the system is running but just without display. Is there anything i can do?

The machine is from 2006, so i think its one of those models where Apple used everything they had. Panel was never changed on this machine.

[ Edited by Cego 16.01.2016 - 15:51 ]

Enter to boot menu Morphos (LMB or F1).
Key "V" changes the screen between native display and VGA (640x480)
Choice start Morphos in screen VGA

early startup doesnt work neither on G5 nor PB

Parameter "BM" for boot.img

its still the same. screen will burn up. i wrote Frank Mariak an email. maybe he's willing to help. In the other case i'll sell the machine.

I think the preowner had a faulty display once and the people at apple service replaced it directly with the hires one. I think general support for all panels on all supported PBs would be nice. Shouldnt be hard to implement right, as MorphOS already supports the lowres und hires displays?

Try with external monitor.
Remember, PB must be close.

external display wont work as i only have HDMI adaptors. and its not really a solution as i want a mobile machine not attached to an external display.

My Powerbook has a high-res one and it works just fine. So it does sound like something is wrong. I think you should try to find some DVI cables and try the external monitor. If that works, then it's the display that's faulty.

You can also try to use the install CD and see if it boots. If it does it might be a setting that has gone wrong somewhere.

Quote:

I'm quite sure that it was changed at some time, as Apple discontinued the 5.7 october 05.

Maybe it was send back with a damaged screen and was resold as refurbished with the HighRes screen.

Maybe it was repaired under warranty, or maybe a previous owner just fiddled with it himself.

the preowner said that this machine was never modified. maybe apple took the Last avaulable stock parts and built mixed machines.