@Krisz
Write what model/brand of keyboard and mouse you are using and to which port you are connecting these devices. Have you tried using a different keyboard and mouse? I also have one Logitech mouse that behaves just like yours. Despite the black screen, do you hear a jingle when starting the system from CD?
Btw, my G5 11.2 has problems with the USB port on the front and it doesn't work more often than it does.

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It was my fault
I tried it with another DVI-VGA adapter and it worked immediately
It's interesting because the nvidia video card has the same DVI connector and there is picture with the adapter I used so far
With the new adapter there is a picture on both the radeon and nvidia cards!
However, I still don't know the answer to why the keyboard and mouse don't work in the boot menu

Could there be a problem if I leave the nvidia card in the computer?
Does not interfere with MorphOS operation?
One more thing
while loading MorphOS it says that there is 1.7GB of ram in the machine and in fact there is 3GB

> How can you design a machine that won't accept any card

When Apple designed the PowerMac G5, they could have equipped OpenFirmware with an x86 emulator. I guess they didn't for marketing reasons and also because they released their own graphics cards and because they were big enough for 3rd parties to release specific graphics cards for their machines.

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There is no brand name on the keyboard, just Spirit Of Gamer
The mouse is some cheap wireless Chinese product
Both have been working flawlessly on MacPro 5.1 for years
I tried both the front and back connectors!

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1.7GB is the max. MorphOS can use/sees.

As for the kbd, is this by any chance a wireless combo with some extra features? Like connecting to more than 1 dongle or so.

When in question (and no Apple kbd at hand) stick to wired KBD and mouse (or at least ones with dumb dongles).

> Could there be a problem if I leave the nvidia card in the computer?

Only with your electricity bill ;-)

> Does not interfere with MorphOS operation?

No.

> MorphOS [...] says that there is 1.7GB of ram in the machine
> and in fact there is 3GB

MorphOS can use only 31 bit (= 2 GiB) minus some IO address space, which results in about 1.7 GiB.

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Fortunately, the video card problem is solved!
It crossed my mind that maybe the problem was with the DVI-VGA adapter and it was confirmed
the only interesting thing is that the Nvidia card uses the same DVI connector as the Radeon and Nvidia had no problems with the adapter I used so far

>>> How can you design a machine that won't accept any card

>> When Apple designed the PowerMac G5, they could have equipped
>> OpenFirmware with an x86 emulator. [...]

> Fortunately, the video card problem is solved!

That's good to hear. And it was clear from the start that it wasn't a problem with the PowerMac G5's design ;-)

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Fortunately, it was resolved
however, in my opinion, Apple was very cheeky when they designed the Power Mac and Mac Pro machines to only work with Apple-compatible cards, which were also much more expensive than PC cards.

But it's still much cheaper than buying an Amiga computer
Unfortunately, my Pegasos2 has been sitting there for over 10 years since it broke
But everything would be much easier with it
I've just tried a few games and for example the Robinhood demo runs at about the same speed as it did on my pegasos2 at the time
I know the demo version doesn't have the 3D driver
I still need to get a wifi or lan card because I can't install the MorphOS system normally until then

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Thanks

Maybe someday there will be a MOS release that will see more ram :)
I use a mouse that has a usb adapter but I think I should get an Apple keyboard and some kind of wired mouse

The user named Lord76 said that the network works with this card :
TP-Link TG-3468

Is this automatically detected by MorphOS and ready to use or does it need some configuration?

Small update from my side:

Got an HD3650 that kinda works on 3.19, no signal on HDMI or DP just DVI but at least it's a start.

The 1€ AirPort also showed up and with an antenna ripped out of a QuickSilver G4 it does work quite well.
Need to find a solution to secure the card and antenna though.

> The user named Lord76 said that the network works with this card :
> TP-Link TG-3468

This card seems to imply some risk, as some MorphZone users reported success but at least one other user reported fail:

https://morph.zone/modules/newbb_plus/viewtopic.php?forum=11&topic_id=13050&start=7 (#8)
https://morph.zone/modules/newbb_plus/viewtopic.php?forum=11&topic_id=12716&start=127 (#128)

An explanation may be that there are several hardware versions of this card with maybe different chipsets, at least one of them compatible and at least one other incompatible.

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Good luck with making your wifi antenna
It's a shame the HDMI output doesn't work, that would be the advantage of the HD card.
I decided to give up the wifi card and buy a regular lan card instead.
I will buy this.: TP-Link TG-3468

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Then I don't know what card I should buy :(

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When testing the card on a PC that HDMI wouldn't go past FullHD, so not much of an advantage.
But the card is "better" than the AGP HD3450 which will do 2560x1440@75Hz so it might be just some stupid firmware lock to avoid higher license fees. DP does go much higher, might even do 4k@60Hz.

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FullHD resolution is more than enough for me
I never set a higher resolution on my MacPro either

Now I'm having another headache trying to figure out what network card to get that MOS supports
Finally the video card good and now there's another obstacle

Here on the forum a user recommended this card : AW-GE870 B/G PCI-E
if I buy such a card, the MOS system will immediately recognize it without any tricks, right?if I buy such a card, the MOS system will immediately recognize it without any tricks, right?

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Under current/recent versions of macOS "resolution" ain't a thing. It just scales text and UI to give you a FullHD like space rendered at the native res of the screen.

In MorphOS setting a 2k or 4k monitor to FullHD means the monitor will do the scaling a far inferior result than rendering native and increasing font sizes.

Since everything bigger than 24" is at least 2k these days (ignoring some weird gaming stuff) support for those resolution is a must.

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I see

I'm going to ignore MOS for a while until I find a working network card
Until then I'll have to deal with my MacPro because after installing OCLP it doesn't want to see Windows in the boot menu for some reason
It seems I'm having no luck with Macs

@Krisz

I use a 4k monitor and a 1080p one with my G5.

You can get decent results with you 4k monitor, but it will take some setting changes under monitors in settings to do so.

I went with 1900x1200 on the 4k, which for a 27" screen and old eyes, gave me the best results.

Chris Edwards had a YT for multiple monitor setup as well.

@matt3

If it is a 4k you should go with FullHD to avoid fractional scaling.

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My monitor supports fullHD resolution and I use this resolution under MOS
with 16-bit color depth
I didn't want to set it to 24-bit because I'm afraid it would result in a performance degradation

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I... really don't think you should hold yourself back like this on a G5 :)

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I don't know
I booted MorphOS from a CD and connected a hard drive with MOS using a dock that I also used on a G4 Mac.
Due to the lack of SDL, I can only test the machine with a few games, and one of them was a car racing game called Torch, which seemed a bit slow to me.
It's also possible that the game isn't optimized properly
I'll only be able to test with more games once I have a working network card