Hi,
On 26 Jan 2021, at 15:24, luigi burdo wrote:
i had been test linux with G5 Quad . Quadro 7800Gtx in 16x slot,
radeonhd on 8x slot.
Result, it work with mesa 3D enabled on 4650, 5450, 6570, and R5 220.
only 2D working with SI cards 7750, r7 250 because mesa crash for
endianess someware.
For have the PC bios card working you need 2 Monitors. one monitor for
the apple firmaware gpu and one for the "pc firmware gpu".
This is a video of my g5 with Debian Port (thanx Adrian Glubitz) and
radeonhd 6570 https://www.youtube.com/watch?v=QsB5xlLyZwE&t
Ciao
Luigi
________________________________
Da: John Paul Adrian Glaubitz <glaub...@physik.fu-berlin.de>
Inviato: martedì 26 gennaio 2021 15:14
A: Linux User #330250 <linuxuser330...@gmx.net>
Cc: Johannes Brakensiek <m...@codingpastor.de>;
debian-powerpc@lists.debian.org <debian-powerpc@lists.debian.org>
Oggetto: Re: Radeon HD 5770
Hi!
On 1/26/21 3:06 PM, Linux User #330250 wrote:
If the card doesn't have a Firmware with FCode for the Open Firmware
of
the Power Mac, it's won't be possible to see anything prior to the
Linux
boot, where Linux initializes the card using the PC-VideoBIOS.
(...)
The problem is that without an FCode graphics ROM you also don't get
any
error messages, neither from the Open Firmware (like when it doesn't
find a bootable operating system: the folder symbol with the question
mark in it) or from the early kernel. (early printk)
I would probably just use a serial console for the boot sequence.
Adrian
thank you for all your replys. Sounds as if it works if I’ve already
got a working system (which I have). And it seems to be even easier when
using both graphics cards in parallel.
I did not know I can use a serial console with a G5. Going to
investigate that as well.
Thanks
Johannes
