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HI,
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 <glaubitz@physik.fu-berlin.de>
Inviato: martedì 26 gennaio 2021 15:14 A: Linux User #330250 <linuxuser330250@gmx.net> Cc: Johannes Brakensiek <ml@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 -- .''`. John Paul Adrian Glaubitz : :' : Debian Developer - glaubitz@debian.org `. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913 |