Mac OS X on x86 Hardware 2008–2024 Technical Archive
InfiniteMac OSx86 › Lion to Catalina (10.7–10.15) › 2x Radeon 6850 cards in 10.7.1
5,870 reads · 2011-09-02 – 2011-12-17
Note Lion – Catalina ATI Radeon

2x Radeon 6850 cards in 10.7.1

I'm running 10.7.1 without any problems using a Radeon 6850. I recently purchased a second Radeon 6850 with the hope of adding more displays. With both cards the system hangs during boot at the gray Apple screen. It's safe to say there is…

Primary Author
@foodfightr Published 2011-09-02
Collection
Lion to Catalina (10.7–10.15)
Archival Footprint
5,870 historical reads · 1 curated field notes (from 2 dispatches) · 2011-09-02 – 2011-12-17
Credited Voices (2)
@foodfightr@kato

I'm running 10.7.1 without any problems using a Radeon 6850. I recently purchased a second Radeon 6850 with the hope of adding more displays. With both cards the system hangs during boot at the gray Apple screen. It's safe to say there is no problem with the mobo/card/psu as Windows boots fine.

I tried booting with GraphicsEnabler=Yes which didn't change anything.

Any idea how to get this working? Thanks

Synthesized Community Field Notes

1 technical responses curated from 2 original dispatches

Field Note #1 @kato 2011-12-17

use the command GraphicsEnabler=NO
then edit org.chameleon.Boot.plist GraphicsEnabler=NO

i have a Radeon 6850 HD card and the only way snow leopard will load is with that command
hopes it helps

Sources & Contributor Provenance (2 credited usernames · Thread #7405)
UsernameDossier ContributionDispatchesActive Window
@foodfightrPrimary Author12011-09-02
@katoContributor12011-12-17