Tahiti LE is still broken, after 3 years. Not trying to be a dick, but FFS, at this point ALL the other cards based on very similar chips(7950, 7970, 280X) work very well, and yet this one is still broken. I mean really, once you have all the work well done for all similar cards, how can it be so hard to bring this one to life? I just upgraded from a HD4890 to a Tahiti LE card. I did not bother to check how well it is supported under Linux before buying it, because I assumed that all GCN1 cards are very well supported via radeonsi. Now I found out, that my card is probably the only one that is not supported at all, so to say I am mad would be an understatement.