https://bugs.freedesktop.org/show_bug.cgi?id=63935
--- Comment #19 from Alex Deucher <agd5f at yahoo.com> --- (In reply to comment #18) > (In reply to comment #17) > > Make sure you have the updated RLC ucode in addition to the UVD ucode. > > Unfortunately, I can't reproduce this on the UEFI systems I have access to. > > Benjamin and Parag have already indicated which firmware versions they are > using, and I feel it's safe to assume that Christian is also using the > proper versions as well. It's worth double checking. I've forgotten to update my ucode a number of times and run into similar problems. Christian was using out of date ucode and when he fixed it his UEFI system started working fine. We can take a look at register dumps. grab radeonreg: http://cgit.freedesktop.org/~airlied/radeontool/ and dump the regs when booted with legacy vbios vs. UEFI and attach the outputs. boot with legacy bios (as root): radeonreg regs all > legacy.regs boot with UEFI (as root): radeonreg regs all > uefi.regs -- You are receiving this mail because: You are the assignee for the bug. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/dri-devel/attachments/20130516/5b5c0476/attachment.html>