https://bugs.freedesktop.org/show_bug.cgi?id=63935
--- Comment #20 from Benjamin Lee <ben at b1c1l1.com> --- I am using a monolithic kernel without initrd (CONFIG_DRM_RADEON=y and CONFIG_EXTRA_FIRMWARE) using the exact same vmlinuz file between EFI and BIOS modes, so I don't believe I have a ucode issue since BIOS mode works correctly. RADEON_AUX_SC_CNTL is different between EFI and BIOS emulation: blee at supra ~/tmp $ diff bios.regs efi.regs 8c8 < RADEON_AUX_SC_CNTL 52f7377c --- > RADEON_AUX_SC_CNTL 52f7337c 46,48c46,48 < RADEON_CRTC2_H_TOTAL_DISP 0200000f < RADEON_CRTC2_H_SYNC_STRT_WID 00000000 < RADEON_CRTC2_V_TOTAL_DISP 00000100 --- > RADEON_CRTC2_H_TOTAL_DISP 0000000f > RADEON_CRTC2_H_SYNC_STRT_WID 00003f3f > RADEON_CRTC2_V_TOTAL_DISP 00000000 I built a separate kernel for fglrx and found that RADEON_AUX_SC_CNTL matched the BIOS emulation mode: blee at supra ~/tmp $ diff fglrx.regs bios.regs 46c46 < RADEON_CRTC2_H_TOTAL_DISP 0203000f --- > RADEON_CRTC2_H_TOTAL_DISP 0200000f -- 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/a3c3fa96/attachment-0001.html>
