The display engine didn't support it.
Fixes display corruption with options "TearFree" and "ShadowPrimary" (and rotation or transforms with current xserver) on pre-R600.
6d91fb4 Don't enable micro-tiling for scanout buffers on pre-R600
src/drmmode_display.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
Upstream: cgit.freedesktop.org