[Bug 110897] HyperZ is broken for r300 (bad z for some micro and macrotiles?)

https://bugs.freedesktop.org/show_bug.cgi?id=110897

--- Comment #56 from Richard Thier u9vata@gmail.com --- (In reply to cosiekvfj from comment #54)

Created attachment 144558 [details] dmesg log

[ 14.303343] [drm] radeon: 1 quad pipes, 1 z pipes initialized.

This is really interesting! It tells us why it works in your case (the 1 quad pipe is reported "properly"), but I have no idea why it is reported properly.

I see you are using 4.x kernel so there might be changes - or for some reason your card returns proper values from the registers the driver read from and mine does not. Thank you for the information!