[Bug 91861] [Radeon RS780] Blank screen (no signal) on HDMI after boot in 3.15 & later

https://bugzilla.kernel.org/show_bug.cgi?id=91861

Christian König deathsimple@vodafone.de changed:

What |Removed |Added ---------------------------------------------------------------------------- CC| |deathsimple@vodafone.de

--- Comment #5 from Christian König deathsimple@vodafone.de --- (In reply to Mike S. from comment #4)

I am no expert, but looking at the code, a ref_div value of 14 seems wrong. In r600d.h the REF_DIV_MASK is only 3 bits wide, so the max value it should ever be is 7, right?

The REF_DIV_MASK in r600d.h is for the system clock setup, not for the display clock.