radeon and radeonhd are ddx drivers... IF you use KMS then they do not handle modesetting.
mesa or gallium3d handle 3d drivers
dri/drm handle kernel drivers.
That's either a spambot or someone pretending to be a spambot. The post was a direct copy of a question from the first page of the thread.
If you hit "Reply with quote", the quote will usually include three "image" URL:s. The bot has evolved somewhat. A month or so ago it copied one line only. Then you could use " View Forum Posts" for the user to see the hidden URL:s but now it copies more lines so the preview won't show the URL:s.
I'm reporting those I discover but admins/mods are asleep.
The spambot is capable of posting proper URLs when copying other's posts so I lean towards badly formatted URLs.
The "official" driver is not anymore the radeonhd but the radeon driver (it's probably that one you use)
The atombios is a set of memory tables (stored in the ROM associated to the gpu chip). It includes a fully executable byte code.
It's main purpose is to be customized by board manufacturers in order to abstract away the details of their board for the OS driver. Yes, the OS driver cannot reasonnably deal with all the customisations of the board manufacturers.
On AMD GPU, the atombios is also in charge of DCE (Display Control Engine) programming. Basically, when you want to perform operations on this silicium block, you would have to interpret the appropriate atombios byte code.
Atombios is ACPI for AMD's GPU board.
Moreover, I have seen some infos on AMD's Graphics Core Next (HD79xx), and we don't know what will happen to the atombios (and DCE) since this is a huge architectural change scheduled for next year.
Hey, I wrote that first. Die spambot die !
That atombios function is liting display device bits in s0 s3 and s6.
I bet each register target a specific state on the display path.
What are they?
(s6 means the path is doing memory request, related to the atombios EnableCRTCMemReqs command table?)
Like the dpms and crtc bits... are they actually used from dce4/5?