I have had to stay for years with fglrx until I could switch to radeon, but you might be able to switch this year, who knows? Just guessing, mind you...
Debian stable (lenny is the current stable) only gets updates for security fixes and bugs. No new functionality is supposed to go in, that's why it's called stable.
The UMS drivers have basic support for lowering the engine clock and PCIE lanes either statically, or dynamically during DPMS on/off. The current KMS patches are here:
All radeons should be supported.
I've got a Ati Mobility HD 3450.
Will these patches be merged into mainline 2.6.33? Are they stable?
What does 'dynamically during DPMS on/off' mean? Does it mean that I need to turn off my monitor signal via DPMS to clock the card down or is there a separate control?
There's another issue I'd like to ask about, please bear with me on this one. I've got two cards in my notebook (Ati 3450 and Intel 4500MHD). The computer works in two modes:
- Discrete only - only the Ati card is available on the bus and everything works as usual
- Switchable mode - both cards are initially available on the bus. VGA display and internal LCD are accessible from the Intel card. Currently (no KMS in intel, fglrx for ATI) everything works ok. The framebuffer is initialized to the Intel card and I can disable the Ati card via a vendor-specific ACPI call (Lenovo U330) made from a custom-made kernel module, which is loaded before X starts. At the time X starts everything is fine and dandy: it can only see the Intel card and I can happily save A-LOT of working on the Intel card only (Ati+Intel on is 21W, Intel only is 13W).
Now I can ask my question: will using Ati KMS and Intel KMS somehow mess up my setting? I fear that at kernel load, the Intel KMS will try to initialize the display, but the Ati KMS would also be loaded. Will they conflict with each other? Will I be able to unload Ati modules later on in userspace and load my Ati-turn-off module?
Sorry if this is a bit off topic.
So in 2.6.34 there will be the same support for the X600 that radeon-git without KMS offers now? ;-)
Great work btw, I would have never thought I would get radeon working this good on this old laptop of mine after so many years. And no, this is not meant ironically.
But no reports of "OMG, it fried my laptop"? ;)Quote:
They work, although some users report a flash on the screen when the clocks change.
If I can unload it and it'll revert all the changes, it would do :) However, I can't blacklist, since I'd like to use the radeon drm whenever I run in "Discrete only" mode.Quote:
You can unload the radeon drm module if it loads or blacklist it so it doesn't load in the first place if you don't want to load it.
Thanks for your replies, they were very informative.