[Bug 76490] Hang during boot when DPM is on (R9 270X)

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Comment # 100 on bug 76490 from
(In reply to Maxim Sheviakov from comment #99)
> Interesting, but it got flashed 0_0
> Also, the problem is not in VBios or IDs. It's all about memory clock -
> setting a value higher than 1.2GHz (in a quirk) makes the system hang after
> Plymouth/before display server start. So, to my mind we have to do something
> with DPM/PowerPlay code or make some userspace overclock support, as there's
> no other way right now. By the way, is there such a tool that allows to
> overclock memory of the card?

If that worked for you you are lucky, but at least I won't flash a different
BIOS just to _downgrade_ my card, possibly breaking it completely. Alas the
already in place quirk results in exactly the same.

> And yep, with its standard VBios card works with 1050MHz/1.2GHz
> (core/memory) clocks. I'm using those SMC patches + new firmware. Maybe they
> should be sent upstream, even to add that new firmware files and code to use
> them?
The new firmware files are fine for 370X it seems but still need work for 270X.
I guess most 270X users CC in this ticket will happily test possible reworked
ones as soon as they are available and we patiently wait for Alex.


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