linux-kernel - Re: Regression: Screen turns off when booting in EFI mode

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Message-ID: <20130325235525.GA3423@srcf.ucam.org>
Date:	Mon, 25 Mar 2013 23:55:25 +0000
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Dave Airlie <airlied@...il.com>
Cc:	Mantas Mikulėnas <grawity@...il.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Matthew Garrett <mjg@...hat.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Seth Forshee <seth.forshee@...onical.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Ben Skeggs <skeggsb@...il.com>
Subject: Re: Regression: Screen turns off when booting in EFI mode

On Tue, Mar 26, 2013 at 09:52:14AM +1000, Dave Airlie wrote:
> >>> Because it's the only way to get the PCI ROM in some cases, like on
> >>> pretty much all Apples with Radeons. Only using it if we have no other
> >>> options probably makes sense, though. Something like this (entirely
> >>> untested)?
> >>
> >> This looks reasonable. Mantas?
> >
> > It compiles, boots, and even makes the graphics card work again.
> > So it looks good to me.
> 
> https://bugzilla.redhat.com/show_bug.cgi?id=927451
> 
> popped up sounds like a regression caused by this.

Sigh. I guess we need to figure out where it thinks it's getting that 
image from. The alternative is basically to go back to what Linus 
suggested, remove this from pci_map_rom() and add an explicit lookup to 
the video drivers.

-- 
Matthew Garrett | mjg59@...f.ucam.org
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