linux-kernel - Re: Radeon RV100 init fails with specific card+mobo

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Date:	Fri, 1 Feb 2013 17:26:43 +0200 (EET)
From:	Meelis Roos <mroos@...ux.ee>
To:	Jerome Glisse <j.glisse@...il.com>
cc:	Alex Deucher <alexander.deucher@....com>,
	Linux Kernel list <linux-kernel@...r.kernel.org>,
	dri-devel@...ts.freedesktop.org
Subject: Re: Radeon RV100 init fails with specific card+mobo - IRQ problem

> > Adding some printks reveals it calls
> > r100_init() -> radeon_irq_kms_init() -> drm_irq_install() ->
> > drm_dev_to_irq() and that fails. So no IRQ, no KMS.
> >
> > lspci does not show Interrupt like on some other PCI devices.
> > /proc/interrupts obviously does not contain the irq since we do not
> > register any yet.
> >
> > There is no BIOS option of "Enable IRQ for VGA" or similar (BIOS is
> > latest). Could this be the problem?
> >
> > What can I do to get KMS working on this computer?
> >
> > --
> > Meelis Roos (mroos@...ux.ee)
> 
> Try booting with radeon.agp_mode=-1

radeon: `-1' invalid for parameter `agp_mode'

-- 
Meelis Roos (mroos@...ux.ee)
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