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Date: Sun, 30 Aug 2015 22:51:57 +0200 (CEST)
From: Peter Weilbacher <newsspam@Weilbacher.org>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] Problems booting vanilla kernel 4.1.x
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Hi Fernando,

On Sun, 30 Aug 2015, Fernando Rodriguez wrote:

> 1. Add loglevel=7 to your kernel parameters and see what it prints before it
> hangs.

That helped, it showed me something about drm, so...

> 3. From your kernel parameters I assume you're using the radeon free driver
> right? If that's the case disable it (don't compile it in or just delete the
> module) and try to boot wiith a framebuffer.

... this was a good suggestion. Switching off DRM/Radeon gets me a
kernel that boots. However, with that config I cannot run X (which then
complains about missing kernel mode switching). If I follow
wiki.gentoo.org/wiki/Xorg/Guide#Kernel_modesetting I again arrive at the
kernel settings that I previously had and which didn't work with 4.1.x.

Any more suggestions?
   Peter.