Bug#826629: [powerpc] fb-modules package : add radeon driver

From	Mathieu Malaterre <malat@debian.org>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#826629: [powerpc] fb-modules package : add radeon driver
Date	2016-06-07 11:10 +0200
Message-ID	<rHlbk-Mt-33@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

Cross-posted to 2 groups.

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Package: src:linux
Version: 4.5.5-1

This is an attempt to resolve the symptoms from #825840 (1). As
explain in this bug report, debian-installer is trying to use radeonfb
on PowerPC. However two things happen:

1. At startup Framebuffer is setup by Open Firmware (OFfb)
2. radeonfb currently does not support 'unloading' existing /dev/fb0

While it would make sense for radeonfb to take over Open Firmware, it
is currently not implemented (2). So an alternate solution would be to
use the 'radeon' driver instead.

I have been reading #782058 and #748398, and if I understand correctly
debian-installer does not *explicitly* load 'radeonfb', instead this
is done by `fb-modules-4.5.0-2-powerpc-di`. In which case I'd like to
request that `radeon` be also added to the list of module for PowerPC.

I am not clear if this will be enough but at least this could be a
step forward. Meanwhile I'll continue working on OFfb to get a
non-inverted display (this is a different issue).

---

References:
1. https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=825840#59
2. https://lists.freedesktop.org/archives/mesa-dev/2016-June/119574.html

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Bug#826629: [powerpc] fb-modules package : add radeon driver Mathieu Malaterre <malat@debian.org> - 2016-06-07 11:10 +0200
  Processed: Re: Bug#826629: [powerpc] fb-modules package : add  radeon driver owner@bugs.debian.org (Debian Bug Tracking System) - 2016-06-07 12:20 +0200
  Bug#826629: [powerpc] fb-modules package : add radeon driver Ben Hutchings <ben@decadent.org.uk> - 2016-06-07 12:20 +0200
    Bug#826629: [powerpc] fb-modules package : add radeon driver Mathieu Malaterre <malat@debian.org> - 2016-06-07 14:40 +0200
  Processed: Re: Bug#826629: Possible offb unload fix. owner@bugs.debian.org (Debian Bug Tracking System) - 2016-10-05 18:40 +0200

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