Bug#782058: Pegasos II: installer boots up to 'returning from prom_init'
Control: reopen -1
Hi!
On 04/08/2015 09:51 PM, Milan Kupcevic wrote:
> In Wheezy and in Jessie RC1 radenfb was compiled in the kernel itself
> while debian installer worked fine on this machine.
Well, yes. As you could see from the bug report you linked above,
compiling radeonfb into the kernel broke X on basically all Radeon
cards.
The reason is that the radeon KMS module does not work once radoenfb
has been loaded once. Even if you unload radeonfb later, the radeon
module will still refuse to work meaning X will not be usable.
If you want to use X, you **have** to use the radeon KMS driver as
the xf86-video-radeon driver does no longer support UMS modesetting
which means no matter what you do, you will **never** be able to run
X once radeonfb is loaded until next reboot.
> Neither radeon nor radeonfb driver is included in RC2 debian installer.
Well, yes, we forgot to include radeon, true.
> OpenFirmware frame buffer never worked on Pegasos machines so I had to
> use serial port to install RC2. After successful installation, the
> machine boots up and uses radeon KMS installed on its HD.
Alright, then your fix was wrong. We should have included radeon,
**not** the deprecated radeonfb driver which does no longer work
with X and will probably removed from the kernel at some point.
> Whether we want to include radeonfb module or radeon KMS module in
> debian installer is question open to discussion.
Well, I think this can be answered straight-forward: radeonfb is the
wrong solution as radeonfb does not support X which means you
can use the text-based installer only. But I guess you never tested
that as you stated in your bug report.
The proper fix for your problem is not to revert my previous fix
but to use the proper driver, thus reopening.
Cheers,
Adrian
--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer - glaubitz@debian.org
`. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
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