Thread (19 messages) 19 messages, 7 authors, 2004-09-20

Re: [Linux-fbdev-devel] fbdev broken in current bk for PPC

From: David Eger <hidden>
Date: 2004-09-10 23:40:47
Also in: lkml

On Sat, Sep 11, 2004 at 05:27:05AM +0800, Antonino A. Daplas wrote:
On Saturday 11 September 2004 01:52, David Eger wrote:
quoted
On Fri, Sep 10, 2004 at 01:28:57PM +0800, Antonino A. Daplas wrote:
quoted
On Friday 10 September 2004 10:23, Benjamin Herrenschmidt wrote:
quoted
Recent changes upstream are breaking fbdev on pmacs.

From what I see, it seems that offb is kicking in by default, reserves
the mmio regions, and then whatever chip driver loads can't access
them.

offb is supposed to be a "fallback" driver in case no fbdev is taking
over, it should also be "forced" in with video=ofonly kernel command
line. This logic has been broken.
I *hope* this is what I'm seeing with recent kernels, though I
have my doubts....  What I *do* know is that with recent bk snapshots
(post bk-1.2115) I have the following:  radeonfb seems to load, but when I
try to load X, my y-resolution seems to be half of what it ought to be...
X-fbdev, or X + native radeon driver?  Do still get a framebuffer console?
Any other fb apps you have that's also broken?
Hold my tongue: BenH's latest patch (already in mainline) fixes it for me.

-David
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