Re: Fw: [Bugme-new] [Bug 4217] New: radeonfb makes system hang and LCD "burn"

On Tue, 2005-02-15 at 22:42 +0100, Marc Poulhiès wrote:

Benjamin Herrenschmidt [off-list ref] writes:

quoted

On Tue, 2005-02-15 at 12:15 -0800, Andrew Morton wrote:

quoted

Begin forwarded message:

Date: Tue, 15 Feb 2005 12:03:52 -0800
From: bugme-daemon@osdl.org
To: bugme-new@lists.osdl.org
Subject: [Bugme-new] [Bug 4217] New: radeonfb makes system hang and LCD "burn"

What if you load the module with option "default_dynclk=-1" ?

(Or if radeonfb is built-in, do radeonfb.default_dynclk=-1 on the kernel
command line). 

Seems to work a bit more. Module loads correctly, system is still
responding, but display is not correct. System caret seems to be the
only thing displayed, and it moves when I type, but no characters get
displayed.

Do you need some more informations? (like debug output) 

Try building radeonfb in the kernel and booting with
radeonfb.default_dynclk=-1, let me know if that works. fbdev's in
modules have always been sort-of dodgy....

The "dynclk" thing has issues, the upstream code from ATI has some bugs
plus there is something weird going on which I suspect might be a
miscompile of a bit of code in there. I'll send a patch working around
that today.

Ben.




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