On Saturday 29 September 2007 01:04:13 Benjamin Herrenschmidt wrote: > > On Fri, 2007-09-28 at 23:32 +0200, Michael Buesch wrote: > > Hi, > > > > some time ago I already mailed you about this problem. > > I will quickly describe what's going on, again: > > > > My powerbook boots fine when it's cold. You can work with > > it and you can also run it hot (compile something, etc...). > > But when you try to boot it while it is hot, it will > > automatically shutdown hard inside of the boot process. > > Some part of the hardware is shutting it down. > > This does not happen when it's getting hot _after_ boot. > > Only while boot when it's hot. > > > > I bisected the problem and found out that the following patch > > is responsible for this. Yeah, this sounds a little bit > > crazy, as this patch does not seem to be related to > > this at all. But I confirmed it by booting kernel > > 4f71c5de19c27f2198105d3b26b398494d5c353b > > That kernel triggered the bug. Then I patch -R the patch below > > and it booted properly, even when hot. I also rechecked > > that it really was hot enough to trigger the event by > > immediately rebooting into a known bad kernel, that immediately > > shut down the pbook, as expected. > > So I'm pretty sure it's the patch below causing this weird > > behaviour. Any idea why? > > This is very strange... Can you try also clearing VGA_DDC_CLK_OUT_EN and > VGA_DDC_DATA_OUT_EN and the same time and see if that helps ?
It still triggers the bug then. -- Greetings Michael. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
