Re: [G5] Mirrored characters on the console [was Re: Problem compiling SMU driver]
> > I've got rid of the problem by switching CONFIG_FB_NVIDIA off. I
> > have kept CONFIG_FB_RIVA in, and it seems to work fine now (but I
> > haven't been as far as the X server configuration yet).
>
> That is weird, CONFIG_FB_NVIDIA should work fine. You should make sure
> you tell the linux-fbdev mailing list about your problem.
As a follow up on my previous post, I've found the following message on
the linux kernel list:
http://www.ussg.iu.edu/hypermail/linux/kernel/0411.1/0589.html
<< Q: My system hangs when vt-switching if I have rivafb enabled.
A: Using both rivafb and the NVIDIA kernel module at the same time is
currently broken. In general, using two independent software drivers
to drive the same piece of hardware is a bad idea. >>
I get my "reversed" characters with both CONFIG_FB_NVIDIA and
CONFIG_FB_RIVA activated. I have not tried with CONFIG_FB_NVIDIA alone.
This might be the cause of the problem.
Francois
On Tue, 2005-04-12 at 01:06, Benjamin Herrenschmidt wrote:
> On Mon, 2005-04-11 at 18:23 +0100, Francois wrote:
> > > Hrm... weird... could either be some problem with userland trying to
> > > change the console font, or maybe some of the old problems with VGA
> > > console vs. fbdev ... was your build really clean ? If you backup
> > > your .config, do make distclean, restore .config, make oldconfig, and
> > > rebuild, does it fix the problem ?
> >
> > I've got rid of the problem by switching CONFIG_FB_NVIDIA off. I have
> > kept CONFIG_FB_RIVA in, and it seems to work fine now (but I haven't
> > been as far as the X server configuration yet).
>
> That is weird, CONFIG_FB_NVIDIA should work fine. You should make sure
> you tell the linux-fbdev mailing list about your problem.
>
> > Francois
> >
> > On Sat, 2005-04-09 at 03:00, Benjamin Herrenschmidt wrote:
> > > > The problem is probably not much to solve, since characters are
> > > > displayed properly in the first few seconds of the boot *until* the Tux
> > > > logo kicks in (the logo is then fine, but the characters are swapped).
> > > > Strangely enough too, the first pass of the Debian installer (the one
> > > > installing the base system, before the first reboot) managed to display
> > > > characters properly (I'm using the kernel I've compiled -- 2.6.12-r2 --
> > > > since the one d-i picks by default -- 2.6.8-power4 I think -- hangs
> > > > after the disk mount).
> > > >
> > > > Has anybody any idea of which option I could turn off in my kernel
> > > > config?
> > > >
> > > > Thanks for the help!
> > >
> > > Hrm... weird... could either be some problem with userland trying to
> > > change the console font, or maybe some of the old problems with VGA
> > > console vs. fbdev ... was your build really clean ? If you backup
> > > your .config, do make distclean, restore .config, make oldconfig, and
> > > rebuild, does it fix the problem ?
> > >
> > > If not, try removing VGA console support
> > >
> > > Ben.
> >
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