Re: [BUG] 2.6.11-rc[234] setfont fails on i810 after resume from ACPI-S3

mhf
2005-02-28T09:59:52Z

On Sunday 27 February 2005 17:59, Pavel Machek wrote:
> Hi!
>
> > >Well, dumping random stuff to console can produce
> > > funny results. I'd call that normal. Try cat
> > > /dev/urandom, that should be "enough random".
> >
> > I am also getting strange effects. I boot into
> > 2.6.11-rc4 and the console fonts looks fine. Come back
> > a day later and the console font has corrupt
> > characters. E.g. Displays a "D" instead of an "L" and
> > stuff like that. It is mostly readable, except for a
> > few characters. It is only the local console that is
> > corrupted. ssh into the box displays correct
> > characters, so all I can assume is that the VGA console
> > is being programmed with different characters. The bad
> > characters also survive a soft reboot( During BIOS boot
> > up), until the linux kernel starts booting, and then it
> > switches to a good font.
>
> I have seen something similar on S3 cards with bad video
> ram (we had
>
> >3 of them). If it survives soft reboot... well, that
> > looks like
>
> hardware problem to me. [We may do something bad in
> linux, too, but strange effects should not survive
> reboot, that's hw bug. I'd suggest memtest on video ram,
> but someone would need to write that tool, first].
>
> Pavel

i810 uses system RAM (which was tested with memtest)

In my case, it also does work fine with 2.4.29, thus problem
2.6 specific.

Michael