Re: hwclock & /dev/rtc

[Celejar <celejar@gmail.com>]

On Sun, 03 Jun 2007 14:31:43 +1000
Paul Wise <pabs@debian.org> wrote:

> Hi all,
> 
> [Please CC me, I'm not subscribed]
> 
> Can anyone tell me why hwclock --directisa works on this laptop (Dell
> Inspirion) but /dev/rtc does not (linux 2.6.21 from Debian sid)?
> 
> # hwclock --directisa --show
> Fri Jun  1 15:36:11 2007  -0.377827 seconds
> # hwclock  --show
> select() to /dev/rtc to wait for clock tick timed out
> # lspci | grep ISA 
> 00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 01)
> # lspci -n  | grep 00:1f.0
> 00:1f.0 0601: 8086:27b9 (rev 01)
> 
> Is there a module udev isn't loading that it should be? Or do I need to
> write a driver for it?

I have the same issue with my Acer Aspire 3690-2672 laptop.  I don't
know how to identify the rtc hardware, but the system seems similar to
yours; it's an Intel 82801G (ICH7) based system, and the lspci ISA
lines are the same as yours, except that mine's rev 02.

Anyway, there's an extensive discussion about the issue here:

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=277298
 
> -- 
> bye,
> pabs

Celejar
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