[Bug 43745] Re: Ubuntu corrupts real time clock on some dell laptops

[Mauricio]

Hello, 
I have a Dell Inspiron 6400, I am using Ubuntu 6.06.1 LTS. 

I am running my custom own kernel
# uname -a
Linux yack-yack 2.6.17.6 #1 SMP PREEMPT Wed Jul 26 20:26:02 CST 2006 i686 GNU/Linux

$ sudo hwclock -D
hwclock from util-linux-2.12r
Using /dev/rtc interface to clock.
Last drift adjustment done at 1157034115 seconds after 1969
Last calibration done at 1157034115 seconds after 1969
Hardware clock is on local time
Assuming hardware clock is kept in local time.
Waiting for clock tick...
...got clock tick
Time read from Hardware Clock: 2006/09/01 00:03:20
Hw clock time : 2006/09/01 00:03:20 = 1157090600 seconds since 1969
Fri 01 Sep 2006 12:03:20 AM CST  -0.210056 seconds

$ sudo hwclock -D --directisa
hwclock from util-linux-2.12r
Using direct I/O instructions to ISA clock.
Last drift adjustment done at 1157034115 seconds after 1969
Last calibration done at 1157034115 seconds after 1969
Hardware clock is on local time
Assuming hardware clock is kept in local time.
Waiting for clock tick...
...got clock tick
Time read from Hardware Clock: 2006/09/01 00:04:23
Hw clock time : 2006/09/01 00:04:23 = 1157090663 seconds since 1969
Fri 01 Sep 2006 12:04:23 AM CST  -0.856189 seconds

---
Today I had to remove the coin battery because I receive "Time-of-day clock stopped", later read this page. I though to remove rtc module from kernel, but I don't think without rtc module solved this time problem.

Anyways...

Anybody have been tested this solution for this distribution and kernel.
Well I added --directisa to /etc/init.d/hwclock.sh, I will tell you if
this solved this situation.

Regards

-- 
Ubuntu corrupts real time clock on some dell laptops
https://launchpad.net/bugs/43745