rtc module not working for hwclock with Dell Optiplex 745

[Stuart Rossiter]

Binary package hint: linux-source-2.6.22

Rather than re-opening bug #16345, opening a new bug (since was fixed for 26658 poster in 2.6.15...) - I left some comments in #16345 originally...
https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.15/+bug/16345

Exactly the same problem as #16345 with Feisty (fully updated), 2.6.22 kernel and a Dell Optiplex 745 desktop machine.

hwclock will not work with the default /dev/rtc. It works with the --directisa option, or by replacing rtc with genrtc manually. I would suspect other Dell desktops may have the same issue?

uname -r
2.6.22-14-386

lsmod | grep rtc
rtc 13208 0

 hwclock --show --debug
hwclock from util-linux-ng 2.13
Using /dev interface to clock.
Last drift adjustment done at 1211365653 seconds after 1969
Last calibration done at 1211365653 seconds after 1969
Hardware clock is on UTC time
Assuming hardware clock is kept in UTC time.
Waiting for clock tick...
select() to /dev/rtc to wait for clock tick timed out
...got clock tick

sudo hwclock --show --directisa
Wed 21 May 2008 12:18:28 BST -0.221688 seconds

sudo modprobe -r rtc
sudo modprobe genrtc

lsmod | grep rtc
genrtc 8808 0

hwclock --show
Wed 21 May 2008 12:19:26 BST -0.063319 seconds

Let me know if I can provide further diagnostics.

Thanks.

[Stuart Rossiter (stuartr)]

Doh - meant "16345 poster" in first line.

[Stuart Rossiter (monsieurrigsby)]

And meant Gutsy, not Feisty (think I had the problem originally on Feisty, and it remained after upgrade to Gutsy).

Not having a good day.... :-(

[Stuart Rossiter (monsieurrigsby)]

Now works for me after Hardy upgrade. Appears that Ubuntu doesn't now use rtc modules (rtc or genrtc) as lsmod | grep rtc returns nothing.

Since problem also captured in bug 39959, attempting to close this bug (if I have the privilege as the poster...).

[Stuart Rossiter (monsieurrigsby)]

OK, can't close so marking as duplicate of 39959.

[Launchpad Janitor (janitor)]

Beginning with the Hardy Heron 8.04 development cycle, all open Ubuntu kernel bugs need to be reported against the "linux" kernel package. We are automatically migrating this bug to the new "linux" package. However, development has already began for the upcoming Intrepid Ibex 8.10 release. It would be helpful if you could test the upcoming release and verify if this is still an issue - http://www.ubuntu.com/testing . If the issue still exists, please update this report by changing the Status of the "linux" task from "Incomplete" to "New". We appreciate your patience and understanding as we make this transition. Thanks!