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

[Pascal Ziener]

I can confirm such strange BIOS issues. My PC is a Dell Dimension 9150. I have installed Windows XP and Dapper Drake, since Flight 2. I had no problems until the last 2-3 kernel updates. Suddenly, when I want to reboot, Dapper begin to reboot and the BIOS screen appears, as normal. But, not as normal, the BIOS screen stays on my monitor when its finished and nothing happens. Only Ctrl-Alt-Del helps. And same happens again. After 2 reboots with Ctrl-Alt-Del grub appears again on my monitor and I can boot again. I don't have any problems rebooting from Windows, it's only with Dapper Drake. After serveral reboots wih Dapper i get this strange clock error, too. My System won't boot and my system time is totally wrong. I must adjust my system time and i can boot again. The advice with 
HWCLOCKPARS="--directisa" didn't help. I hope this informatin helps a little bit.

Sorry for my bad english!

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