Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

I have a kubuntu 13.04 system that is mutlibooted with windows 7, backbox and centos.

The question I have is about the clock. If I shut down with one os and start back with the same OS it will be updated. If I shutdown and start with a different OS it's off by the number of hours that OS was shut down.

I thought it was the bios battery. So, i changed it. I reset the time in the bios. It's the correct time. But it doesn't update in any OS unless it was the last OS.

Does my bios need to be updated, downgraded?

root@service-Laptop:/etc/apt# dmidecode --type 0
# dmidecode 2.11
SMBIOS 2.6 present.

Handle 0x0000, DMI type 0, 24 bytes
BIOS Information
        Vendor: American Megatrends Inc.
        Version: K53E.221
        Release Date: 08/10/2012
        Address: 0xF0000
        Runtime Size: 64 kB
        ROM Size: 2560 kB
                PCI is supported
                BIOS is upgradeable
                BIOS shadowing is allowed
                Boot from CD is supported
                Selectable boot is supported
                EDD is supported
                5.25"/1.2 MB floppy services are supported (int 13h)
                3.5"/720 kB floppy services are supported (int 13h)
                3.5"/2.88 MB floppy services are supported (int 13h)
                Print screen service is supported (int 5h)
                8042 keyboard services are supported (int 9h)
                Serial services are supported (int 14h)
                Printer services are supported (int 17h)
                ACPI is supported
                USB legacy is supported
                Smart battery is supported
                BIOS boot specification is supported
                Targeted content distribution is supported
        BIOS Revision: 4.6

Any help would be great. Thanks :D

Update: I have installed the new bios and the problem still exists. The time servers can not be accessed, and ubuntu 13.04 has the same problem. Windows seems to have adapted and is able to keep the correct time +/- 10 minutes.

share|improve this question
add comment

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.