On Saturday 27 May 2006 02:23, Lee Maschmeyer wrote: > Hi all, > > I have a dual boot system with FC5 and Windows XP. On FC5 I run ntpd with > the default config files. The drift file varies widely, from -0.4 or so to > as much as -60 or 100 or more. Generally the longer Fedora is up the > smaller the number, though it's always negative. > > But Windows is losing time hand over fist, maybe a couple minutes or more > in a 3-hour Windows session. I use an old program (AtomTime95) to correct > the Windows clock periodically but it doesn't do any permanent good. > > I had the same kind of thing happen with Fedora 4. It went away when I > installed Fedora 5 until I activated ntpd. > > According to /var/log/messages Fedora has to set the clock back about a > second or so every time I boot it, but nowhere near the gargantuan > misalignment of Windows. > > Does anybody have any idea how to make these two guys live happily together > sharing the clock? Yes, Fedora does use local time - at least, that's the > way I installed it.. > > Thanks much, > > -- > Lee Maschmeyer > <lee_maschmeyer@xxxxxxxxx> > > "Be kind to your fur-bearing friends, > For a skunk may be somebody's brother." > --Fred Allen Hi Guys This sounds like the PC Hardware clock interrupt clock is running a little slow, that is the clock which drives the timer interrupt line. A way to check is to boot into BIOS, record the time both wall clock and BIOS clock and then leave the system on , still in BIOS , for a couple of hours and then check. Windows XP only checks the time with a (S)NTP server at a predetermined time of day, this is by default. However the Windows Time Service (read sntp) can be configured to operate like a normal (s)NTP client. You will have to google Microsoft for that information as I no longer have it at hand. When the Windows Time Service is configured to operate like NTP the time difference problems between the two OSes should be resolved.
