Red Hat Bugzilla – Bug 242867
F7 Kernel (2.6.21-1.3194.fc7) doesnt boot with a Dell D420 Laptop
Last modified: 2007-11-30 17:12:06 EST
Description of problem:
I have updated my Dell D420 Laptop via yum from FC6 to F7.
But after a reboot the Laptop hangs directly after grub. Only some kernel
messages where shown. no sysinit. but i cant read any error.
any ideas how i can see a better debugging?
Version-Release number of selected component (if applicable):
i found a workaround. set acpi=off as bootparameter and the kernel boots.
is there a acpi problem in 2.6.21 ?
This is a known problem with Dell Duo Core laptops. The usual workaround is to
boot with a maxcpus=1 option. A better workaround could be to use the
clocksource=acpi_pm option, that seems todo the trick for most users as
discussed in bug 241249, of which this is a duplicate.
Closing as a dup of bug 241249.
*** This bug has been marked as a duplicate of 241249 ***