BIOS Regression on HP/Compaq [d]v6000 series notebooks
peterjeremy at optushome.com.au
Mon Apr 28 11:26:27 UTC 2008
I recently received notification of a "critical BIOS update" for my
Presario v6107 laptop. See
for more details. Since it's already had the motherboard replaced
(with symptoms matching those listed), I thought it prudent to upgrade.
Unfortunately, after updating the BIOS, the laptop no longer likes
losing mains power: It looks like the clock interrupts stop so nothing
happens unless you generate keyboard/mouse/network activity. This
situation continues until it's rebooted. This looks very much like
the 'C1E mode disables LAPIC timer on idle' bug that was stomped on
last April - but it seems that HP have managed to find a way around
The laptop is running 6.3-PRERELEASE/amd64.
Any suggestions on how to start investigating?
Please excuse any delays as the result of my ISP's inability to implement
an MTA that is either RFC2821-compliant or matches their claimed behaviour.
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