I can confirm this bug in the 8.04 release on my Sony Vaio VGN-N31L
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[Hardy] ACPI Embedded Controller (EC) stops boot when kernel boot 'quiet'
option is enabled or AC power is connected
https://bugs.launchpad.net/bugs/191137
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PROBLEM:
On my system, X is unable to load the NVIDIA binary driver after the kernel
update. Not the famous "kernel module and X driver version mismatch", the X log
just says it encountered an error loading the NVIDIA driver module. The package
versions are:
nvidia-kernel-common 20051028+1ubunt
Public bug reported:
Binary package hint: compiz
Involved software:
Ubuntu Feisty Fawn (7.04) with desktop effects (Compiz)
Sun Java 1.6.0u1
nvidia-glx-new drivers 1.0.9775 (for my NVidia 6600GT video card)
With this combination, Java applications work with desktop effects
activated, which is no