Hello everyone, I have a sony laptop z series SVZ1311C5E with the PMD VGP-PRZ20A.
The hotplug is working (except for the video card) with the ubuntu kernel 3.5 but not with the next ubuntu versions, neither with every version of vanilla kernels. I tried to open a bug on ubuntu but I didn't receive any support. I've tried to analyze the ubuntu kernel patches but I'm not able to understand which is the interested part. The patch related to acpiphp are already applied in mainline in the next versions and the other hotplug patches seem not related to this problem. has anybody of you the same problem? can you help me?
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