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I installed a few hours ago Ubuntu 14.04 and since I started using it I'm seeing a weird error always appearing in terminal :

[ 3099.912152] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires Package (20140424/nsarguments-95)
[ 3099.912316] ACPI: \_SB_.PCI0.PEG0.PEGP: failed to evaluate _DSM
[ 3099.912343] ACPI Warning: \_SB.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20140424/nsarguments-95)

This error appears randomly when I'm writing in the terminal (not when I confirm a command, only when I'm looking at a terminal and not necessarily logged). Note that it occurred one time in the graphic terminal but never occurred again. Since that time it always happened in the Ctrl +Alt+Fx terminal.

Elder Geek
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Ysjanati
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1 Answers1

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I may be wrong but I think It's just like a built in reminder letting you know that you ACPI is out of date. If I am right then doing in the terminal:

sudo apt-get update
sudo apt-get upgrade

will fix your little issue.

Note: Doing the upgrade will take approx. 10-30 minutes depending on internet speed

Tekx Wolf
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