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Date: Fri, 27 Sep 2013 09:05:41 +0200
From: Daniel Lezcano <daniel.lezcano@linaro.org>
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To: Hans de Bruin <jmdebruin@xmsnet.nl>
CC: Aaron Lu <aaron.lwe@gmail.com>, linux-acpi@vger.kernel.org,
	linux-pci@vger.kernel.org,
	Linux-pm mailing list <linux-pm@vger.kernel.org>
Subject: Re: Bisected 3.12.0-rc1 Laptop screen goes blank during kernelboot
References: <523C8238.3000200@xmsnet.nl> <523E51A9.8050609@gmail.com> <5242D734.7020800@linaro.org> <52447A4C.3020000@xmsnet.nl>
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On 09/26/2013 08:17 PM, Hans de Bruin wrote:

[ ... ]

> todays kernel with problem:
>
> #
> # CPU Idle
> #
> CONFIG_CPU_IDLE=y
> # CONFIG_CPU_IDLE_MULTIPLE_DRIVERS is not set
> CONFIG_CPU_IDLE_GOV_LADDER=y
> CONFIG_CPU_IDLE_GOV_MENU=y
> # CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED is not set
> CONFIG_INTEL_IDLE=y
>
>
> ==> /sys/devices/system/cpu/cpuidle/current_driver <==
> acpi_idle
>
> ==> /sys/devices/system/cpu/cpuidle/current_governor_ro <==
> menu
>
> [    0.056000] cpuidle: using governor ladder
> [    0.056000] cpuidle: using governor menu
>
>
>
> 3.8.0:
> bash-4.1# tail /sys/devices/system/cpu/cpuidle/*
> ==> /sys/devices/system/cpu/cpuidle/current_driver <==
> acpi_idle
>
> ==> /sys/devices/system/cpu/cpuidle/current_governor_ro <==
> menu
>
> [    1.759857] cpuidle: using governor ladder
> [    1.763849] scsi 0:0:0:0: Direct-Access     ATA      TOSHIBA MK4009GA
> BS11 PQ: 0 ANSI: 5
> [    1.767098] cpuidle: using governor menu

Thanks for the detailed information. Could you pastebin you kernel 
config file or send it to me privately so I can reproduce the problem ?


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