Re: 2.5.69 strange high tone on DELL Inspiron 8100

Andrew McGregor (andrew@indranet.co.nz)
Sun, 11 May 2003 23:28:25 +1200


Try this (which will make no difference to the effectiveness of APM on this
machine):

> CONFIG_PM=y
>
> CONFIG_APM=y
> CONFIG_APM_DO_ENABLE=n
> CONFIG_APM_CPU_IDLE=n
> CONFIG_APM_DISPLAY_BLANK=y
> CONFIG_APM_REAL_MODE_POWER_OFF=y
>
> CONFIG_CPU_FREQ=n
> CONFIG_CPU_FREQ_TABLE=n
>
> CONFIG_X86_SPEEDSTEP=n

Reasoning:
cpufreq and speedstep don't work on Dell P3 laptops anyway, and the
*internal power supplies* of the i8x00 series make wierd noises when APM
tries to idle the CPU. The board will do this anyway, without making
noise, so linux need not.

Andrew

--On Saturday, 10 May 2003 3:57 p.m. +0200 Tuncer M zayamut Ayaz
<tuncer.ayaz@gmx.de> wrote:

> linux-2.5.69 (problem encountered since 2.5.67)
> DELL Inspiron 8100
> - Pentium3-M
> - ESS Maestro3
> - Intel chipset
> - builtin eepro100
> - builtin lucent winmodem (not used)
> - builtin nVidia GeForce2 Go (yes happens without nvdia.com driver too)
> - BIOS A15
>
> using vanilla Debian GNU/Linux sid without incorporation of
> Debian's kernel-package mechanism.
>
> ever since I've run ALSA's snddevices script to create the needed /dev
> entries the laptop creates a permanent low-volume high tone (beep-like,
> but definitely not sounding like a normal pc-speaker).

> CONFIG_PM=y
>
> CONFIG_APM=y
> CONFIG_APM_DO_ENABLE=y
> CONFIG_APM_CPU_IDLE=y
> CONFIG_APM_DISPLAY_BLANK=y
> CONFIG_APM_REAL_MODE_POWER_OFF=y
>
> CONFIG_CPU_FREQ=y
> CONFIG_CPU_FREQ_TABLE=y
>
> CONFIG_X86_SPEEDSTEP=y

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