High pitched sound + OOPS with acpi/processor on DELL inspiron 8600

High pitched sound + OOPS with acpi/processor on DELL inspiron 8600

[Renald Buter]

[-- Attachment #1: Type: text/plain, Size: 2763 bytes --]

Hello list,

When I load the acpi/processor module (or compile it into the kernel),
a high-pitched sound will start to emit from under the keyboard. This
whine will lessen when the CPU has something to do, so I presume it has
something to do the the dummy calls? Would there be an easy fix?

Also, removing the processor module from the kernel results in a kernel OOPS:
	Jul  4 15:25:19 epsilon kernel: Unable to handle kernel paging request at virtual address e0ba228c
	Jul  4 15:25:19 epsilon kernel:  printing eip:
	Jul  4 15:25:19 epsilon kernel: e0ba228c
	Jul  4 15:25:19 epsilon kernel: *pde = 0146b067
	Jul  4 15:25:19 epsilon kernel: *pte = 00000000
	Jul  4 15:25:19 epsilon kernel: Oops: 0000 [#1]
	Jul  4 15:25:19 epsilon kernel: PREEMPT
	Jul  4 15:25:19 epsilon kernel: CPU:    0
	Jul  4 15:25:19 epsilon kernel: EIP:    0060:[<e0ba228c>]    Tainted: P
	Jul  4 15:25:19 epsilon kernel: EFLAGS: 00010282   (2.6.6)
	Jul  4 15:25:19 epsilon kernel: EIP is at 0xe0ba228c
	Jul  4 15:25:19 epsilon kernel: eax: 00000000   ebx: 009be59a   ecx: 00000008   edx: 00000000
	Jul  4 15:25:19 epsilon kernel: esi: de97a8f8   edi: 009bd7e7   ebp: de97a800   esp: c034dfbc
	Jul  4 15:25:19 epsilon kernel: ds: 007b   es: 007b   ss: 0068
	Jul  4 15:25:19 epsilon kernel: Process swapper (pid: 0, threadinfo=c034c000 task=c02dda40)
	Jul  4 15:25:19 epsilon kernel: Stack: 00099100 00000000 c034c000 00099100 c037b0a0 003ba007 c0101fa4 c034c000
	Jul  4 15:25:19 epsilon kernel:        c034e78f c02dda40 00000000 c0373548 00000012 c034e4d0 c037b0c0 00000816
	Jul  4 15:25:19 epsilon kernel:        c010019f
	Jul  4 15:25:19 epsilon kernel: Call Trace:
	Jul  4 15:25:19 epsilon kernel:  [<c0101fa4>] cpu_idle+0x34/0x40
	Jul  4 15:25:19 epsilon kernel:  [<c034e78f>] start_kernel+0x15f/0x180
	Jul  4 15:25:19 epsilon kernel:  [<c034e4d0>] unknown_bootoption+0x0/0x120
	Jul  4 15:25:19 epsilon kernel:
	Jul  4 15:25:19 epsilon kernel: Code:  Bad EIP value.
	Jul  4 15:25:19 epsilon kernel:  <0>Kernel panic: Attempted to kill the idle task!
	Jul  4 15:25:19 epsilon kernel: In idle task - not syncing
Disabling PREEMPT in the kernel will fix this.

Both these issues occur with recent (vanilla) kernels: 2.6.6 and 2.6.7.
Otherwise, loading acpi/processor in the kernel will (apart from the
whine) leaves me with a working system: throttling, speedstep, etc. will
all work as expected.

If you need more info, I'll be happy to produce it. Hints on where to
look/change parameters are also more than welcome!

If I'm barking up the wrong tree here, my apologies in advance. But I
hope at least the pitched sound thing can be fixed, because without the
acpi/processor the CPU runs hotter than it should. 

Thanks for the great work on the ACPI subsytem!

Regards,

Renald Buter

[-- Attachment #2: pci --]
[-- Type: text/plain, Size: 9611 bytes --]

0000:00:00.0 Host bridge: Intel Corp. 82855PM Processor to I/O Controller (rev 03)
	Subsystem: Dell: Unknown device 0191
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR-
	Latency: 0
	Region 0: Memory at e0000000 (32-bit, prefetchable)
	Capabilities: [e4] #09 [4104]
	Capabilities: [a0] AGP version 2.0
		Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans- 64bit- FW+ AGP3- Rate=x1,x2,x4
		Command: RQ=1 ArqSz=0 Cal=0 SBA+ AGP+ GART64- 64bit- FW+ Rate=x4

0000:00:01.0 PCI bridge: Intel Corp. 82855PM Processor to AGP Controller (rev 03) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
	Status: Cap- 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 32
	Bus: primary=00, secondary=01, subordinate=01, sec-latency=32
	I/O behind bridge: 0000c000-0000cfff
	Memory behind bridge: fc000000-fdffffff
	Prefetchable memory behind bridge: d0000000-dfffffff
	Expansion ROM at 0000c000 [disabled] [size=4K]
	BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B-

0000:00:1d.0 USB Controller: Intel Corp. 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 (rev 01) (prog-if 00 [UHCI])
	Subsystem: Dell: Unknown device 0191
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 0
	Interrupt: pin A routed to IRQ 11
	Region 4: I/O ports at bf80 [size=32]

0000:00:1d.1 USB Controller: Intel Corp. 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2 (rev 01) (prog-if 00 [UHCI])
	Subsystem: Dell: Unknown device 0191
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 0
	Interrupt: pin B routed to IRQ 11
	Region 4: I/O ports at bf40 [size=32]

0000:00:1d.2 USB Controller: Intel Corp. 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3 (rev 01) (prog-if 00 [UHCI])
	Subsystem: Dell: Unknown device 0191
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 0
	Interrupt: pin C routed to IRQ 11
	Region 4: I/O ports at bf20 [size=32]

0000:00:1d.7 USB Controller: Intel Corp. 82801DB/DBM (ICH4/ICH4-M) USB 2.0 EHCI Controller (rev 01) (prog-if 20 [EHCI])
	Subsystem: Dell: Unknown device 0191
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 0
	Interrupt: pin D routed to IRQ 11
	Region 0: Memory at f4fffc00 (32-bit, non-prefetchable)
	Capabilities: [50] Power Management version 2
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [58] #0a [2080]

0000:00:1e.0 PCI bridge: Intel Corp. 82801 PCI Bridge (rev 81) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
	Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR+
	Latency: 0
	Bus: primary=00, secondary=02, subordinate=02, sec-latency=32
	I/O behind bridge: 0000d000-0000efff
	Memory behind bridge: f6000000-fbffffff
	BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-

0000:00:1f.0 ISA bridge: Intel Corp. 82801DBM LPC Interface Controller (rev 01)
	Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
	Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 0

0000:00:1f.1 IDE interface: Intel Corp. 82801DBM (ICH4) Ultra ATA Storage Controller (rev 01) (prog-if 8a [Master SecP PriP])
	Subsystem: Dell: Unknown device 0191
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 0
	Interrupt: pin A routed to IRQ 11
	Region 0: I/O ports at <ignored>
	Region 1: I/O ports at <ignored>
	Region 2: I/O ports at <ignored>
	Region 3: I/O ports at <ignored>
	Region 4: I/O ports at bfa0 [size=16]
	Region 5: Memory at 20000000 (32-bit, non-prefetchable) [size=1K]

0000:00:1f.5 Multimedia audio controller: Intel Corp. 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 01)
	Subsystem: Dell: Unknown device 0191
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 0
	Interrupt: pin B routed to IRQ 7
	Region 0: I/O ports at b800
	Region 1: I/O ports at bc40 [size=64]
	Region 2: Memory at f4fff800 (32-bit, non-prefetchable) [size=512]
	Region 3: Memory at f4fff400 (32-bit, non-prefetchable) [size=256]
	Capabilities: [50] Power Management version 2
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

0000:00:1f.6 Modem: Intel Corp. 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Modem Controller (rev 01) (prog-if 00 [Generic])
	Subsystem: Broadcom Corporation: Unknown device 4d64
	Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Interrupt: pin B routed to IRQ 7
	Region 0: I/O ports at b400
	Region 1: I/O ports at b080 [size=128]
	Capabilities: [50] Power Management version 2
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

0000:01:00.0 VGA compatible controller: ATI Technologies Inc RV350 [Mobility Radeon 9600 M10] (prog-if 00 [VGA])
	Subsystem: Dell: Unknown device 2001
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop+ ParErr- Stepping- SERR+ FastB2B-
	Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 255 (2000ns min), cache line size 08
	Interrupt: pin A routed to IRQ 11
	Region 0: Memory at d0000000 (32-bit, prefetchable) [size=80000000]
	Region 1: I/O ports at c000 [size=256]
	Region 2: Memory at fcff0000 (32-bit, non-prefetchable) [size=64K]
	Expansion ROM at 00020000 [disabled]
	Capabilities: [58] AGP version 2.0
		Status: RQ=80 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans- 64bit- FW+ AGP3- Rate=x1,x2,x4
		Command: RQ=32 ArqSz=0 Cal=0 SBA+ AGP+ GART64- 64bit- FW+ Rate=x4
	Capabilities: [50] Power Management version 2
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

0000:02:00.0 Ethernet controller: Broadcom Corporation BCM4401 100Base-T (rev 01)
	Subsystem: Dell: Unknown device 8127
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 32
	Interrupt: pin A routed to IRQ 11
	Region 0: Memory at faffe000 (32-bit, non-prefetchable)
	Capabilities: [40] Power Management version 2
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
		Status: D0 PME-Enable- DSel=0 DScale=2 PME-

0000:02:01.0 CardBus bridge: Texas Instruments PCI4510 PC card Cardbus Controller (rev 02)
	Subsystem: Dell: Unknown device 0191
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 168, cache line size 10
	Interrupt: pin A routed to IRQ 11
	Region 0: Memory at 20001000 (32-bit, non-prefetchable)
	Bus: primary=02, secondary=03, subordinate=06, sec-latency=176
	Memory window 0: 20400000-207ff000 (prefetchable)
	Memory window 1: 20800000-20bff000
	I/O window 0: 00004000-000040ff
	I/O window 1: 00004400-000044ff
	BridgeCtl: Parity- SERR- ISA- VGA- MAbort- >Reset+ 16bInt+ PostWrite+
	16-bit legacy interface ports at 0001

0000:02:01.1 FireWire (IEEE 1394): Texas Instruments PCI4510 IEEE-1394 Controller (prog-if 10 [OHCI])
	Subsystem: Dell: Unknown device 0191
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 32 (500ns min, 1000ns max), cache line size 08
	Interrupt: pin A routed to IRQ 11
	Region 0: Memory at faffd800 (32-bit, non-prefetchable)
	Region 1: Memory at faff8000 (32-bit, non-prefetchable) [size=16K]
	Capabilities: [44] Power Management version 2
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME+

0000:02:03.0 Network controller: Broadcom Corporation BCM4306 802.11b/g Wireless LAN Controller (rev 03)
	Subsystem: Dell: Unknown device 0003
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
	Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 32
	Interrupt: pin A routed to IRQ 7
	Region 0: Memory at faff6000 (32-bit, non-prefetchable)

RE: High pitched sound + OOPS with acpi/processor on DELL inspiron 8600

[Li, Shaohua]

There is a patch in http://bugme.osdl.org/show_bug.cgi?id=1716, it
should fix your problem. Please try.

Thanks,
Shaohua
>-----Original Message-----
>From: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org [mailto:acpi-devel-
>admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org] On Behalf Of Renald Buter
>Sent: Monday, July 05, 2004 3:02 PM
>To: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
>Subject: [ACPI] High pitched sound + OOPS with acpi/processor on DELL
>inspiron 8600
>
>Hello list,
>
>When I load the acpi/processor module (or compile it into the kernel),
>a high-pitched sound will start to emit from under the keyboard. This
>whine will lessen when the CPU has something to do, so I presume it has
>something to do the the dummy calls? Would there be an easy fix?
>
>Also, removing the processor module from the kernel results in a kernel
>OOPS:
>	Jul  4 15:25:19 epsilon kernel: Unable to handle kernel paging
>request at virtual address e0ba228c
>	Jul  4 15:25:19 epsilon kernel:  printing eip:
>	Jul  4 15:25:19 epsilon kernel: e0ba228c
>	Jul  4 15:25:19 epsilon kernel: *pde = 0146b067
>	Jul  4 15:25:19 epsilon kernel: *pte = 00000000
>	Jul  4 15:25:19 epsilon kernel: Oops: 0000 [#1]
>	Jul  4 15:25:19 epsilon kernel: PREEMPT
>	Jul  4 15:25:19 epsilon kernel: CPU:    0
>	Jul  4 15:25:19 epsilon kernel: EIP:    0060:[<e0ba228c>]
Tainted:
>P
>	Jul  4 15:25:19 epsilon kernel: EFLAGS: 00010282   (2.6.6)
>	Jul  4 15:25:19 epsilon kernel: EIP is at 0xe0ba228c
>	Jul  4 15:25:19 epsilon kernel: eax: 00000000   ebx: 009be59a
ecx:
>00000008   edx: 00000000
>	Jul  4 15:25:19 epsilon kernel: esi: de97a8f8   edi: 009bd7e7
ebp:
>de97a800   esp: c034dfbc
>	Jul  4 15:25:19 epsilon kernel: ds: 007b   es: 007b   ss: 0068
>	Jul  4 15:25:19 epsilon kernel: Process swapper (pid: 0,
>threadinfo=c034c000 task=c02dda40)
>	Jul  4 15:25:19 epsilon kernel: Stack: 00099100 00000000
c034c000
>00099100 c037b0a0 003ba007 c0101fa4 c034c000
>	Jul  4 15:25:19 epsilon kernel:        c034e78f c02dda40
00000000
>c0373548 00000012 c034e4d0 c037b0c0 00000816
>	Jul  4 15:25:19 epsilon kernel:        c010019f
>	Jul  4 15:25:19 epsilon kernel: Call Trace:
>	Jul  4 15:25:19 epsilon kernel:  [<c0101fa4>] cpu_idle+0x34/0x40
>	Jul  4 15:25:19 epsilon kernel:  [<c034e78f>]
>start_kernel+0x15f/0x180
>	Jul  4 15:25:19 epsilon kernel:  [<c034e4d0>]
>unknown_bootoption+0x0/0x120
>	Jul  4 15:25:19 epsilon kernel:
>	Jul  4 15:25:19 epsilon kernel: Code:  Bad EIP value.
>	Jul  4 15:25:19 epsilon kernel:  <0>Kernel panic: Attempted to
kill
>the idle task!
>	Jul  4 15:25:19 epsilon kernel: In idle task - not syncing
>Disabling PREEMPT in the kernel will fix this.
>
>Both these issues occur with recent (vanilla) kernels: 2.6.6 and 2.6.7.
>Otherwise, loading acpi/processor in the kernel will (apart from the
>whine) leaves me with a working system: throttling, speedstep, etc.
will
>all work as expected.
>
>If you need more info, I'll be happy to produce it. Hints on where to
>look/change parameters are also more than welcome!
>
>If I'm barking up the wrong tree here, my apologies in advance. But I
>hope at least the pitched sound thing can be fixed, because without the
>acpi/processor the CPU runs hotter than it should.
>
>Thanks for the great work on the ACPI subsytem!
>
>Regards,
>
>Renald Buter



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Re: High pitched sound + OOPS with acpi/processor on DELL inspiron 8600

[Renald Buter]

On Mon, Jul 05, 2004 at 07:12:47PM +0800, Li, Shaohua wrote:
> There is a patch in http://bugme.osdl.org/show_bug.cgi?id=1716, it
> should fix your problem. Please try.
> 
> Thanks,
> Shaohua

Thanks I will try tonight! 

But that should *only* fix the OOPS, doesn't it? The whining sound
should still be there...

Regards,

Renald


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Re: High pitched sound + OOPS with acpi/processor on DELL inspiron 8600

[Michael Guntsche]

On Jul 5, 2004, at 13:48, Renald Buter wrote:

> On Mon, Jul 05, 2004 at 07:12:47PM +0800, Li, Shaohua wrote:
>> There is a patch in http://bugme.osdl.org/show_bug.cgi?id=1716, it
>> should fix your problem. Please try.
>>
>> Thanks,
>> Shaohua
>
> Thanks I will try tonight!
>
> But that should *only* fix the OOPS, doesn't it? The whining sound
> should still be there...
>

Try changing the HZ in linux/include/asm-i386/param.h from 1000 to 100.
This fixed the problem for me and I didn't experience any side effects.
NB: You should recompile all your external modules too , since some of 
em might not like the change without recompiling.

/Michael



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Re: High pitched sound + OOPS with acpi/processor on DELL inspiron 8600

[Pavel Machek]

Hi!

> When I load the acpi/processor module (or compile it into the kernel),
> a high-pitched sound will start to emit from under the keyboard. This
> whine will lessen when the CPU has something to do, so I presume it has
> something to do the the dummy calls? Would there be an easy fix?


Sound while powersaving seems to be normal on many machines. See archives.

-- 
64 bytes from 195.113.31.123: icmp_seq=28 ttl=51 time=448769.1 ms         



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Re: High pitched sound + OOPS with acpi/processor on DELL inspiron 8600

[Sérgio Monteiro Basto]

On Mon, 2004-07-05 at 13:34, Michael Guntsche wrote:

> Try changing the HZ in linux/include/asm-i386/param.h from 1000 to 100.
> This fixed the problem for me and I didn't experience any side effects.

I am sure that 100 is the value that comes on kernel 2.4.x, on xine faqs
(http://xinehq.de/index.php/faq#SMOOTHNESS) suggest Set HZ to 1000 in
/usr/src/linux/include/asm-i386/param.h

regards,
-- 
Sérgio M. B.



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Re: High pitched sound + OOPS with acpi/processor on DELL inspiron 8600

[Renald Buter]

On Mon, Jul 05, 2004 at 04:57:37PM +0200, Pavel Machek wrote:
> Hi!
> 
> > When I load the acpi/processor module (or compile it into the kernel),
> > a high-pitched sound will start to emit from under the keyboard. This
> > whine will lessen when the CPU has something to do, so I presume it has
> > something to do the the dummy calls? Would there be an easy fix?
> 
> 
> Sound while powersaving seems to be normal on many machines. See archives.

Ah. I must have tried the wrong keywords while searching. 

But thank you (and thanks to the other replies): I can stop worrying
about whether I am damaging the CPU in some way.

BTW, I changed (as suggested) the HZ in params.h and now the sound
almost disappeared. Haven't tested video-playback quality, so I don't
know if this will be affected in any way...

Thanks again!

Renald


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