Noise with 2.6.0 in a Dell Laptop ( Latitude c600 )
Hi,
When the 2.6.0 inits in my laptop it becomes reaaallyyy noisy. Why ?
A very strange ( sometimes funny when there is no headake ) thing is that the lan mini-pci card starts doing noises when it receives packets xD
Best regards and thanks in advance .
Lorenzo.
Quoted 5 lines · On January 7, [email protected] wrote:
Hi,
When the 2.6.0 inits in my laptop it becomes reaaallyyy noisy. Why ?
What sort of noise? High pitched whine?
I fix it with the following patch.
NeilBrown
Status: ok
Reduce HZ to 100
see if it affects noise..
----------- Diffstat output ------------
./include/asm-i386/param.h | 2 +- 1 files changed, 1 insertion(+), 1 deletion(-)
include/asm-i386/param.h renamed from include/asm-i386/param.h~current~ +1 -1
@@ -2,7 +2,7 @@#define _ASMi386_PARAM_H#ifdef __KERNEL__ -# define HZ 1000/* Internal kernel timer frequency */ +# define HZ 100/* Internal kernel timer frequency */ # define USER_HZ 100/* .. some user interfaces are in "ticks" */ # define CLOCKS_PER_SEC (USER_HZ)/* like times() */ #endif
Quoted 2 lines · Lorenzo Hernandez Garcia-Hierro
When the 2.6.0 inits in my laptop it becomes reaaallyyy noisy. Why ?
If it's the fans, it's the BIOS reading CPU temperature of 85 C, which is not true. It seems a Fn-Z press resets this reading to sane values. You can look at the temperature reading and fan state with i8kutils.
Atleast that's what a Dell Latitude C640 that I had did.
Quoted 10 lines · Tommi Virtanen
Quoted 2 lines · Lorenzo Hernandez Garcia-Hierro
When the 2.6.0 inits in my laptop it becomes reaaallyyy noisy. Why ?
If it's the fans, it's the BIOS reading CPU temperature of 85 C, which is not true. It seems a Fn-Z press resets this reading to sane values. You can look at the temperature reading and fan state with i8kutils.
Atleast that's what a Dell Latitude C640 that I had did.
Might it be that the hardware reports 85 F instead of 85 C maybe? That's about (85-32)*0.55 = about 29 C, which may be more realistic when you're just booting it up. :)
-- Bart
Quoted 9 lines · Bart Samwel
Quoted 8 lines
Quoted 2 lines
When the 2.6.0 inits in my laptop it becomes reaaallyyy noisy. Why ?
If it's the fans, it's the BIOS reading CPU temperature of 85 C, which is not true. It seems a Fn-Z press resets this reading to sane values. You can look at the temperature reading and fan state with i8kutils.
Atleast that's what a Dell Latitude C640 that I had did.
Might it be that the hardware reports 85 F instead of 85 C maybe? That's about (85-32)*0.55 = about 29 C, which may be more realistic when you're just booting it up. :)
Only if it switches between C and F at runtime. Normal readings when loaded were 55-65, IIRC.