Optical mouse laser always on

  • Thread starter Thread starter John A
  • Start date Start date
J

John A

I have noticed that the laser is always glowing on my logitech optical mouse
on my newly built system with a Shuttle AN35N Ultra/AMD mainboard/CPU. I
have a Gateway system Intel/Pentium mainboard/CPU with the same optical
mouse and when the system is powerred off, the laser is turned off. I check
the BIOS settings and made sure that there was not power-on stuff related to
the mouse enabled. I also looked at the settings for the mouse driver and
saw nothing related to this. Is this normal behavior?
 
Whereas On Mon, 22 Sep 2003 08:34:38 -0500, "John A"
I have noticed that the laser is always glowing on my logitech optical mouse
on my newly built system with a Shuttle AN35N Ultra/AMD mainboard/CPU. I
have a Gateway system Intel/Pentium mainboard/CPU with the same optical
mouse and when the system is powerred off, the laser is turned off. I check
the BIOS settings and made sure that there was not power-on stuff related to
the mouse enabled. I also looked at the settings for the mouse driver and
saw nothing related to this. Is this normal behavior?
Click to expand...

It might be. See if there is a jumper to power the mouse poert from
switched or continuous.

FWIW, I have a Microsoft wheel mouse, and it's laser is turned on and
off by the driver.
 
My mouse is also always powered up - with three different motherboards.
It gets power from the "Keep Alive" voltage, which is always present as long
as your system is plugged in.
Don't worry, it's normal.

John
 
After further investigation, it appears this is "working as designed". On
motherboards supporting mouse power-on , power is supplied to the mouse all
the times. I have found mention of at least one motherboard, ASUS, that has
a jumper that can be set to change the power supply to the mouse from
continuous to switched. Just disabling the mouse power-on function in the
BIOS doesn't cause the supply to be switched, it just prevents the power-on
from occurring. So, the bottom line is that I have a new "night-light"!
 
Back
Top