Precision M4400 Owner's Lounge

I'm on A13. Video BBIOS 62.94.34.0.1. Video driver 7.15.11.7947.

 

Which I have confirmed are the latest.

I've noticed that the upper left 9th of my display has a rose hue to the whites, this is the area where the flicker is most noticeable. I'm suspecting I've got a slightly defective backlight.

 

Does anyone have a lag on the touchpad? It seems to take a split second between when my finger hits the touchpad and the cursor starts moving. I find it fairly noticeable. If I uninstall the Alps driver, the lag goes away but the cursor moves very slowly even if I bump the mouse cursor speed in the control panel to max. If I reinstall the Alps drivers, the speed resumes fine, but the lag drives me batty.

I have tried the latest A09 drivers from dell.

N

 

Have you tried turning down or off palm detection in the Alps driver?

 

Yes, and I've tried turning off other various features, too. You don't have this symptom?

N

 

No, not at all. And I've never heard of such an occurrence before.

 

OK, Thanks - I'll be calling support then. Its very subtle; almost have to be watching for it.

If no one else has it, must be a defective touchpad.

N

 

Hey Nyceis, I noticed the same thing. In addition to sporadic "skipping" (where the touchpad would lose track of motion, sometimes only for an instant, sometimes for a few seconds), I always felt like there was a little input lag, as if the cursor was a little sluggish. I never felt that with my T61p or R51 UltraNav touchpad. I tried it on the M4400 under XP, Vista, and Windows 7...it felt the same on all. I also believe that installing the drivers made it happen (or made it more noticeable), but using the default Windows drivers wasn't perfect either. I ended up returning my M4400 because of it.

 

I have these issues too and also don't know how to resolve it.

in 3. I'll try to play more with touchpad zoom settings. I hope that could fix it.

 

What do you thing about keyboard solidity? Mine is quite wavy and soft so if I press some key little bit harder it is sagging. I was used to have a tough keyboard on my previous Asus laptop and I also expected it from Dell. It is not a real problem at all, but I was disappointed with keyboard quality.