Support in other languages: 
Reply
Ctrl-Alt-Del
skool4boyz2
Posts: 8
Registered: ‎04-25-2012
Location: sydney, Australia
0

U300s mouse cursor is jumping around when charging

Hi everyone. I am quite new to lenovo.

I just bought U300s ideapad last week.

 

Straight to the point: My main problem is that

when i am charging the laptop, the mouse cursor

skipping around and it is pretty annoying. I can't even click

the right icon. The movement is here and there.

 

I have had contacted the customer service via chatting,

 

1) suggested to update the synaptics driver (Done)

2) Reinstall win 7 os (Done)

3) The guy even update the BIOS for me (he virtually control my laptop

and update for me) (Done)

 

Can somebody help me out. Experts or anybody experienced the same

situation before. Please help me out.

 

Thank you

 

p.s -when my laptop is fully charge, it works fine

tanujhanda
Posts: 955
Topics: 3
Kudos: 80
Solutions: 65
Registered: ‎01-05-2010
Location: INDIA

Re: U300s mouse cursor is jumping around when charging

Hello skool4boyz2 and welcome to community,

 

Kindly check connecting power adapter with different min or if you have another power adapter then check with it,

 

 

Best Regards,

Tanuj


Did someone help you today? Press the star on the left to thank them with a Kudo!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution".! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.

Follow @LenovoForums on Twitter!

Ctrl-Alt-Del
skool4boyz2
Posts: 8
Registered: ‎04-25-2012
Location: sydney, Australia
0

Re: U300s mouse cursor is jumping around when charging

thanks for the reply,

 

I just wondering if existing charger can be replaced by the new one. Is it covered in the warranty? I use the original charger and

the problem keep on coming. 

802.11n
fiesta
Posts: 134
Registered: ‎12-18-2011
Location: Athens
0

Re: U300s mouse cursor is jumping around when charging

With all the drivers you reinstaled, did you update the energy management driver as well?

 

might just do the trick, especially after BIOSUpdate.

lead_org
Posts: 20,356
Topics: 128
Kudos: 1,202
Solutions: 1,277
Registered: ‎12-19-2008
Location: Australia, Melbourne
0

Re: U300s mouse cursor is jumping around when charging

[ Edited ]

yes, this problem you are experiencing is most likely due to the fact that during when your battery charges, your CPU speed is throttled back.

This throttling problem is a known problem.

 

Try the latest BIOS firmware update, see whether it addresses the issue. 

Regards,

Jin Li

May this year, be the year of 'DO'!

I am a volunteer, and not a paid staff of Lenovo or Microsoft
Ctrl-Alt-Del
skool4boyz2
Posts: 8
Registered: ‎04-25-2012
Location: sydney, Australia
0

Re: U300s mouse cursor is jumping around when charging

Hi guys thanks for the reply.

 

I have had check the BIOS. It is updated.

 

I have also installed latest power management.

 

Nothing change.

 

Any thought?

 

Thanks

Community Moderator
Zehnsteine
Posts: 1,180
Registered: ‎08-28-2011
Location: Thailand
0

Re: U300s mouse cursor is jumping around when charging

Hi Boyz,

 

it very much looks like the charger is to weak to power the U300s machine and charge the battery simultaneously,

next step in troubleshooting should be to temporarily connect another more powerful compatible charger and see what happen then.

Can you go visit a computer vendor nearby and pester him to make that test for you? :smileywink:

 

And sure your existing original Lenovo charger is covered by warranty!

 

Just a thought... Zehn

lead_org
Posts: 20,356
Topics: 128
Kudos: 1,202
Solutions: 1,277
Registered: ‎12-19-2008
Location: Australia, Melbourne
0

Re: U300s mouse cursor is jumping around when charging

[ Edited ]

Install HWinfo32, check whether your CPU is throttling (put your machine under full performance) when your laptop is charging.

Regards,

Jin Li

May this year, be the year of 'DO'!

I am a volunteer, and not a paid staff of Lenovo or Microsoft
Ctrl-Alt-Del
skool4boyz2
Posts: 8
Registered: ‎04-25-2012
Location: sydney, Australia
0

Re: U300s mouse cursor is jumping around when charging

Hi guys, these are snapshots when using  HWinfo32.

 

 

 

 

This is before 

 

http://s1245.photobucket.com/albums/gg589/skool4boyz2/?action=view&current=beforecharging.png

 

 

This is after

 

http://s1245.photobucket.com/albums/gg589/skool4boyz2/?action=view&current=after.png

 

Anythought ? 

 

Thx

lead_org
Posts: 20,356
Topics: 128
Kudos: 1,202
Solutions: 1,277
Registered: ‎12-19-2008
Location: Australia, Melbourne
0

Re: U300s mouse cursor is jumping around when charging

before as in when the battery is charging? and after as in when the battery is finishing charging?
Regards,

Jin Li

May this year, be the year of 'DO'!

I am a volunteer, and not a paid staff of Lenovo or Microsoft