Ubuntu-Certification

Feedback on the Lenovo ThinkPad E540

Asked by Emanuel Barros

Ubuntu 12.04.3 LTS

Lenovo ThinkPad E540
MTM: 20C5-003QPG
Serial: PF00E9FW

Not Working:
Wifi
Nvidia
screen bright

After install boot to back screen.
I think is this bug:
https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-319/+bug/1269232

01:00.0 3D controller: NVIDIA Corporation GK208M [GeForce GT 740M] (rev ff)
05:00.0 Network controller: Intel Corporation Wireless 7260 (rev 73)

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Emanuel Barros (emanuel-barros) said : 		#1

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.4 LTS
Release: 12.04
Codename: precise

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Po-Hsu Lin (cypressyew) said : 		#2

Hello Emanuel,

Thanks for your feedback, as this system, Lenovo ThinkPad E540, was only certified with pre-installed Ubuntu, the regular stock Ubuntu images may not work well with it.
I'll suggest you to subscribe to these bugs, to get updated about the status of them

Cheers

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Emanuel Barros (emanuel-barros) said : 		#3

Hello Po

Lenovo ThinkPad E540 have two graphic cards, Intel HD 4600 and Nvidea.
Why the default isn't the Intel (save power)?
And there is any way to use only the intel?

Thanks for the feedback
Cheers

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Po-Hsu Lin (cypressyew) said : 		#4

Hello Emanuel,

On some system, you may choose which graphic controller you want to use in BIOS settings, you can check yours.
Here is a document about the Hybrid Graphic
https://help.ubuntu.com/community/HybridGraphics

Also, I saw this article this morning, a new feature in 14.04
http://www.webupd8.org/2014/01/prime-indicator-lets-you-quickly-switch.html

Hope this helps.
Cheers

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