Ubuntu-Certification

Feedback on the Dell Inspiron 17R 5737 (5737-7976)

Asked by Pavel Tyslacki

>>> The Dell Inspiron 5737 portable with the components described below has been awarded the status of Certified Pre-Install for Ubuntu.

My model have `Intel HD Graphics 4400` and `AMD Radeon HD 8870M ` graphics.

However functional keys `Fn+F4` and `Fn+F5` to change brightness do not work correctly: this buttons switch values on `/sys/class/backlight/acpi_video0/brightness` but it's not have any effect, however `# echo 500 > /sys/class/backlight/intel_backlight/brightness` work fine. Fixed this issue with next solution: http://www.ubuntuka.com/ubuntu-command-line-tricks-set-1/.

After reboot brightness set to 100%. Fixed with rc.local.

Also I had issue with kworker cpu load about 70% for one core, I resolved this issue with next solution http://askubuntu.com/a/233947 (for me was gpe11).

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Launchpad Janitor (janitor) said : 		#1

This question was expired because it remained in the 'Open' state without activity for the last 15 days.

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Po-Hsu Lin (cypressyew) said : 		#2

Hello,
this is a BIOS related issue, I've link the bug here.
If you're experiencing this issue with a pre-installed Ubuntu, please let me know

Cheers

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