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I have dual graphic in my laptop AMD radeon 7670M And Intel HD After I installed Ubuntu 16.04 Fan speed is quite high and my laptop lags whenever I view videos on browser or open Facebook Is it due to the AMD drivers no more supported in 16.04 Can I disable AMD and use only Intel

I have dual boot and I use Ubuntu for development stuff so is it possible to use dual graphics in Windows while using only Intel in Ubuntu ?

Is it good to turn off the AMD and will it decrease the noisy fan and the lags I face

Ezio
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  • IF still experiencing issues with this, see my answer to this question : http://askubuntu.com/questions/771562/16-04-power-off-discrete-graphics-ati-amd/872190#872190 – Axtux Jan 15 '17 at 13:35

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Yes, you can deactivate the AMD graphics and just use only the intel graphics without problems.

In case you have not already installed it before - install the gksu package from the repositories.

Open a terminal and execute : 

sudo apt-get install gksu

Now execute this command : 

gksudo gedit /etc/default/grub

Add radeon.modeset=0 to this line : GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

so that it reads : GRUB_CMDLINE_LINUX_DEFAULT="quiet splash radeon.modeset=0"

Save the changes you made.

Then execute this command : 

sudo update-grub

Reboot the system and from now on you are using the intel graphics ... and AMD is deactivated.

cl-netbox
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  • Will there be any problem . can I enable it again . can you please post how to enable it also for future reference – Ezio May 13 '16 at 14:42
  • @Ezio : There will be no problem to re-enable the AMD graphics later - just do the same again, but this time remove radeon.modeset=0 from the line, then update GRUB and reboot the operating system. :) – cl-netbox May 13 '16 at 14:47
  • Thank you for the answer. Will disabling from ubuntu will also disable it from Windows ? – Ezio May 13 '16 at 14:50
  • @Ezio : No, of course not - Windows is a different operating system with completely different drivers. :) – cl-netbox May 13 '16 at 14:51
  • @cl-netbox, I tried the same on my Dell Inspiron 15R 7520 with AMD Radeon HD 7730M. However, instead of Ubuntu, I'm using Debian 8, and the value for GRUB_CMDLINE_LINUX_DEFAULT was "quite". Can you help me? Thanks. – arthursfreire Sep 28 '16 at 18:08
  • @arthursfreire : quiet or quiet splash is not important (just a difference between debian and Ubuntu), important is to add the parameter radeon.modeset=0 ... it should work in debian as well, because this parameter is related to the kernel for booting the computer with the AMD graphics drivers disabled. :) – cl-netbox Sep 29 '16 at 08:47