Ubuntu 14.04 ATI/Intel Hybrid Graphics DPM

Posted by anchit123 on Ask Ubuntu See other posts from Ask Ubuntu or by anchit123
Published on 2014-08-21T09:48:10Z Indexed on 2014/08/21 10:30 UTC
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14.04

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drivers

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ati

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intel-graphics

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hybrid-graphics

I have a Dell Inspiron 3521 with hybrid ATI/Intel graphics. (AMD Radeon 7670M / Intel HD 4000) using Ubuntu 14.04 with open source drivers for graphics. (xserver-xorg-video-ati)

I read that Ubuntu 14.04 with the linux kernel version 3.13 supports auto switching between graphics and dynamic power management. Is it correct?

Anyway, if it is true, I dont think that it is working in my system , because fan runs constantly and battery backup is less than 2 hours.

lspci | grep -i vga
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Thames [Radeon HD 7500M/7600M Series] (rev ff)

What should I do?
Is there any hope that this gets fixed in future kernels?

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