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I have a HP dv6t with the following graphics cards

00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Whistler [Radeon HD 6730M/6770M/7690M XT]

I cannot for the life of me get DPM to work correctly. And the laptop constantly runs hot with the fans nearly always running. I have the open source amd drivers installed.

Since I am running Ubuntu 14.04 on kernel 3.13 I should not need the arguement "radeon.dpm=1" correct since kernel 3.13 enables it by default.

Also when I run the command:

cat /sys/kernel/debug/dri/64/radeon_pm_info

listed in these instructions.

All I get is:

cat: /sys/kernel/debug/dri/64/radeon_pm_info: No such file or directory
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closed as off-topic by Rinzwind, karel, falconer, Warren Hill, BuZZ-dEE Jan 30 at 12:23

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Bug reports and problems specific to development version of Ubuntu should be reported on Launchpad so that developers can see, track and fix these issues." – Rinzwind, karel, falconer, Warren Hill, BuZZ-dEE
If this question can be reworded to fit the rules in the help center, please edit the question.

    
14.04 has not been released yet so offtopic; bugs in Ubuntu+1 need to be reported on Launchpad. "it (DPM) will probably be enabled by default in Ubuntu 14.04)". So it could be active when you install 14.04 but it could also be not. And tomorrow it could be the other way around. –  Rinzwind Jan 29 at 22:03
    
turns out In my case cat /sys/kernel/debug/dri/64/radeon_pm_info does not exist so I thought dpm was not working. However apparently that file is just in different folders for me. cat /sys/kernel/debug/dri/65/radeon_pm_info or cat /sys/kernel/debug/dri/1/radeon_pm_info both exist and list the same info. ***I did downgrade to 13.10 but I am assuming it it the same in 14.04 –  luca992 Feb 26 at 8:27

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