hybrid-graphics-ati/intel

[Roby333]

Mageia 2 kde - Hp probook 4730s 4xIntel i5 2450m

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lspci | grep VGA:
VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller
VGA compatible controller: ATI Technologies Inc Seymour [Radeon HD 6400M Series]
lshw -c display | grep driver:
configuration: driver=i915 latency=0
but I have problems with temperatures:
acpitz-virtual-0
Adapter: Virtual device
temp1:        +51.0°C  (crit = +128.0°C)
temp2:        +51.0°C  (crit = +128.0°C)
temp3:        +32.0°C  (crit = +128.0°C)
temp4:        +44.0°C  (crit = +128.0°C)
temp5:        +20.0°C  (crit = +128.0°C)
temp6:         +0.0°C  (crit = +128.0°C)
temp7:         +0.0°C  (crit = +128.0°C)
temp8:         +0.0°C  (crit = +128.0°C)

coretemp-isa-0000
Adapter: ISA adapter
Physical id 0:  +55.0°C  (high = +86.0°C, crit = +100.0°C)
Core 0:         +55.0°C  (high = +86.0°C, crit = +100.0°C)
Core 1:         +54.0°C  (high = +86.0°C, crit = +100.0°C)

at this time are not very high, usually about 60
normal temperatures are around the 40 ( Win) and in arch I solved with hybrid-video-ati-intel package
A few tips to properly install the driver? Thanhs

[martinw]

If you type

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cat /sys/kernel/debug/vgaswitcheroo/switch


in a terminal window, do you see something like this

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0:IGD:+:Pwr:0000:00:02.0
1:DIS: :Pwr:0000:01:00.0


If so, type

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echo OFF > /sys/kernel/debug/vgaswitcheroo/switch


(you'll need to be the root user to do this). Repeating the first command, you should now see something like

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0:IGD:+:Pwr:0000:00:02.0
1:DIS: :Off:0000:01:00.0


which means your discrete graphics card has been turned off. This should reduce power consumption and hence temperature. This does mean you can only use the integrated (Intel) graphics.

Alternatively, install the proprietary 'fglrx' driver, and in the Catalyst Control Centre, enable PowerPlay. On my notebook with ATI/Intel hybrid graphics, this (surprisingly) resulted in lower power consumption than using the Intel graphics.

Note that these two solutions are mutually exclusive - vgaswitcheroo is only present if the free 'radeon' driver is installed.

[Roby333]

I understand. thanks you were very accurate and simple
Roby

[isadora]

But did it work?

[Roby333]

0:IGD:+:Pwr:0000:00:02.0
1:DIS: :Off:0000:01:00.0
so the temperature drops enough
At least you don't hear the fans always run