hybrid for ubuntu14.04(ATI/Intel)

[l0o0]

My laptop is acer 4745g, i have just installed ubuntu 14.04 gnome daily-build. The installation process is all right. Acer 4745g have ATI HD5650 and Intel chip, I think hybrid GPU is muxed. I want to turn on the integrated chip and turn off the discrete. I follow the steps in https://help.ubuntu.com/community/HybridGraphics using vga_switcheroo.

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

Turns on the GPU that is disconnected (not currently driving outputs), but does not switch outputs.

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

Connects integrated graphics with outputs.

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

Turns off the graphics card that is currently disconnected.


So i want to check the status of the vga chip:

cat /sys/kernel/debug/vgaswitcheroo/switch

this is the output:

0:DIS: :DynPwr:0000:01:00.0
1:IGD:+:Pwr:0000:00:02.0
2:DIS-Audio: :Pwr:0000:01:00.1

I see Pwr in both IGD and DIS, so i don't know if i turn of the DIS graphics?

any helps?

[QIII]

You shouldn't need to use vga-switcheroo any more.

This is the word on pxpress for ATI. It goes up through 13.10, but it should be applicable to Trusty as well.

This seems to have been the ticket to success for about half the people I have suggested it to so far.

[l0o0]

In the hardware requirements:
A MUXless system with an Intel or an AMD integrated card and an AMD discrete card.

But i don't think my laptop support muxless system.

[l0o0]

You shouldn't need to use vga-switcheroo any more.

This is the word on pxpress for ATI. It goes up through 13.10, but it should be applicable to Trusty as well.

This seems to have been the ticket to success for about half the people I have suggested it to so far.

In the hardware requirements:
A MUXless system with an Intel or an AMD integrated card and an AMD discrete card.

But i don't think my laptop support muxless system.

[martincigorraga]

Same here on an HP Pavilion dv7-4287cl:

Graphics: Card-1: Intel Core Processor Integrated Graphics Controller bus-ID: 00:02.0 chip-ID: 8086:0046
Card-2: Advanced Micro Devices [AMD/ATI] Madison [Mobility Radeon HD 5650/5750 / 6530M/6550M] bus-ID: 01:00.0 chip-ID: 1002:68c1