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Questions tagged [vgaswitcheroo]

Questions related to switching GPUs using vgaswitcheroo on hybrid graphics systems.

vgaswitcheroo is actually a hack for manually toggling the power of graphics cards, or even switching between graphics cards on systems. It accepts commands and gives status information through the special "file" /sys/kernel/debug/vgaswitcheroo/switch.

How to use it is described at https://help.ubuntu.com/community/HybridGraphics#Using_vga_switcheroo

68 questions
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How can I disable ATI discrete graphic GPU at startup in Ubuntu 14.04 without BIOS?

I could disable ATI discrete graphics in Ubuntu 13.10 with this command: echo OFF > /sys/kernel/debug/vgaswitcheroo/switch But in Ubuntu 14.04 it does not work. cat /sys/kernel/debug/vgaswitcheroo/switch shows the same: 0:IGD:+:DynPwr:0000:01:05.0…
user270817
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How can I disable one Graphics card/GPU on my system? (Interchangeable graphics involved)

The problem I have is this: I have a DELL laptop with 2 GPUs, an Intel integrated and high performance of AMD Radeon HD a 6470m, but Ubuntu does not detect it. However, the two are active at the same time, which causes the equipment to overheat, and…
Felix
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How to permanently switch off discrete graphic card?

I got a integrated GD, which is Intel, and another discrete GD, AMD Radeon 6490 HD I am using ubuntu 11.10 1st, when I boot into Windows, my GD is indeed AMD Radeon 6490 HD, but when I boot into Ubuntu, it shows that I have AMD Radeon 6470…
user33831
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Discrete graphics always DynOff

I'm using the default open source driver and when I run # cat /sys/kernel/debug/vgaswitcheroo/switch I always have my discrete AMD adapter as DynOff. I tried echo ON > /sys/kernel/debug/vgaswitcheroo/switch But nothing happens. What should I…
Ticiano Arraes
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5
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0 answers

How can I choose which GPU to use from grub using vgaswitcheroo?

I have a notebook with switchable AMD/Intel Graphics. I use, successfully, vgaswitcheroo to choose the active GPU and disable the unused one by a script in rc.local. However, I would like to be able to choose the active GPU at startup, ideally by a…
nicocarbone
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2 answers

Ubuntu 15.04 freezes for a second every 6-10 seconds, PCI/Radeon related messages in kern.log

Tonight I made a fresh install of Xubuntu 15.04 on my laptop, an Acer Aspire TimelineX 4820TG. I was running 14.04 LTS before, and all was fine. I didn't have lot of stuffs to save, so I went for a complete uninstall and fresh re-installation, in…
lorenzo-s
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5
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1 answer

Thinkpad T530 with Optimus and Docking Station

I have a Lenovo Thinkpad T530 with Optimus video, which is not supported on 12.04.1. I don't normally need the discrete (nVidia) graphics, so I turn it off in the BIOS settings to achieve longer battery life (and so that the screen dimmer will…
Vic Boudolf
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4
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3 answers

vgaswitcheroo not selecting discrete card

I have a Dell 5110 laptop that has hybrid graphics. I have tried using vgaswitcheroo to some limited success, but I have still not been able to select my discrete ATI 6470 card. I use the following commands with the following…
Michael
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4
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3 answers

vgaswitcheroo doesn't work on 14.04 - discrete Radeon always on, Dell Vostro 3350

I've a following problem - I've just upgraded from 13.10 to 14.04 on my Dell Vostro 3350 and I can't turn off the discrete graphics. As instructed here and following HybridGraphics I managed to permanently turn off my secondary Radeon graphics in…
Voii
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1 answer

AMD/AMD GPU Switching

I have two GPU's in my laptop, both of which are AMD. Whenever I use the Catalyst Control Centre to change the GPU, nothing changes after reboot. In fact, when I do the fglrxinfo command the terminal only reports seeing one GPU, the integrated one…
MonoAlithica
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How do I get the Radeon HD 6650M in my Lenovo G770 laptop working?

As stated in the topic, I have the following problem: there're two VGAs in my Lenovo G770 laptop with Ubuntu 11.04, namely Intel Mobile HD and AMD Radeon HD 6650M. And if integrated videocard is working quite fine, the discrete one doesn't work at…
cotique
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3
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Dell Precision 7510 external monitor

Has anyone managed to get some version of Ubuntu working well on a Dell Precision 7510? I have tried 14.04 and 15.10. The latter works ok, except for graphics. I am running on the Intel integrated, using i915 driver. It flickers occasionally, and…
Lars Albertsson
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Can't switch to Discrete GPU Hybrid Graphics ATI/intel

Just recently I had got my hybrid graphics working with DRI_PRIME=1. I obviously have the open source drivers. Now for some reason that I can't figure out it has stopped working. xrandr --listproviders Only shows my Intel card now as before it…
Vromoth
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UVD not responding; ATI/Intel Hybrid after upgrade to 13.04 and turning off ATI

First of all I am totally new to Ubuntu and Linux so I am still trying to learn commands and basics. My laptop is an Acer 4820TG with a hybrid Intel onboard and a ATI radeon mobility HD5650. Several months ago I installed Ubuntu 12.04 LTS as a dual…
RedViper
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1 answer

How to choose the VGA when setting up the X Server?

I have 2 options of VGA: lspci | grep VGA 00:02.0 VGA compatible controller: Cirrus Logic GD 5446 00:03.0 VGA compatible controller: NVIDIA Corporation GK104GL [GRID K520] (rev a1) It's an instance of Ubuntu running on Amazon EC2. When I open my…
Wagner Patriota
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