Questions tagged [vgaswitcheroo]

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

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7 votes
3 answers
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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/...
user270817's user avatar
6 votes
2 answers
16k views

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 ...
user33831's user avatar
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3 votes
1 answer
8k views

How to switch between Gfx cards on Macbook Pro 15" 8.2

I have a Macbook 15" Pro 8.2 Which apparently is supposed to be switchable between the GFX cards with vgaswitcheroo. But /sys/kernel/debug/ contains no switcheroo folder. syslog gives me this. [ ...
tomodachi's user avatar
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2 votes
3 answers
19k views

I can not find /sys/kernel/debug/vgaswitcheroo/switch

I have enable switcheroo in kernel config . Why is there not /sys/kernel/debug/vgaswitcheroo/switch ? Linux ubuntu-raid-w500 2.6.38-10-generic #46-Ubuntu SMP Tue Jun 28 15:07:17 UTC 2011 x86_64 ...
waterloo2005's user avatar
  • 2,037
4 votes
3 answers
9k views

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 ...
Michael's user avatar
  • 41
6 votes
3 answers
15k views

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/...
Ticiano Arraes's user avatar
5 votes
2 answers
4k views

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 ...
lorenzo-s's user avatar
  • 485
4 votes
3 answers
11k views

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 ...
Voii's user avatar
  • 71
3 votes
2 answers
8k views

No vga/vgaswitcheroo in /sys/kernel/debug (Ubuntu 13.10)

I am aware of some of the other threads on this problem, but I have tried the options found in those without success: sudo su cat /sys/kernel/debug/vgaswitcheroo/switch gives cat: /sys/kernel/debug/...
fpghost's user avatar
  • 1,659
3 votes
1 answer
5k views

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 ...
cotique's user avatar
  • 31
2 votes
1 answer
2k views

vga_switcheroo and Intel HD 3000 on Ubuntu 12.04

I'm trying to get vga_switcheroo to enable my integrated Intel HD 3000 instead of my ATI card. My problem is that there is no vgaswitcheroo directory in /sys/kernel/debug/ on my system. > grep -i ...
Ikalou's user avatar
  • 41
1 vote
1 answer
4k views

How to enable vga switcheroo on an Asus U41S?

I have Asus U41S notebook with 2 wideocards, Intel HD Graphics 3000 and GeForce GT540M. I want to turn off the GF videocard, and work only with Intel. On the internet I found out how to do this ...
Nikita Shiman's user avatar
0 votes
1 answer
640 views

Ubuntu 13.10 64bit does not detect intel graphic card!

I have installed ubuntu 13.10 64bit on my laptop. The problem I have is high gpu temperature and I want to switch to my Intel graphic card but my system just detects Nvidia card. Here is my CPU link ...
Farshad Foroughi's user avatar