vga_switcharoo not working, please help!

**Cheetah1933** · January 6th, 2011

My problem is that I am trying to use switchable graphics with vga_switcharoo. I googled "ubuntu on HP envy 14" before I started, and all reports said that it works fine with my computer. Here are the commands that I am using:

Code:

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

Turns on the unused graphics card.

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

Turns off the unused graphics card.

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

Switches to integrated graphics

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

Switches to dedicated graphics

I can here the computer switch between cards, when the fans switch, but it delivers no change in performance while playing games, and when I run the command

glxinfo | grep "renderer string"

It tells me it that it is still rendering from the battery saving intel card, rather than the ATI gaming card. I can not get it to switch from the intel card, no matter what I do.

Please help me. I'm so sorry if I'm making stupid mistakes, but I can't get it to work.

System Specs:
Specs:ATI Mobility Radeon 5650
500GB (7200RPM) Hard Drive (SATA)
Intel Core i5-450M processor 2.40GHz with Turbo Boost Technology up to 2.66 GHz
4gb of ram
Ubuntu 10.10 Maverick Meerkat

**Cheetah1933** · January 6th, 2011

bump.

**Marc128000** · January 17th, 2011

Perhaps the drivers for the ATI card are not installed? Also I believe that right now you still need to restart the xserver in order for the cards to switch. I'm still looking into this on my Hp Envy 14. In the near future I'll have a post detailing any info I can gather in my blog. Link can be found in my profile.