I have been using switcheroo to turn off my ATI Radeon HD5650 using the switch:
echo OFF > /sys/kernel/debug/vgaswitcheroo/switch
This has worked perfectly. I've added it to
The Intel graphics card is fine for most of my day to day work and I get huge battery life compared to the Radeon card.
Lately though, I've been trying to run some graphically intensive apps which will not run under the intel chipset.
If I try to run:
echo ON > /sys/kernel/debug/vgaswitcheroo/switch
my laptop (Acer TimelineX 3820tg) just crashes - I have to REiSUB to recover.
My questions are:
- How am I supposed to turn the ATI card back on when needed?
- Assuming I'm doing the right thing by using
echo ON > /sys/kernel/debug/vgaswitcheroo/switch- should I file a bug report? and if so where?
Any feedback would be most appreciated.
I'm currently running Ubuntu 11.04 on (as mentioned) an Acer TimelinX 3820tg using the gnome classic desktop.