Arch Linux

Eschatokyrios

Member

Registered: 2007-09-22

Posts: 51

vgaswitcheroo entry in /sys/kernel/debug suddenly missing

I think this happened after I upgraded to 2.6.38 in testing, but I don't remember exactly when it disappeared. Anyway there's simply no vgaswitcheroo option in the debugfs, when there definitely used to be. I'm still mounting mount -t debugfs debugfs /sys/kernel/debug as per the vga_switcheroo instructions, there's other stuff there, just no vgaswitcheroo entry. I have an nvidia 540M with (unfortunately) optimus.

koral

Member

Registered: 2010-08-05

Posts: 26

Re: vgaswitcheroo entry in /sys/kernel/debug suddenly missing

Same here, I was glad to hear about asus-switcheroo until I realized I no longer have any vgaswitcheroo folder in /sys/kernel/debug, although debugfs is mounted. Was it removed from last kernel ?

koral

Member

Registered: 2010-08-05

Posts: 26

Re: vgaswitcheroo entry in /sys/kernel/debug suddenly missing

Up ?

olsman037

Member

Registered: 2011-06-17

Posts: 27

Re: vgaswitcheroo entry in /sys/kernel/debug suddenly missing

I think the solution in this post can help you...

https://bbs.archlinux.org/viewtopic.php?pid=951136

see post #4

Last edited by olsman037 (2011-06-20 12:26:59)