On Thursday 09 of January 2014 10:29:12 Shibi wrote:
Hi,
after updating my system to fedora 20 I encountered multiple problems
1- Kernel package 3.12 crashes every time I try to use acpi_call or
vgaswitcheroo to turn off my discrete graphics card (ATI Radeon HD 5650),
every time I try acpi_call or vgaswitcheroo a abrt notification about
kernel package appears and vga switcheroo folder disapears from
/sys/kernel/debug folder
sounds like my problems with nvidia optimus. the 3.12 kernel contains bugs
around gpu/acpi/power-managment. i'm using the 3.13-rcX kernel from rawhide
which contains fresh fix:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?i...
with this rawhide kernel optimus works fine with acpi pm events (laptop lid close+open).
BR,
Paweł.