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/?id=f244d8b623dae7a7bc695b0336f67729b95a9736 with this rawhide kernel optimus works fine with acpi pm events (laptop lid close+open). BR, Paweł.
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