Due to some problems, I had to reinstall fedora. I currently have fedora-19 with kernel version
I haven't installed NVIDIA drivers and am using the default nouveau drivers for graphics. Bumblebee and bbswitch got installed properly but bbswitch fails to turn off discrete graphics. I did
tee /proc/acpi/bbswitch<<<OFF but when I check the status it reports it on.
dmesg|grep bbswitch gives this:
[ 25.192983] bbswitch: module verification failed: signature and/or required key missing - tainting kernel [ 25.193158] bbswitch: version 0.7 [ 25.193165] bbswitch: Found integrated VGA device 0000:00:02.0: \_SB_.PCI0.GFX0 [ 25.193172] bbswitch: Found discrete VGA device 0000:01:00.0: \_SB_.PCI0.PEG0.PEGP [ 25.193316] bbswitch: detected an Optimus _DSM function [ 25.193325] bbswitch: Succesfully loaded. Discrete card 0000:01:00.0 is on [ 1383.773601] bbswitch: device 0000:01:00.0 is in use by driver 'nouveau', refusing OFF
Bumblebee-daemon is running but
optirun glxgears -info gives this:
[ 2441.794492] [ERROR]Cannot access secondary GPU - error: [XORG] (EE) Failed to load module "mouse" (module does not exist, 0) [ 2441.794545] [ERROR]Aborting because fallback start is disabled.
At present there is no file called
/etc/modprobe.d/ or in
/etc/modules-load.d/. Is it wise to create a file manually and add
bbswitch load_state=0to it ?
How do I switch off the discrete graphics card ? It happened quite smoothly in my previous fedora-17 which I fedupped to fedora-19. Isn't bumblebeed supposed to turn it off without manual intervention? How do I know if bbswitch is compatible with the kernel?
During one boot the graphics was turned off but it turned on again when i tried
optirun glxgears -info (which btw gave the same error). I reinstalled bbswitch and bumblebee but it doesnt solve the issue.