Arch Linux

mir91

Banned

Registered: 2013-11-17

Posts: 143

Permanent bumblebee kernel fix

When switching to nvidia gpu via bumblebee daemon, there's maybe a 1 in 3 chance that dmesg will show "gpu has fallen off the bus", fans go to full speed and the nvidia-gpu becomes unusable, until you restart the pc.
A permanent fix is to modify config.x86_64 like this:

--- config.x86_64_<---->2014-09-12 00:06:39.000000000 +0200
+++ config.x86_64<----->2014-09-12 20:47:54.135043831 +0200
@@ -508,9 +508,10 @@
 CONFIG_SECCOMP=y
 # CONFIG_HZ_100 is not set
 # CONFIG_HZ_250 is not set
-CONFIG_HZ_300=y
+#CONFIG_HZ_300=y
 # CONFIG_HZ_1000 is not set
-CONFIG_HZ=300
+CONFIG_HZ_1000=y
+CONFIG_HZ=1000
 CONFIG_SCHED_HRTICK=y
 CONFIG_KEXEC=y
 # CONFIG_CRASH_DUMP is not set

However, having to compile your own kernel on every kernel upgrade is annoying, so I was wondering if this fix could just go into the repository kernel package directly.
Thanks!