From 2822d1630ca0395a9addafe84474f02b36f11807 Mon Sep 17 00:00:00 2001 From: Peter Wu Date: Tue, 28 May 2013 19:40:57 +0200 Subject: [PATCH] README: mention kmod, workaround for T410 (Fixes GH-58) --- README.md | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/README.md b/README.md index db85847..248ad75 100644 --- a/README.md +++ b/README.md @@ -104,8 +104,9 @@ same behavior as: If not explictly set, the default behavior is not to change the power state of the discrete video card which equals to `load_state=-1 unload_state=-1`. -The Lenovo T410s laptop needs the module option `skip_optimus_dsm=1`, otherwise -it will detect the wrong methods which result in the card not being disabled. +The Lenovo T410 and Lenovo T410s laptops need the module option +`skip_optimus_dsm=1`, otherwise it will detect the wrong methods which result in +the card not being disabled. ### Disable card on boot @@ -116,6 +117,11 @@ get disabled on boot: bbswitch load_state=0 +Users of `kmod` should create `/etc/modprobe.d/bbswitch.conf` containing +`options bbswitch load_state=0` to set the default options. To load the module, +systemd users should create `/etc/modules-load.d/bbswitch.conf` containing +`bbswitch`. + You have to update your initial ramdisk (initrd) for the changes propagate to the boot process. On Debian and Ubuntu, this can performed by running `update-initramfs -u` as root.