sony-vaio-z-series team mailing list archive

[Nifty <violentsense@xxxxxxxxx>]

Just updated kernel in Ubuntu 9.10 to 2.6.31-15 (from 2.6.31-14) with
"Update Manager".
After this update - script /etc/init/switch-x-to.conf failed, due to
delays in initialization of "speed_stamina" device
(/sys/devices/platform/sony-laptop/speed_stamina).
This problem also applies to the old (2.6.31-14) kernel, but it appears
not so often.

So I make small changes to the script: 
----------------------------------------------------------------
--- switch-x-to.conf	2009-11-09 09:35:38.519835074 +0300
+++ switch-x-to.conf	2009-11-09 09:38:39.039874142 +0300
@@ -17,6 +17,9 @@
     speed='false'; gc='intel';
     mod='sony-laptop'; moddir="/lib/modules/`uname -r`";
     modfilename="$(modinfo $mod|grep ^filename:|awk '{print $NF}')";
+    while ! grep -qs -e speed -e
stamina /sys/devices/platform/sony-laptop/speed_stamina; do
+      sleep 1
+    done
     grep -qs speed /sys/devices/platform/sony-laptop/speed_stamina && 
     ! lspci|grep -qs "VGA compatible controller: Intel" &&
speed='true';
     $speed && gc='nvidia';
----------------------------------------------------------------

Now it works.