powersaved initscript errors on Via Nehemiah [patch-supplied]

Shell trace for /etc/init.d/powernowd.early

Shell trace for /etc/init.d/powernowd

This has taken an interesting turn of events on Gutsy. The script still initially fails as it can't find a cpufreq interface to talk to however it is now possible to
modprobe longhaul
return the powernowd script and have it scale the CPU appropriately.

Here's the output of lspci:
00:00.0 Host bridge: VIA Technologies, Inc. VT8623 [Apollo CLE266]
00:01.0 PCI bridge: VIA Technologies, Inc. VT8633 [Apollo Pro266 AGP]
00:0f.0 Ethernet controller: VIA Technologies, Inc. VT6105 [Rhine-III] (rev 8b)
00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80)
00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80)
00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80)
00:10.3 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 82)
00:11.0 ISA bridge: VIA Technologies, Inc. VT8235 ISA Bridge
00:11.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)
00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 50)
00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 74)
01:00.0 VGA compatible controller: VIA Technologies, Inc. VT8623 [Apollo CLE266] integrated CastleRock graphics (rev 03)

Version information:
Gutsy Tribe 5 liveCD

I don't know if this is helpful but I made the changes below to /usr/share/powernowd/cpufreq-detect.sh to get powernowd to load the right module for the newish VIA C7 processor. It should also fix the 'unexpected operator' bug (at $CPU_FAMILY == 6), which has kept the script from loading the longhaul module.

--- cpufreq-detect-orig.sh 2006-12-19 01:35:34.000000000 +0100
+++ cpufreq-detect.sh 2007-09-11 16:47:18.000000000 +0200
@@ -81,7 +81,11 @@
     ;;
     CentaurHauls*)
     # VIA
- if [ $CPU_FAMILY == 6 ]; then
+ # If the CPU has the est flag, it supports enhanced powersaver and should
+ # use the e_powersaver driver
+ if [ "`grep est $CPUINFO`" ]; then
+ MODULE=e_powersaver;
+ elif [ $CPU_FAMILY = 6 ]; then
  MODULE=longhaul;
     fi
     ;;

The bug should be fixed by the upload to my PPA: https://launchpad.net/~blueyed/+archive/+index?field.name_filter=powernow

Please test it and provide feedback if it works. Thanks.

(The actual patch is attached to bug 67341)

It works. Below is some output from a VIA EPIA SP13000 (C3 processor) after purging and reinstalling from your PPA. It works also on an EX15000 (C7 processor), where the e_powersaver module is loaded if available.
Both tested with Gutsy (live CD and up-to-date installation respectively).

# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_driver
longhaul
# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
ondemand
# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors
userspace powersave ondemand conservative performance
# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies
1330000 532000 1197000 1263000 598000 731000 798000 931000 1064000 665000 864000 997000 1130000 1330000 1197000
# cat /proc/cpuinfo
processor : 0
vendor_id : CentaurHauls
cpu family : 6
model : 9
model name : VIA Nehemiah
stepping : 8
cpu MHz : 532.000
cache size : 64 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr cx8 sep mtrr pge cmov pat mmx fxsr sse up rng rng_en ace ace_en
bogomips : 1068.02
clflush size : 32

powernowd (0.97-2ubuntu2) hardy; urgency=low

  [ dAniel hAhler ]
  * debian/init.d:
    - skip use_ondemand if $OPTIONS != "-q" are given (LP: #67341)
    - activate [...]/cpufreq/ondemand/ignore_nice_load in
      use_ondemand, when using ondemand governor instead of powernowd
      (LP: #60042)
    - Use /sys/devices/system/cpu/cpu[0-9]*/ to match CPUs and
      test if it is a directory (LP: #173711, LP: #107820)
    - Do not use "double slashes" in paths to avoid confusion
  * debian/cpufreq-detect.sh:
    - load e_powersaver if CPU has est flag (LP: #117446)
    - fix comparison for CPU_FAMILY=6 (LP: #162524)
    - use /bin/sh instead of /bin/bash for clarification
      (LP: #162524)
    (Patch from Jacob Nielsen, Ralph Janke)

  [ Steve Kowalik ]
  * Correct spelling of Original in Original-Maintainer.

 -- Steve Kowalik <email address hidden> Tue, 18 Dec 2007 19:49:36 +1100