Icon sometimes turns into generic "blank paper" icon

I can confirm this on Feisty. You are running Feisty too?
Tonio_ is working on fix.

I am running Feisty. Pretty trivial but annoying you know? :-)

Seems to be fixed now.

The "CPU Frequency"-icon in the tool tip is still a generic "blank paper".

You're right. Same here. I hadn't noticed that.

Just upgraded today to kde-guidance-powermanager 0.7.1~svn20070109-0ubuntu1
The battery icon had been fixed in the last upgrade but this one seems to break it again. I'm also not getting a cpu frequency now.

Fix released for Feisty

I'm running kde-guidance-powermanager 0.7.1~svn20070111-0ubuntu2 in Feisty.
Powermanager doesn't start when system boots. Running guidance-power-manager from the command line results in:
Traceback (most recent call last):
  File "/usr/share/python-support/kde-guidance/guidance-power-manager.py", line 1021, in ?
    mainWindow = PowermanagerApp(None, "main window")
  File "/usr/share/python-support/kde-guidance/guidance-power-manager.py", line 965, in __init__
    self.pmwidget.prepare()
  File "/usr/share/python-support/kde-guidance/guidance-power-manager.py", line 117, in prepare
    self.poll(False)
  File "/usr/share/python-support/kde-guidance/guidance-power-manager.py", line 595, in poll
    self._updateCpuWidgets()
  File "/usr/share/python-support/kde-guidance/guidance-power-manager.py", line 759, in _updateCpuWidgets
    cpustate = self.powermanager.getCpuState(cpu)
  File "/usr/share/python-support/kde-guidance/powermanage.py", line 337, in getCpuState
    state['cur'] = int(_readValue("/sys/devices/system/cpu/"+cpu+"/cpufreq/scaling_cur_freq"))/1000
  File "/usr/share/python-support/kde-guidance/powermanage.py", line 42, in _readValue
    fhandle = open(file)
IOError: [Errno 2] No such file or directory: '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq'
Error in sys.excepthook:
Traceback (most recent call last):
  File "/var/lib/python-support/python2.4/apport/python_hook.py", line 44, in apport_excepthook
    binary = os.path.normpath(os.path.join(os.getcwdu(), sys.argv[0]))
IndexError: list index out of range

Original exception was:
Traceback (most recent call last):
  File "/usr/share/python-support/kde-guidance/guidance-power-manager.py", line 1021, in ?
    mainWindow = PowermanagerApp(None, "main window")
  File "/usr/share/python-support/kde-guidance/guidance-power-manager.py", line 965, in __init__
    self.pmwidget.prepare()
  File "/usr/share/python-support/kde-guidance/guidance-power-manager.py", line 117, in prepare
    self.poll(False)
  File "/usr/share/python-support/kde-guidance/guidance-power-manager.py", line 595, in poll
    self._updateCpuWidgets()
  File "/usr/share/python-support/kde-guidance/guidance-power-manager.py", line 759, in _updateCpuWidgets
    cpustate = self.powermanager.getCpuState(cpu)
  File "/usr/share/python-support/kde-guidance/powermanage.py", line 337, in getCpuState
    state['cur'] = int(_readValue("/sys/devices/system/cpu/"+cpu+"/cpufreq/scaling_cur_freq"))/1000
  File "/usr/share/python-support/kde-guidance/powermanage.py", line 42, in _readValue
    fhandle = open(file)
IOError: [Errno 2] No such file or directory: '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq'
power-manager: ERROR: Communication problem with power-manager, it probably crashed.

This is a different issue, it has been reported elsewhere and is fixed already. Thanks for the note anyway.

https://launchpad.net/ubuntu/+source/kde-guidance/+bug/78891

Thank you. How do I apply the patch?

On 1/12/07, sebas <email address hidden> wrote:
>
> This is a different issue, it has been reported elsewhere and is fixed
> already. Thanks for the note anyway.
>
> https://launchpad.net/ubuntu/+source/kde-guidance/+bug/78891
>
> --
> Icon sometimes turns into generic "blank paper" icon
> https://launchpad.net/bugs/75531
>

Locate the file powermanage.py, go to the same directory, then apply the patch with "patch -p0 < dont-barf-when-cpufreq-is-broken.diff"

(You'll have to apply the patch as root, otherwise you won't be able to write to that file.)

Thanks! Works now.

Hrm. After rebooting, though I can't see how that would have changed anything... attempting to run guidance-power-manager results in :

daniel@ubuntu:~$ power-manager: ERROR: Communication problem with power-manager, it probably crashed.

Weird.

This is false alarm (bug in PyKDE we use for dcop) and can be ignored.

True enough. I've seen it before and ignored it. Problem is that the tray icon isn't showing up so I thought it had crashed. I realized it was running when I unplugged AC and saw the notification. Still no icon though.

Sorry. Looks like my above was actually a Beryl problem. Working fine now.