two software update tray icons on login (lxde)

[Josh Blair]

i am using linux mint 11 lxde and while this may not be a 'problem' in so much that it's more of a nuisance, it is what it is. any time i login for the first time, two software update tray icons appear in the tray. after clicking one (doesn't matter which), i authenticate my password, the software center opens, and one of the icons disappears.

[Shiv Manas (shiv-n)]

While I've not yet been able to find the exact cause for this, I have devised a workaround which is useful to have for all versions of Mint: modify mintUpdate.pl to ensure that only one instance runs.

This can be done as follows: (sorin, 2009)

sudo apt-get install easy_install
sudo easy_install tendo

Then edit /usr/lib/linuxmint/mintUpdate/mintUpdate.py
and add the following lines somewhere at the top. I added it after the first line.

try:
    from tendo import singleton
    me = singleton.SingleInstance()
except Exception, detail:
    print detail
    pass

-------
References:
Sorin, Python: single instance of program, 2009, URL: http://stackoverflow.com/questions/3801870/python-single-instance-of-program

[Shiv Manas (shiv-n)]

Actually there is no need to do the above. Infact, after modifying the file I could no longer launch the mintUpdate GUI.

Looking at the code, there is already existing code in place to prevent another instance of mintUpdate running:

try:
    numMintUpdate = commands.getoutput("ps -A | grep mintUpdate | wc -l")
    if (numMintUpdate != "0"):
        if (os.getuid() == 0):
            os.system("killall mintUpdate")
        else:
            print "Another mintUpdate is already running, exiting."
            sys.exit(1)
except Exception, detail:
    print detail

---

No idea why it isn't working as it should; however; I managed to fix the problem by simply reinstalling mintUpdate!

sudo apt-get --reinstall install mintupdate

[Shiv Manas (shiv-n)]

Update: So reinstalling mintupdate didn't fix it. However I might have found another possible workaround. Edit mintUpdate.py and add the following lines:

from time import sleep
sleep(10)

This seems to have fixed it for me. Rebooted several times so far and I only see one instance of mintUpdate.

[Gwendal LE BIHAN (gwendal-lebihan-dev)]

This bug, or at least part of it, seems to actually be in lxsession : adding lxterminal to the startup applications in /etc/xdg/lxsession/Mint-LXDE/autostart also results in 2 instances of lxterminal being launched.

Here is the link to the LXDE bug report : https://sourceforge.net/tracker/?func=detail&aid=3407493&group_id=180858&atid=894869

I'll keep working on a workaroung to prevent mintupdate to launch twice.