The GDM in Ubuntu changed a bit since Karmic. Now you no longer need to type in both username and password. Instead there is a list of users that shows up, similar to what we have in Windows and Mac. That way you don’t accidentally type in the password when you are supposed to be typing your user name. While this is a really nice way to login, Ubuntu added a drum sound which plays each time you arrive at the login screen - this can be when a user logs out or starts the computer. There is no simple way to disable that sound using GUI. There is however a simple command line which disables this login screen sound as lets you login silently.
If you are a sudoer, open up the terminal and type in:
sudo -u gdm gconftool-2 –set /desktop/gnome/sound/event_sounds –type bool false
The next time you logout, or restart the computer, the sound won’t be played again.
****
Update: The above methods doesn’t work for everyone. There have been a couple of other methods that have been known to work.
To actually disable the “login ready” sound you need to edit your /etc/gdm/custom.conf file.
sudo gedit /etc/gdm/custom.conf
Under the [greeter] section add the line:
SoundOnLogin=false
Another method that has worked for some is the removal of ubuntu-sounds package. This will remove all the event sounds as well, but your media should work just fine.
sudo apt-get remove ubuntu-sounds
These are some of the methods that have worked for several people. YMMV - unfortunately.
slash_boot Linux and OSS karmic koala, login screen, sound
The snapshot before the LTS version of Ubuntu is out now! Karmic Koala would be supported for about another year after which one will have to upgrade to Lucid Lynx, which would be coming out in April 2010, this the name Ubuntu 10.04 LTS.
Karmic has been functional on my machines since Alpha 3 - so no surprises await me as of today. But I would be posting some observations and neat tricks that one can use with Karmic Koala and Ubuntu Linux in general.
The first trick is to use a torrent for downloading the .iso image instead of downloading it directly from some mirror. The advantage of doing that is that you get much faster download rates when using P2P networks for downloading the .iso image, this is especially true for a week since the release, since the mirrors literally crawl to a halt from all the traffic following the release.
Karmic Koala (Ubuntu 9.10): Header used during release
The listing of all the torrents for Ubuntu 9.10 codenamed Karmic Koala can be found at:
Karmic Koala (Ubuntu 9.10) : List of releases on bit torrent
If you come across some performance issues, you can always take your questions to Ubuntu Forums, where you can search if someone has already resolved that issue, and if not, post a query.
slash_boot Linux and OSS karmic koala, Linux and OSS
The kernel 2.6.31-1 was on the list of upgrades in Ubuntu’s upcoming Karmic Koala release. The Koala is still in its Alpha 2 stage and almost all the other things usually go pretty well. However a kernel upgrade is always brings with it some uncertainty, some unexpected behaviour.
While 2.6.31-1 marks a bigger shift in kernel structure from 2.6.30-10, the older one seemed to have started working correctly after having brought about the first Green Screen of Death while booting with Ubuntu Linux. There were a few kernel upgrades to the older one which overcame the issues, I guess in grub.
Grub Options for 2.6.31-1
Ubuntu boots up until the stage where X starts
And then it drops to terminal
...with a screen pop-up showing failed X loading notification
Today’s upgrade to 2.6.31-1 was able to go past the grub stage and when the loading was complete, the display failed to load X. There was also some nvidia drivier update which might have destabilized the X, but apparently the X seems to be working correctly when I choose the older kernel at grub. So there must be some sort of a compatibility issue with the new nvidia update and the latest kernel.
This being the Alpha release, many packages are updated daily. It’s quite likely that a kernel patch would soon be out to make it play well with the nvidia driver. But so far, the easiest way to get X loaded is to boot using the older kernel, 2.6.30-10.
slash_boot Uncategorized 2.6.31-1, karmic koala
The upcoming release of Ubuntu 9.10 (Karmic Koala) is in its Alpha 2 stage at the moment. One outcome of having an alpha released installed on your machine is the massive amounts of daily updates - with a major kernel update every once in a while. Things were going pretty smooth with the Karmic Koala until it was on 2.6.30-9 kernel.
Just this morning, there were a bunch of updates listed in the update manager. Among the things that were in line for the upgrade was a brand new kernel, 2.6.30-10. The updating process itself went pretty well. Then when it was time to restart, I picked the newly updated kernel from the Grub expecting nothing unusual.
Booting options after updating to kernel 2.6.30-10
After selecting Kernel 2.6.30-10, all I got was a green screen and the computer refused to do anything past that point. The only alternative was to restart and boot with the 2.6.30-9 kernel which I am currently using to make this post.
Ubuntu Karmic Koala (Kernel 2.6.30-10): Green Screen Of Death
It not something one sees that often with Linux distros. I saw it today!
P.S.: The newer kernel 2.6.30-10 has been fixed. It boots and functions normally now.
admin Linux and OSS green screen of death, gsod, karmic koala, kernel 2.6.30-10, ubuntu
