Ubuntu: Jaunty vs. Evolution, Xorg, Etc …

May 15, 2009 at 2:47 pm Leave a comment

ubuntu_jaunty_jackalopeI have been running Ubuntu for several years now, starting with Dapper Drake back in 2006. Not being much of a desktop/graphics person, I’ve slowly mended my ways as I’ve seen Ubuntu become a bridge between the “who needs a GUI, use CLI” hardcore geeks and “just give me something I can point-n-click” crowd allowing Linux to become a main stream OS.

Having experienced a number of issues upgrading version the moment the latest and greatest is released, I am usually apprehensive about just doing a distribution upgrade the second it becomes available. However, a couple of months ago my much loved Dell XPS M1710 was replaced by an HP Compaq 6510b. It has been a lesson in frustration getting anything to work the way it should on the new laptop, mostly because of the crappy Intel graphics controller.

I had been following the forums related to the beta testing of Jaunty Jackalope (9.04) as the video acceleration default was being moved off EXA in favor of the more robust UXA. The changes looked promising enough that I decided to jump over to Jaunty shortly after it’s release in hopes that it would solve some of my issues. However, as before, it only created more problems.

From the very start I had issues with application hangs and system lock-ups. My primary issue was with Evolution-Exchange, which is my primary means of communication at work. As we have an Exchange server without IMAP enabled, I’m pretty much married to Evolution and, despite it’s quirks, have grown used to it over the years. Due to the recent release, there was very little in the way of non-beta related documentation. Searching Launchpad, however, turned up a few people having similar issues. I found bug #365588 which pretty much described the problems with Evolution andbug #359392 which outlines the issues with system freezes and, sometimes, crashing.

Doing a little more digging I discovered two important facts. First, IPV6 is now a kernel built-in rather than a loadable module as in previous versions. Though it is not a show stopper, it can be tricky to disable. The temporary ‘fix’ is as follows, though changes will be overwritten on reboot:

# echo 1 > /proc/sys/net/ipv6/conf/all/disable_ipv6
# echo 1 > /proc/sys/net/ipv6/conf/default/disable_ipv6
# echo 1 > /proc/sys/net/ipv6/conf/lo/disable_ipv6
# echo 1 > /proc/sys/net/ipv6/conf/eth0/disable_ipv6
# echo 1 > /proc/sys/net/ipv6/conf/wmaster0/disable_ipv6
# echo 1 > /proc/sys/net/ipv6/conf/wlan0/disable_ipv6

To make a more permanent change, edit /etc/sysctl.conf and add the following lines:

net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1
net.ipv6.conf.eth0.disable_ipv6 = 1
net.ipv6.conf.wmaster0.disable_ipv6 = 1
net.ipv6.conf.wlan0.disable_ipv6 = 1

Followed by a reboot or by running:

# sysctl -p /etc/sysctl.conf’

The second fact is that there were issues with certain Intel graphics controllers during alpha/beta testing and the powers that be decided to omit certain settings from the Jaunty upgrades to enhance stability over enabling additional features. However, there is some hope of fixing these issues. By following the instructions in a post on the Ubuntu forums I was able to correct a lot of the issues not only with system freezes, but with many of my application related issues as well. Additionally, if you are having issues with compiz, you might also be inclined to read this article as well.

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Entry filed under: Information Technology, Informational, Jaunty Jacklalope (9.04), Linux, Research, Technology, Tests, Ubuntu. Tags: , , , , , , , , .

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