HowTo: Fix being unable to click in Flash applications in Ubuntu 64-bit
Ubuntu 9.10 (Karmic Koala) has a curious bug on the 64-bit Intel/AMD version whereby on some systems you can play Flash perfectly, but the Flash application does not recognise any mouse clicks in it. This means in sites such as YouTube, you can’t click the mouse to play and pause, or seek in a video – you’re forced to use the keyboard.
This is a known bug with the flashplugin-installer package and is currently being worked on by Canonical. In the meantime, if you wish to fix the problem yourself now rather than wait for the official fix, just follow these instructions…
HowTo: Remotely collaborate with another user in a terminal
You do remote tech support for clients. One client calls you up needing assistance. You SSH into their machine as usual to check out the problem. You probably also have them on the phone so you can walk them through what you are doing or ask them questions, but making long support phone calls can be expensive if you’re doing it via a mobile phone or internationally and it’s tiresome to switch to an IM client window all the time to write comments, especially if the client is not running a graphical session and only has a text server console to look at.
Sometimes actions speak much louder than words, and it would be great for the client to be able to see what you are doing without cumbersome and bandwidth-hogging remote screen tools like VNC. Is there an easy way to collaborate in a terminal?
There certainly is…
HowTo: Fix a missing eth0 adapter after moving Ubuntu Server from one box to another.
Scenario: You have a box running Ubuntu Server. Something happens to the box and you decide to move the hard-drive to another physical machine to get the server back up and running. The hardware is identical on the other machine, so there shouldn’t be any issues at all, right?
The machine starts up fine, but when you try and hit the network, you can’t. Closer inspection using the ifconfig command reveals that there is no “eth0″ adapter configured. Why?
Here’s how to fix it.
HowTo: Restore the Windows Master Boot Record (without using a Windows CD) using Ubuntu Karmic.
You know how it is – you take a client’s Windows based machine, do a dual-boot installation of Ubuntu (which replaces the Windows Master Boot Record, or MBR, with GRUB and sets up an option to boot Ubuntu or Windows) so the client can evaluate Ubuntu, but then later on for whatever reason, Ubuntu is no longer wanted. It’s removed and you need to restore the system’s ability to natively boot Windows directly without a GRUB menu.
You’re probably thinking “why the hell would anyone want to do that?!”… well, the fact of the matter is you sometimes come across a client who is just too mind-set and refuses to use anything but Windows, so yes – sometimes you need to restore the Windows MBR, but how do you do that when you don’t have a Windows CD handy?
Well, here’s how to do it using nothing but an Ubuntu 9.10 Karmic LiveCD.
HowTo: Get a Microsoft Bluetooth Notebook 5000 mouse working under Ubuntu Jaunty.
The Microsoft Bluetooth Notebook 5000 mouse is an affordable, compact mouse that worked really well under Ubuntu up until Jaunty 9.04 when the Bluetooth stack changed so drastically that the mouse would not pair or work anymore.
While the Ubuntu-provided Bluetooth stack has not been updated to correct this problem yet, the Blueman Project that Ubuntu uses keeps marching on in development and the latest version of of the Bluez stack and Blueman applet finally corrects this problem.
Here’s how to employ it on your own setup.
HowTo: Fix MythTV’s Frontend not going full-screen in Ubuntu Jaunty.
The next version of Ubuntu is here – 9.04 aka “Jaunty Jackalope”. Along with a wealth of new features comes a wealth of new minor bugs to fix. Not enough to be show-stoppers, but enough to annoy the heck out of you, and here’s a doozy.
If, like most people, you have Compiz enabled and you start the MythTV Frontend, you will notice that rather than go full-screen, Myth will start as a window, essentially, even if your settings within Myth say to go full-screen.
In a single-screen scenario, the MythTV window will start just underneath the upper Gnome panel and the lower Gnome panel will sit over the top of the Myth window, obscuring part of the display. Proof that it’s a window can be found by holding down the ALT key and then dragging the MythTV display around with your mouse.
If you’re like me and use two displays with Myth being run on the second screen, you will see a gap at the top of the screen that is the same height as the upper Gnome panel and you will see your wallpaper showing through there, as shown in the illustration below.
Click for full size (520K)
Here’s how to fix this problem.
EDIT June 2010: This problem still plagues Ubuntu 9.10 and 10.04, and this fix will work for those releases as well.
HowTo: Uninstall software that makes Ubuntu’s boot process fail
Whilst rebuilding a friend’s Medion laptop, in my attempt to get the Wireless LAN adapter working, I set about trying to use ndiswrapper and the Windows drivers. Unfortunately upon rebooting, the system failed to boot, always locking up when the boot process tried to load the Windows driver. It was so bad that I wasn’t even able to boot to a recovery prompt because it still attempts to load the hardware drivers before dropping you into a root shell.
The solution was simple – get rid of ndiswrapper and that will prevent the offending Windows driver loading which I can then delete afterwards, but how do you do this when you can’t even boot to a terminal?
With the assistance of an Ubuntu LiveCD (on USB stick in this case), I was able to remove ndiswrapper without needing to do a complete re-install of the system. Here’s how to do it.
HowTo: Get SigmaTel STAC 9200 chipset audio working in Ubuntu Intrepid
I was asked to rebuild a friend’s old Medion laptop – you know, those ones Aldi used to sell for peanuts. It’s an AMD Turion64 based machine with NVidia GeForce Go 6100 gfx and SigmaTel STAC 9200 “High Definition” audio and a 1280×800 display. I have to admit it’s not a bad little machine.
Anyway, the default installation of Ubuntu Intrepid picks up everything except the Fn keys, wireless LAN adapter and the audio. The wireless LAN adapter has proven to be a bit of a challenge, so if I suss it out, I’ll write up about it later. Fn keys I’m not really fussed about (and neither is the laptop’s owner), but we needed the audio.
HowTo: Eliminate the Green Bar on video playback in Totem (and other media players)
Some people, including myself, have experienced an annoying issue whereby some videos you playback, particularly those encoded with the Xvid codec, have an apparent corruption of video represented by a thick Green Bar(TM) somewhere on the image. Generally the colours are askew as well and sometimes sections of the image are blurred. You might assume that the original video is corrupt in some way, but this is not the case as the video will typically run fine through media players on other platforms.
HowTo: Fix strange font appearance in Vuze (Azureus)
For those of you who use the Vuze BitTorrent client (formerly known as Azureus), you may have come across this interesting quirk whereby most of the menus, tabs and other key texts within the client window change to an unintelligible font as follows:
This is caused by the client losing its language settings. You’re looking at the Armenian language. To fix this, simply:
- Go to the fifth menu (which is the Tools menu).
- Select Configuration Wizard from the menu and a window appears.
- Change the language to the language you prefer, eg: English, and all of a sudden all windows will suddenly appear correctly again.
- Click Cancel to close the window (there’s no need to go through the entire configuration wizard).
Problem solved!
