7. March 2009
by Christoph
14 Comments
Ubuntu Jaunty Jackalope 9.04 will offer support for Ext4. A lot of users will try the new file system, especially since it will offer a huge performance boost. But it looks like that there is a massive downside. I quote from the bug report…
3. March 2009
by Christoph
16 Comments
Quite often I’ve got to scan documents and save them as PDF. Usually I do this with gscan2pdf but for just one page even such a great tool like gscan2pdf is too much. It takes more time to start the program, go through the menus etc. than the scan process itself.
As a simple work around I wrote scan2pdf. scan2pdf is a simple and small programm for the shell. It searches for a scanner, saves the settings to a config file, scans and saves the result into a PDF on your desktop. Continue Reading →
24. February 2009
by Christoph
45 Comments
I often stumple upon users who have problems playing audio. A common problem is that Adobe Flash (or another application) doesn’t play any sound even though other programs like Totem, Rhythmbox etc. work fine.
Usually those people have more than one sound device in their system. E.g. a internal sound card, a USB webcam with microphone and a USB headset. The problem is that that those users have more than one “sink” where applications can send their audio output to. Eventually you listen to music over your usb headset, muted your internal sound card and use a application which uses your internal soundcard as sink. The result: No sound with certain applications…
23. February 2009
by Christoph
3 Comments
Stefano called out and here we are. New blogs on Planet Ubuntu Weblogs. This is my first posting here on Ubuntu Weblogs and just a short hello here I am.
16. January 2009
by Christoph
24 Comments
[UPDATE 24.05.09]Zattoo discontinued their client for Linux… This howto is obsolet.[/UPDATE]
With Zattoo you can watch TV over the Internet. You don’t additionally hardware, a broadband Internet access is sufficient… Depending where you live you can receive a series of different TV-Channels. Sadly (or luckily) you can’t receive the popular German private channels Sat1, Pro7 oder RTL…
8. October 2008
by Christoph
69 Comments
When you study or work at the University of Karlsruhe you can have access to the services of the University or the Internet by installing the proprietary Cisco VPN Client. But to be frank, this programm is a pain in the ass. It’s proprietary, it needs kernel modules, you’ve got to patch it to run on current kernels. In short: Don’t use it, use vpnc. I’ll help you with it…
17. July 2008
by Christoph
20 Comments
When you install Ubuntu Server inside VirtualBox as a virtual machine you might run into problems. The installation itself works fine, but as soon as you reboot you’ll see this message
The kernel requires the following features not present on the CPU 0:6
Unable to boot – please use a kernel appropriate for your CPU
and Ubuntu server won’t boot. This is caused by ubuntu’s server kernel which supports Physical Address Extension (short PAE) which increases the maximum physical memory size from 4 Gib to 64 GiB, so that you can use more than 4Gib RAM even when you don’t use 64-Bit operating system.
29. April 2008
by Christoph
2 Comments
When you install Windows XP SP2 as virtual machine inside VMware, you might run inside the same problems like me. On the screen it looks like this…