levesque's questions

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There's an issue with an Alpha/Beta Release of Ubuntu, what should I do?

Currently, I can see them in the software center, but they say its not supported for my version of Ubuntu. Now, I know 12.10 is just in Beta, but I see no reason why they would not be supported. Is there one?

Is the default setting for such packages to say they are not supported? What is the difference between 12.04 and 12.10 that would make it not supported? I'm pretty sure if I just download the standalone .sh install script its going to work, but I'd rather do so through the software center and get updates.

When I switch applications with alt-tab under Unity (full version, not the 2d one), my open applications are displayed, represented by their respective icon. These icons are quite huge... everytime I hit alt-tab I'm a bit surprised by the thing that pops in my screen. I'd prefer a much smaller icon size.. is there a way to change this somewhere?

They seem to be ~96x96, I'd aim for 48x48 :)

I am running Ubuntu 10.04 with an nvidia geforce GT 240 card. I installed nvidia-current-dev with apt-get, thus I got a bunch of headers and lib files for OpenCL. However, I am unable to figure out if I have OpenCL 1.0 or 1.1 (could be 1.2, though I doubt it).

Does anyone know a way to figure out which version of OpenCL comes with the nvidia-current-dev package (version: 195.36.24-0ubuntu1~10.04.2)?

If not, is there another place where I could get an answer?

EDIT: I previously thought this was related to mouse, but I have been experiencing these issues without a mouse plugged-in during the past weeks. I therefore rewrote the description.

The two-finger scrolling on my UX31 works just fine, but sometimes it stops working, the cause is unknown. Multitouch also breaks whenever I go in sleep mode.

Logging out and back in fixes the issue, till it happens again (sleep, or the unknown source)

Does this sound familiar to anyone here?

I'm not sure I understand what this means. How can Ubuntu recommend something that isn't in the repository? Am I supposed to fetch the source code and install myself? Why isn't there a biber package?

To be clear, I can use biblatex without biber, but it preferable to use them together.

Update: OK, I guess I'll download the biber source. I'd rather not install the whole texlive, because it's cumbersome to say the least.

By the way, biber is a terrible package name - when searching for it on Google I keep getting it corrected to Bieber, argh.

I have some unpartioned space on my usb HDD and I would like to use that space to setup a live ubuntu installation partition. I have a lot of data in other partitions that I want to keep, so I cannot just plug in the usb creator because it seems to want to format the whole thing...

What can I do?

I don't want to see applications that are opened on my other desktops (workspaces) in my Unity launcher (or sidebar, whatever it is called). I find it annoying and would prefer if Unity just dealt with one desktop/workspace at a time.

Is there a way to do this? I have a feeling the answer will be no, but I'm asking anyway... maybe it will be implemented in future versions.

I can't seem to be able to connect to google talk using either pidgin or empathy after upgrading to Ubuntu 10.10 (fresh install).

I do not know why... empathy just writes "Connecting ..." forever and never connects. What can I do from there?

Google talk's web interface works just fine for me so I doubt it is a firewall issue.

EDIT: In fact sometimes it's able to connect (empathy), it just takes a LOOONG time (I'd say about 5 mins), longer than I am willing to wait. On the other hand, the web interface is able to connect in seconds.

I have an Asus u30jc laptop, which comes with the Optimus prime graphics card switching technology that is now supported under 2.6.35, so I decided to give it a try. First I made sure the discrete graphics card was activated and then I installed the drivers proposed by the ubuntu software repository (nvidia-current).

However, after rebooting all I got was a command prompt.

My graphics card is a nvidia 310M. This is on Ubuntu 10.10 64 bits.

What can I do to diagnose/identify the source of this problem?

UPDATE: The messsages in my syslog tell me to check the xorg log:

Oct 11 12:42:59 u30jc-test gdm-binary[1095]: WARNING: GdmDisplay: display lasted 0.053144 seconds
Oct 11 12:42:59 u30jc-test gdm-simple-slave[1450]: WARNING: Unable to load file '/etc/gdm/custom.conf': No such file or directory
Oct 11 12:42:59 u30jc-test gdm-binary[1095]: WARNING: GdmDisplay: display lasted 0.038176 seconds
Oct 11 12:42:59 u30jc-test gdm-binary[1095]: WARNING: GdmLocalDisplayFactory: maximum number of X display failures reached: check X server log for errors

Which I did. I found this message in my /var/log/Xorg.0.log :

Fatal server error:
[   113.540] no screens found
[   113.540]

What does that mean?

That's about it. Whenever I press the eject button on my cd player, nothing happens. CD player is not the cause of the problem because this never happens to me under Windows. Any suggestions?

In addition, running the eject command from a terminal also does nothing.

More information : I am running ubuntu 10.04 64 bits, have previously read a CD (like 2 hours ago), which I ejected using nautilus because I couldn't eject it using the same hardware button.

Here is the output of the command 'eject -v' :

eject: using default device `cdrom'
eject: device name is `cdrom'
eject: expanded name is `/dev/cdrom'
eject: `/dev/cdrom' is a link to `/dev/sr0'
eject: `/dev/sr0' is not mounted
eject: `/dev/sr0' is not a mount point
eject: `/dev/sr0' is not a multipartition device
eject: trying to eject `/dev/sr0' using CD-ROM eject command
eject: CD-ROM eject command failed
eject: trying to eject `/dev/sr0' using SCSI commands
eject: SCSI eject succeeded

UPDATE: Ok I would like to add that I am unable to reproduce this bug, as I upgraded to Ubuntu 10.10 using said CD, and behavior seems ok now. It was probably the upgrade to a more recent kernel that did the trick. Thanks everyone!

I use three different keyboard layouts, USA, Can and Rus. My default layout is USA.

I have set the keyboard layout to be system-wide instead of application specific because it allows me to keep track of only one status. However, whenever I open a new application, the system-wide layout is always reset to the default layout. For example, if my layout was set to Can and I opened vlc, the layout would then switch back to USA for the whole system. I don't quite understand how or why this could be a desirable behavior...

Do you have any idea as how to get rid of this?

If not, where can I open up a feature request?

EDIT: I did some more testing and in fact, the behavior seems inconsistent. Sometimes the layout will switch, sometimes it won't. I can't pinpoint what is the exact source of the issue.

EDIT2: I think some applications do it, some don't. Ex: VLC does it, gedit doesn't.

Is there a way to disable compiz effects for just one window type or application?

I use the alt + mouse click shortcut to move windows and I like it, but when I use inkscape I cannot use any options of the application that use alt because compiz immediately grabs the alt and puts me in window movement mode. I think this is a bad design, applications should be able to override this behavior if they need to....

Anyways is there a way to do it?

Thanks.

Is there a way to disable the middle mouse button paste behavior that is here by default on gnome?

I have a sensitive mouse wheel and whenever I scroll texts, sometimes it pastes stuff randomly into the text. I lose quite a lot of credibility when I send a file to someone else that has random text snippets pasted all over it.

I have seen a solution that goes by mapping the mouse's middle button to a non-existant mouse button, but that implies getting rid of the middle mouse button altogether (i.e. no tab-closing, opening links into a new tab automatically, etc.). I'd like to keep my middle mouse button active, just disable the pasting behavior.

This also happens when I scroll text with my touchpad (accidentally hit two-fingers without moving, bam.)

So the problem will not be fixed just by changing for a new mouse (in fact I believe it happens more often with my touchpad than with my mouse).

I am tired of the envelope in the indicator applet (also known as the messages menu) because I don't use it so I would like to get rid of it but I don't have root access so I can't remove it by uninstalling the indicator-messages package. Is there another way to disable this applet?

Doesn't the indicator applet offer a way to select which indicator is displayed or not?

I run a more recent kernel (2.6.34) than the ones supplied with the Update Manager. I am tired of updates asking me to reboot every week or so and screwing my grub.cfg (this probably deserves it's own question).

How can I disable those updates painlessly?

Thanks.