komputes's questions

How do I know which graphics card is being used in a hybrid system?

From lspci:

00:02.0 VGA compatible controller [0300]: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09)
    Subsystem: Dell Device [1028:0578]
    Kernel driver in use: i915
    Kernel modules: i915
--
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GK107 [GeForce GT 650M] [10de:0fd1] (rev a1)
    Subsystem: Dell Device [1028:0578]
    Kernel driver in use: nouveau
    Kernel modules: nouveau, nvidiafb

From Xorg.0.log:

[    46.292] (II) intel(0): Output VGA1 has no monitor section
[    46.340] (II) intel(0): EDID for output VGA1
[    46.388] (II) intel(0): Output VGA1 disconnected
[    46.541] (II) NOUVEAU(G0): Output VGA-2 has no monitor section
[    46.563] (II) NOUVEAU(G0): EDID for output VGA-2
[    46.563] (II) NOUVEAU(G0): Output VGA-2 disconnected
[    46.563] (II) NOUVEAU(G0): Output VGA-2 disconnected

Full Xorg.0.log: http://paste.ubuntu.com/1454118/

xte is part of the xautomation package. After hours of man page reading and looking for documentation or working examples, I still cannot get xte to emulate a Fn-F7 keypress.

xte 'keydown Meta_L' 'key F7' 'keyup Meta_L'

I've tried Meta_L, Meta_R, Multi_key, key F7, keydown F7 then keyup F7. No combination seems to work.

Any idea how I can emulate a combination key press with a Fn key from a command/script?

Looking for a simple way to do this from the command line.

List samba shares and the users who can access each of them.

List samba shares and the users currently connected to them.

List samba shares and every connection (log, including user) that has been established to each of them.

Any ideas? Anything you use that's currently available that will give me the bits I need to put this together?

Cheers!

Is there some way of configuring "No Effects" in the backend of GNOME Shell to get less memory/CPU overhead from graphical applications?

I don't dare to turn on Metacity compositing due to this:

metacity fails if compositing is enabled.

(Source)

So is there anything else I can do to speed up the user interface and disable any type of effects?

I'm using gnome-shell in Oneiric and would like to know if there is a way to change the text "Activities" (in the top left corner) to a picture if the Ubuntu logo. I have already succeeded at replacing it with "Ubuntu" by editing one line in this file:

/usr/share/gnome-shell/js/ui/panel.js:

From:

this._label = new St.Label({ text: _("Activities") });

To:

this._label = new St.Label({ text: _("Ubuntu") });

Anyone with js expertise here? Could I possibly change this to something like

this._label = new St.Label({ image: _(/use/share/icons/ubuntu.ico) });

When reporting a bug from a crash, the bug is made private and a file called CoreDump.gz. The Bug Triage documentation says the following:

If the crash still has a CoreDump.gz attachment, then it was not possible to automatically get a fully symbolic stack trace and check for duplicates.

Stacktrace.txt seems readable by a human. How can I understand the meaning of a stack trace. CoreDump withing CoreDump.gz does not seem human readable. What is a "fully symbolic stack trace"? What is the difference between a "fully symbolic stack trace" How do I view the contents of a CoreDump file? (tried 'cat', but it's not clean)

After installing openssh-server, the server start every time I boot. If I want it to be manual what do I need to do?

In version 0.6.7+ of upstart I would add a "manual" stanza to the job file.

10.04 has upstart 0.6.5-8. What is the preferred way to disable ssh from starting automatically in this case?

I would like to know how I can disable the feature in nautilus which truncates long filenames in icon view? I beleive there may be a gconf key which controls this but I'm not sure which specific key, if it exists, or has to be added manually.

I would like to disable Compiz in Natty (Ubuntu Classic). I have tried to access this through System > Preferences > Appearance but the "Visual Effects" tab is no longer there.

On previous releases the following gconf key makes the switch:

/desktop/gnome/session/required_components/windowmanager

Value to have visual effects off: metacity

Value to have visual effects on: compiz

On Natty this key is set to gnome-wm which seems to have a lot of added eyecandy (effects/shading) as opposed to metacity in the previous release, and which I would like to turn off.

I'm on a triple boot MacBook (OSX, Ubuntu, Windows). Windows started misbehaving and needed to be re-installed (as it often does). After reinstalling windows, the MBR now points to Windows directly and not GRUB.

GRUB recovery which works on most MRB Partition Table, did not on this GPT Partition table:

$ sudo grub-install --root-directory /media/ubuntu /dev/sda

Ubiquity knows how to do this correctly. Which command can I run to recover GRUB/MBR on an Intel Mac?

SOLUTION: This was not simple but I found out how to do it. Thanks to Colin Watson and to the Debian IntelMac[1] Documentation for each giving me parts of the solution.

Here is what I did:

1) Boot From LiveCD

2) Go to places and mount partition with Ubuntu

3) Press CTRL-L in nautilus or use the mount command to find out where that partition is mounted (example: /media/123)

4) Open a Terminal (Application > Accessories > Terminal)

5) Run the following commands:

$ for x in dev proc sys; do sudo mount --bind /$x /media/123/$x; done

$ sudo chroot /media/123

# dhclient

# apt-get install grub-pc os-prober gptsync

# gptsync /dev/sda # Say YES

# grub-install --force /dev/sda #Tried sda4 (the ubuntu partition) but resulted w/blink _ at boot

# update-grub

# exit

$ sudo reboot

[1] http://wiki.debian.org/IntelMac/BootLoader#Upgrading

After installing xubuntu-desktop on Ubuntu 10.10, The GDM window icon changed to a blue mouse, How to I return GDM to the default Ubuntu theme/icon.

I have tried the following which effectively changes the theme but doesn't modify the top icon.

http://www.n00bsonubuntu.net/content/how-to-change-login-screen-ubuntu-1010-maverick-meerkat