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Dang Khoa's questions

Martin Hope
Dang Khoa
Asked: 2012-02-08 20:37:45 +0800 CST
  • 3

I am running Ubuntu 11.10 x64. I have tint2 installed in an attempt to get a GNOME2-like bottom-panel.

Suppose I have windows A, B, and C open on Desktop 1, and windows D and E on Desktop 2. Right now, panel buttons for all 5 windows are on the tint2 panels when I am on any desktop.

Is there a way to get tint2 to act like GNOME2 in this regard? (I.e., bottom panel should only show windows A,B,C on Desktop 1; D,E on Desktop2; no windows on Desktop 3 or Desktop 4).

11.10 virtualdesktop
Martin Hope
Dang Khoa
Asked: 2011-09-21 22:18:26 +0800 CST
  • 3

I am trying to use /etc/network/if-up.d/ and /etc/network/if-down.d to send an SMS from my computer to my phone via Gmail whenever my computer enters or exits a wireless network. The main script is written in Perl, and the scripts in said folders are essentially wrappers around it. Here is the Perl script, ~user/bin/laptopSMS.pl:

#!/usr/bin/perl

use strict;
use warnings;

use Email::Send;
use Email::Send::Gmail;
use Email::Simple::Creator;

my $addy = q{[email protected]};
my $pass  = q{myPass};
my $sms   = q{[email protected]};

my $email = Email::Simple->create(
   header => [
          From    => $addy,
              To      => $sms,
          Subject => "$ARGV[0]",
  ],
  body => "$ARGV[1] / $ARGV[2]",
);

my $sender = Email::Send->new(
    {     mailer      => 'Gmail',
          mailer_args => [
              username => $addy,
              password => $pass,
          ]
    }
 );
eval { $sender->send($email) };
die "Error sending email: $@" if $@;

The following script is /etc/network/if-up.d/99postconnect_laptopSMS:

#!/bin/bash

set -e

if [ "$IFACE" == "wlan0" ]; then
    ipaddr=`ip addr | grep inet[^6] | grep -v 127.0.0.1 | awk {'print $2'} | sed 's!/[0-9]*!!g'`
    ssid=`iwgetid -r`
    ~user/bin/laptopSMS.pl "connected" "$ssid" "$ipaddr"
fi

This works fine, and I get a text message whenever my phone enters a network; the corresponding if-down.d script to send a "disconnect" signal, however, does not:

#!/bin/bash

set -e

if [ "$IFACE" == "wlan0" ]; then
    ~user/bin/laptopSMS.pl "disconnect" "disconnect" "disconnect"
fi

This is not executing; I tried to put the following snippet into the script to see if anything is actually running:

ifdowntest=/home/user/ifdown_test.txt
date >> $ifdowntest
whoami >> $ifdowntest
ifconfig >> $ifdowntest
sleep 5

Leaving this in the script by itself executes just fine, but appending it to the wrapper to the Perl script does not. (No file is generated.)

The output of ifconfig >> $ifdowntest shows that wlan0 does not have an IP - it's been taken down. Can I get this script to execute pre-down (I thought that's what the if-down.d folder did) or somehow edit something to make this work? Note that it takes about 3 seconds for the Perl script to fire when running it manually.

FWIW: I'm taking down the network manually by clicking the NetworkManager applet and clicking "Disconnect". I could potentially just kill my router to test that too, but I don't know if there's a difference between manually disconnecting and the AP no longer existing.

11.04
Martin Hope
Dang Khoa
Asked: 2011-08-31 10:38:57 +0800 CST
  • 5

Flash 10.2 brought the ability to full-screen and not exit out of it when using another screen (see this article). At least it did for Windows.

I've never gotten dual-screen Flash to work like this for me.. ever. Clicking on my other monitor while a video is full-screened still exits out of full-screen mode. Am I doing something wrong here? I've not seen any other posts on this issue, both on Ask Ubuntu and in the Ubuntu forums..

I typically run Chrome; current setup is Ubuntu 11.04 x64. I use Flash-Aid for Firefox to keep my Flash up to date.

Any help to get this functionality to work would be much appreciated.

multiple-monitors
Martin Hope
Dang Khoa
Asked: 2011-08-16 11:28:58 +0800 CST
  • 6

I'm using a Thinkpad W510 and constantly change locations. I'm using disper and auto-disper to change screen profiles (undocked; laptop screen + external screen; two external screens).

I wanted to run auto-disper --change after waking up, so I put the following script in /etc/pm/sleep.d:

#!/bin/bash

case "$1" in
    thaw | resume )
        auto-disper --change &> /home/myHome/autodisper_on_wake.txt
        ;;
esac

Upon wake, I get the following in autodisper_on_wake.txt, indicating that the script did fire:

Assuming disper defaults...
'NoneType' object has no attribute 'endswith'
Unable to fingerprint display configuration
home
school
undocked

But no change happened - despite unplugging my monitor before waking my machine (going from profile 'school' to profile 'undocked'), I'm still in profile 'school'.

Any ideas how to proceed? (FWIW, I changed autorandr to have PROFILE and CONFIG point to my absolute home directory, rather than ~ [I thought maybe wake scripts execute as root, so it would look in ~root for profile data]).

bash
Martin Hope
Dang Khoa
Asked: 2011-07-12 21:01:44 +0800 CST
  • 3

When I try to play Flash videos in full screen, sometimes - but not all the time, which makes this bug so aggravating! - the video gets very, VERY choppy, and UI controls do not really respond at all. Sound works fine. Disabling Compiz does nothing to alleviate the problem (switching to Ubuntu Classic (No Effects) - I even created a new user just to test this out to make sure it wasn't a local configuration problem).

This problem exists both in the latest beta build of Chrome and the most up-to-date Firefox with latest Flash. No problems when I watch a video in full-screen, it seems to be just Flash.. and videos tend to play just fine when not in full-screen mode.

I'm on a Thinkpad W510 with an nVidia Quadro FX 880M graphics card.

If anyone could be help this would be much appreciated.

11.04