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How can I completely disable internal Mic and Webcam

I want to disable the internal Microphone on my laptop and the internal Webcam completely that they're no longer selectable, and no longer available?

I will only use my external Webcam, and my external (USB) headset.

The internal audio should still be available for playback.

Brightness keys adjust brightness too many times

Every time I hit a brightness key on my laptop's keyboard, it adjusts the brightness by three steps instead of one. How can I fix it so that it only adjusts one step at a time?

I am using an Acer Aspire D250 with the newest firmware. It was working better when I was using Ubuntu 10.10 with older firmware (although the scale was off).

Any tips on debugging this would be appreciated.

Edit: My graphics:

00:02.0 VGA compatible controller: Intel Corporation Mobile 945GME Express Integrated Graphics Controller (rev 03)

/sys/class/backlight$ ls
acpi_video0  intel_backlight

How to get microphone to work on acer aspire one 722

I have an acer aspire 722, I recently went to use gmail/talk as well as empathy and realized that the microphone does not work. I checked the sound settings, adjusted microphone level, did a mic test but the level indicator showed no bars.

Automatic Mute Speakers When Headphones are Unplugged

I listen to music almost any time I am on my computer. I often accidentally unplug my headphones. This has resulted in disturbing others around me. Does any one know of a way to mute the speakers (and potentiality pause VLC) when headphones are unplugged?

I would like to do this on my Laptop. It is an Acer Aspire One D150. The speakers are built-in to the computer. My headphones are standard 1/8 in which connect through the headphone jack.

Hibernation causes crashing on an Acer Aspire [closed]

Hibernation worked perfectly fine in 11.04. Ever since I upgraded to 11.10, my laptop (Acer Aspire) keeps crashing when it's hibernating. I have no clue why. Any ideas?

At first it seemed to only happen between 6a-noon (US Eastern time), but this morning it happened earlier.

(PS. I checked /var/log/syslog but I'm not sure what I'm looking for. I thought something might jump out at me as an obvious error in hibernating or coming out of it, but nothing seemed unusual. I'm a bit of a newbie in this area so I might be missing something in lines upon lines upon lines.)

How to Disable touchpad while typing on Aspire One

I want to disable the touchpad while I type on my Aspire one netbook. If I issue the command syndaemon the synaptics driver is not detected:

Unable to find a synaptics device

So, I added the following to my xorg.conf file:

Section "InputDevice"
Identifier "Mouse0"
Driver "synaptics"
Option "Protocol" "auto"
Option "Device" "/dev/input/mouse0"
Option "ZAxisMapping" "4 5 6 7"
Option "CorePointer"
Option "HorizEdgeScroll" "1"
EndSection

It is still unable to find a synaptics device, however my touchpad works fine.

How do I fix a "Wireless is disabled by hardware switch" error?

I just updated to Ubuntu 12.04 from 11.10 but soon after updating I was disappointed to see that

Wireless is disabled by hardware switch.

I can not click the button 'Enable wireless' which is greyed out. Without wireless my computer is useless as I have to connect by wire which is not practical. I have a Acer TravelMate 4500

Can't adjust brightness on my laptop

I'm having difficulty in adjusting brightness on my Acer Aspire 4740:

• Screen 14.1-inch glossy LED-backlit, 1366x768 res
• CPU Intel Core i5-430M 2.26-GHz
• RAM 1GB DDR3
• HDD 320GB
• Graphics Intel GMA HD

Im using Ubuntu 10.10 . I do not have this problem in Ubuntu 10.04 , but this problem occur in Ubuntu 10.10 . I can't decrease or increase my brightness even in Compiz.

Alsamixer: howto disable auto-mute mode

I've tried do undo this but not able to get it disabled. My sound settings need to be redone every boot up as well, but asking that question as well would get neg. feedback.

How to get microphone to work on acer aspire one 722

Error "fixing recursive fault but reboot is needed"

I am trying to install ubuntu for the first time. (long time windows user, first time linux!)
Version = 11.04 Hardware = Acer Travelmate 4050 I can boot from USB or CD and it loads fine I have installed and reinstalled several times from both USB and CD and it completes correctly However, when I boot from the HDD I get the above error I don't see any errors like "kernel panic" mentioned elsewhere It happens whether I boot with AC adapter in or out and also with adapter in but battery out Not sure how to get further info to help with diagnosis Suggestions?

No suggestions at all ? I tried enabling boot logging but still have a blank log file ...

Surely a machine that boots perfectly off the DVD and USB but wont boot off the HHD after a supposedly successful install is a good challenge for someone ... please ...

How do you adjust screen brightness on Acer laptop? [closed]

I have an Acer Aspire one 5742 laptop. I installed Linux Ubuntu 12.10 on it. I have one problem with it. no matter how I press the Fn+↑ or Fn+↓ keys I cannot adjust the Screen Brightness. It is at its maximum brightness and this drains the laptop battery. I did some googling and found out that you needed to change some settings in the grub file but I don't know exactly what to do. Can anyone help me?

Computer running very slowly under 13.04

After having some bouts with windows 8 I decided to throw it out and run Ubuntu as the main operating system.

Currently I am having some problems with performance:

Even when running the simplest tasks, such as logging in to the UI or console, or running apt-get upgrade, it takes a very long time, and the CPU fan is spinning at full speed. I run top, and the top application itself takes about 13%. As a comparison, if I run top on a 2007 Macmini also running Ubuntu 13.04, top uses about 0,5%. Cold-boot to login-prompt GUI takes minutes, compared to about 15 seconds on Windows 7 and less than a minute on the Macmini. Starting a terminal window by ctrl-alt-t takes perhaps 20 seconds, and even editing a command line has significant delays.

Question: How do I solve this performance problem?

I have installed Ubuntu 13.04 (64 bit) on an Acer Aspire 8951G on the 120 GB SSD in ext4 format, with a 32 GB swap on an HDD. Then, coming from a Windows environment, I started by doing an update: sudo apt-get update && apt-get upgrade. It also was very slow. I have 32 GB RAM installed (which works in the BIOS, Windows in Ubuntu). I have the most current BIOS (1.13) I could find on the Acer support site.

If I start partedmagic from the current ultimate boot cd, there is the same performance problem. If I try the partedmagic on another Acer I have (Acer Aspire V3-571G), there is the same performance problem. In Windows 7 that I had installed yesterday as the main operating system, there were no performance problems.

I tried hardinfo with results hardinfo. /var/log/syslog contains /var/log/syslog

More info 2013-05-30:

I tried Ubuntu Live USB-Stick 13.04 x86_64 on my:

Acer V3-571G (the one that was slow earlier with partedmagic) with the following hardinfo. Ubuntu was very responsive and I was happy with the performance on that computer. Here is the /var/log/syslog.

Acer Aspire 8951G (my problem-computer) with the resulting /var/log/syslog contents. I selected to try ubuntu from the stick. The system did not even get to the login screen before I gave up.

An interesting part from the end of the problem-syslog: timeout: killing 'keymap input/event, ------ rcu_sched self-detected stall on CPU, ------ BUG: soft lockup - CPU#3 stuck for 22s!

A memory test using Memtest86+ for several hours (1 iteration) passed ok.

I tried installing bumblebee and its suggested dependencies with no noticeable change in performance.

sudo powertop --time=60 --html produces the report PowerTop.html

Edit 2013-06-06:

grep Graphics /var/log/Xorg.0.log and cat /var/log/Xorg.0.log results are at paste.ubuntu.com

i cat /proc/cpuinfo | grep "cpu MHz" and cat /proc/cpuinfo results are also at paste.ubuntu.com

How to adjust screen brightness in Ubuntu 14.04 (Trusty Tahr)?

I am unable to alter the screen brightness in my laptop; it is always 100%.

The laptop is Acer Aspire 5740, and graphics/chipset/VGA all are by Intel.

The laptop has a keyboard shortcut, Fn+Right and Fn+Left which shows the brightness being increased or decreased (the brightness icon blinks on the top!), but in reality no change.

I have other options for the same function key (Fn), like Fn+Up & Fn+Down for volume control, which are working perfectly!

The brightness control in Ubuntu System Settings is also not responding!

I did try a few options available here!

(1)

I did try to edit the "GRUB" like many have suggested. But I'm unable to locate the "LINE" to be edited, i.e. GRUB_CMDLINE_LINUX="". I get the following as the error message or so!

(gedit:8235): Gtk-WARNING **: Calling Inhibit failed: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files

(2)

I tried to add "xbacklight". I got the following:

Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed:
  xbacklight
0 upgraded, 1 newly installed, 0 to remove and 190 not upgraded.
Need to get 8,488 B of archives.
After this operation, 61.4 kB of additional disk space will be used.
Get:1 ftp://ftp.iitb.ac.in/distributions/ubuntu/archives/ trusty/universe xbacklight amd64 1.1.2-1 [8,488 B]
Fetched 8,488 B in 0s (26.5 kB/s)
Selecting previously unselected package xbacklight.
(Reading database ... 165039 files and directories currently installed.)
Preparing to unpack .../xbacklight_1.1.2-1_amd64.deb ...
Unpacking xbacklight (1.1.2-1) ...
Processing triggers for man-db (2.6.7.1-1) ...
Setting up xbacklight (1.1.2-1) ...

The YouTube video Xbacklight - Dim Your Screen - Ubuntu 10.10 shows xbacklight as a part of keyboard shortcut, but I am unable to locate one in Ubuntu 14.04, so I tried to create a custom! With the xbacklight as the command! And Ctrl+Up & Ctrl+Down. The Ubuntu seems to recognize it, but no response!

How can I proceed? Or I'm I making any mistake?

At present my update/download server is the IIT-Bombay server for India. Which is the only responsive server for India.

Screen Brightness not adjustable for Acer Aspire S3

First of all, thank you very much for providing this useful forum. Too bad for me, there is no support for the Acer Aspire S3 yet (just came out in October)

Short Description of the Problem: I cannot adjust the screen brightness. Neither Compiz nor the FN Key combination work. Also the fan keeps running on full power. As you can guess, both of these drain my battery.

The Setup: Acer Aspire S3, Intel i5 newest Generation, Intel HD3000 Grafic Accelerator (no driver maybe?)

Thanks in advance, Kakadu90

How to control Brightness

I didn't install anything myself, but only Ubuntu 12.04 LTS on an Acer 4741g.

I use Fn+left/right to change the brightness, but failed.

How can I control the brightness levels?