Author Topic: Card reader and microphone not working under Ubuntu 11.04  (Read 11005 times)

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Offline arciedy

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Card reader and microphone not working under Ubuntu 11.04
« on: May 27, 2011, 04:34:54 pm »
I installed Ubuntu 11.04 in my Acer Aspire One (Model ZG5).  Ubuntu is a fantastic improvement over Linpus, and locating, installing, upgrading, and removing programs have never been easier.

The only problems I encountered are:
1.  The storage expansion slot (on the left side of the AA1) works off the box, however the card  reader (on the right side) doesn't.
2.  The built-in web cam works fine, but the built-in microphone no longer works.  I plugged an external microphone into the mic input jack but this wouldn't work either.

Any suggestions?  Thank you.

Offline Mark Greaves (PCNetSpec)

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Re: Card reader and microphone not working under Ubuntu 11.04
« Reply #1 on: May 27, 2011, 05:05:38 pm »
OK, for the microphone, try this...

Open a terminal and enter:
Code: [Select]
sudo apt-get install pavucontrol
then
Code: [Select]
pavucontrol

When the pavucontrol window opes, click the input devices (tab)... Click the little padlock icon to unlock the channels... Now set the left front channel to about 75%, and the front right channel to 0% (silence).

Now see if the Mic works.

Meanwhile, I'll see what I can come up with for the card reader.



[EDIT]

Can you put an SD card in the NON working slot, then open a terminal and enter:
Code: [Select]
sudo echo 1 > /sys/bus/pci/rescan

Now check if the card can be accessed... this is NOT a *fix* as such, I just want to know if it works... then we'll try a *fix*.
« Last Edit: May 27, 2011, 06:02:24 pm by Mark Greaves (PCNetSpec) »
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Offline arciedy

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Re: Card reader and microphone not working under Ubuntu 11.04
« Reply #2 on: May 30, 2011, 07:47:11 pm »
The mic is working fine now, thank you!

As your wanting to know if the following command would enable access to the SD card:

sudo echo 1 > /sys/bus/pci/rescan

the resulting message was:

bash: /sys/bus/pci/rescan: Permission denied

I accidentally (the only way to describe it as I do not know Linux commands!) entered

sudo echo 1 > /sys/bus/pci

the resulting message was:

bash: sudo echo 1 > /sys/bus/pci: Is a directory


Offline Mark Greaves (PCNetSpec)

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Re: Card reader and microphone not working under Ubuntu 11.04
« Reply #3 on: May 30, 2011, 08:07:45 pm »
OK, let's try this...

Open a terminal and enter these 2 commands:
Code: [Select]
sudo cp /etc/default/grub /etc/default/grub.bak
(hit enter, and your password when asked)

then run:
Code: [Select]
sudo gedit /etc/default/grub
(hit enter, and your password if asked)

When gedit opens, look for the line:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

and change it to:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash pciehp.pciehp_force=1"

SAVE the file, and exit gedit.

Back in the terminal, run:
Code: [Select]
sudo update-grub
(hit enter, and your password if asked)

When that command finishes, and leaves you back at a prompt, enter:
Code: [Select]
sudo sh -c 'echo acpiphp >> /etc/modules'
(hit enter, and your password if asked)

Now reboot, and check if the card reader works.
« Last Edit: June 02, 2011, 12:51:03 am by Mark Greaves (PCNetSpec) »
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Offline arciedy

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Re: Card reader and microphone not working under Ubuntu 11.04
« Reply #4 on: May 31, 2011, 02:53:53 pm »

I followed your instructions, and as soon as I rebooted and the desktop came up, the icon for the 4GB SD Card inserted in the card reader immediately appeared.  Amazing!  I cannot thank you enough.

Offline The Liquidator

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Re: Card reader and microphone not working under Ubuntu 11.04
« Reply #5 on: June 27, 2011, 12:59:40 pm »
Just spotted this thread

Installed ubuntu netbook remix on my wifes AAO110L ever she we got it 2 years ago - have gone from 9.04- 11.04.

I knew about the Grub line but upon installing 11.04 that did not work as a fix ..... until I stumbled upon this thread and noted the command you posted. Bingo! Great success! Many thanks

Offline Mark Greaves (PCNetSpec)

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Re: Card reader and microphone not working under Ubuntu 11.04
« Reply #6 on: June 27, 2011, 01:07:02 pm »
You're welcome, and thanks for the feedback :)
WARNING: You are logged into reality as 'root'
logging in as 'insane' is the only safe option.
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