I/O error while opening /de/ttyS0 on Dell D630 

I have recently tried to breathe life to the serial port of my DELL D630 notebook under Ubuntu Natty, but the opening always failed with I/O error.

I have tried the relevant acpi=off, pnpacpi=off kernel parameters, updated the BIOS, but these thigns did not lead to succes. As final trying I have switched the port from COM1 to COM2 int the BIOS and finally it became available as /dev/ttyS1


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Asus X51R & Ubuntu & Skype & no microphone 

The Skype microphone did not worked for me since the 9.04.
I have added the following to the /etc/modprobe.d/alsa-base.conf:



options snd-hda-intel model=3stack-660
options snd-hda-intel position_fix=1




And now it works fine.

Since then my machine has exactly similar internal (expect the pcmcia slot and the card reader) this solution should works for the Packard-Bell Easynote-SB89
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Asus X51R Ubuntu 10.04 microphone 

I had some problem with my laptop's microphone input with the Ubunutu 10.04.

I have inserted the following line to the end of the /etc/modprobe.d/alsa-base.conf


options snd-hda-intel model=3stack-660
options snd-hda-intel probe_mask=1


And now I have the Mic, and the Front Mic and the line channel in the alsamixer. The microphone connector, is the MIC in the alsamixer, and the Mic2 in the system's sound preferences.

BTW, I have disassembled it, and found a pinhead connector near the soundcard IC (ALC660), so I think it is possible to add an internal microphone.

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Ubuntu /usr/lib/cups/filter/pdftopdf failed 

Today I wanted to print some documents. Click print, wait nothing happends. I have checked the CUPS command panel, and it said, that the
/usr/lib/cups/filter/pdftopdf failed. Happiness. I have tried to run it, and

mm@lapos:~$ /usr/lib/cups/filter/pdftopdf
/usr/lib/cups/filter/pdftopdf: symbol lookup error: /usr/lib/cups/filter/pdftopdf: undefined symbol: _ZN13GfxColorSpace5parseEP6Object


This happends on my notebook running Ubuntu 9.10 Karmic Koala x86_64.

I remember that there were a CUPS update few days ago. I have forced back the old version of cups, but it did not helped. So I have made a bit workaround with

mm@lapos:~$ sudo mv /usr/lib/cups/filter/pdftopdf /usr/lib/cups/filter/pdftopdf2
mm@lapos:~$ sudo /etc/init.d/cups restart

AAnd happiness.
Now I feel that once I will be angry to myself about this action, but currently I can print, and this is what is matter.

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