## page was renamed from LaptopTestingTeam/AcerExtensa4420
  Contact: Nikolaus Vonessen (mailto:nikolaus@souza-vonessen.org)

  Make: ACER

  Brand: ACER

  Model: Acer Extensa 4420-5237

  Website: http://us.acer.com

== Current Issues ==
## List any issues you have with the current development release here

Bug reports should be filed regarding the hybernation/suspension problem.

It might be possible in the nearer future to get the modem to work.  See comments below.


||<-3 tablewidth="75%"> '''Screen & Monitors''' ||
||<|2> '''Device''' || '''Works?''' ||<|2> '''Bug #''' ||
|| Hardy 8.04 LTS ||
|| Screen || Good || ||
|| Correct resolution? || YES || ||
|| Correct refresh rate? || Untested || ||
|| 3D Acceleration || YES ("direct rendering") || ||
|| External monitor works? || YES || ||
|| External monitor - mirrors || YES || ||
|| External monitor - extend desktop || Untested || ||
||<-3> '''Power Management''' ||
|| Battery detected? || YES || ||
|| Hibernates? || NO (freezes) || ||
|| Suspend || NO (freezes) || ||
|| Dim monitor on battery || Untested || ||
|| Blank monitor on inactivity || Untested || ||
|| Lid Close || Untested || ||
|| Cpu frequency scaling || YES || ||
||<-3> '''Sound''' ||
|| Sound works? || YES || ||
|| Correct volume? || YES || ||
|| Hardware volume switch || YES || ||
|| Headphone jack || Untested || ||
|| Mic jack || Untested || ||
||<-3> '''Networking''' ||
|| Wired NIC || YES (Ethernet) || ||
|| Wireless NIC || YES, ([[http://ubuntuforums.org/showthread.php?t=769990|requires this to be done]]) || ||
|| PCMCIA NIC || Untested || ||
|| Firewire || Untested ||  ||
|| Bluetooth || Untested || ||
|| Modem || NO, but see comments || ||
|| Infrared || Untested, but see comments || ||
||<-3> '''Touchpad & Mice''' ||
|| Touchpad || YES || ||
|| Touchpad - Doubletap = double click || YES || ||
|| Touchpad - Scroll down side || YES || ||
|| External mouse - USB || YES || ||
|| External mouse - Serial || Untested || ||
||<-3> '''Docking Station/Port Replicator''' ||
|| AC through replicator || Untested || ||
|| USB || Untested || ||
|| Serial || Untested || ||
|| Parallel || Untested || ||
|| External Monitor - VGA || Untested || ||
|| External Monitor - DVI || Untested || ||
|| Modem || Untested || ||
|| NIC || Untested || ||
|| PS/2 || Untested || ||
||<-3> '''Additional Hardware''' ||
|| Fingerprint reader || Untested || ||
|| CD/DVD drive || YES (DVD and CD's work only tested with CD Burning though)|| ||
|| PCMCIA cards || YES, see comments || ||
|| Parallel Ports || Untested || ||
|| Card reader(s) || YES (tested with SD cards)|| ||


## Add or remove keys as needed for your laptop. Fill out action
||<-5 tablewidth="75%"> '''Function and other keys''' ||
||<|2> '''Fn key''' ||<|2> '''Operation''' ||<|2> '''Keycode''' ||<-1> '''Works?''' ||<|2> Bug # ||
|| Hardy 8.04 LTS ||
|| + F1    ||Opens Ubuntu Help Center || || YES || ||
|| + F2    || || || Untested || ||
|| + F3    || || || Untested || ||
|| + F4    ||Sleep || || NO (freezes while attempting to suspend) || ||
|| + F5    ||Display toggle (to external monitor) || || NO || ||
|| + F6    ||Screen blank || || YES || ||
|| + F7    ||Turn touchpad on/off || || YES || ||
|| + F8    ||Mute || || YES || ||
|| + arrow up   ||Volume up   || || YES ||  ||
|| + arrow down ||Volume down || || YES ||  ||
|| + arrow left ||Brightness up   || || NO (Workaround: Add the "Brightness Applet" to the top panel)||  ||
|| + arrow right||Brightness down || || NO ||  ||

=== Notes ===

'''Linux Kernel:'''  2.6.24-19-generic

'''Installation:''' The LiveCD does work for Me I used the Live CD Burnt to a DVD though using NTI Recorder that came with Vista on the computer  (also a CD works just fine)

'''Modem:''' The internal modem is of type "11c11040", and is currently
only supported under '''one''' special linux kernel (2.6.21.0-22) found
at http://linmodems.technion.ac.il/packages/ltmodem/11c11040/.  This
kernel does not work on the Acer Extensa 4420.  For details, consult
http://linmodems.technion.ac.il/packages/ltmodem/11c11040/11c11040.txt.  There has been a lot of activity regarding this type of modem on the linmodems discussion list during June 2008, so maybe a solution will be found.

'''PC Card Modem:''' I succeeded to make a Zoom V.92 PC Card modem (Model
3075, the one with an "L" in the serial number) work, after resolving
both an IRQ conflict (more below) and a modem initialization error
(caused by the modem command ATZ issued by wvdial).  Details are in my
message of June 20 2008 to the linmodems discussion list
http://linmodems.org/cgi-bin/ezmlm-cgi?1:mss:30607:200806:nphomakhiknjlaigopja
(Subject: "PC Card Modem: resolved interrupt conflict and modem
initialization problem").

'''IRQ Conflict:''' Both the PC Card modem and "nsc_ircc"
used irq 3.  It seems nsc_ircc is used by module irda, which must be
the driver for the infrared port.  I got rid of this irq conflict by
"black-listing" both irda and nsc_ircc, see my message to the
linmodems discussion list.


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CategoryLaptop