AcerExtensa4420

Current Issues

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.

Screen & Monitors

Device

Works?

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

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

Sound

Sound works?

YES

Correct volume?

YES

Hardware volume switch

YES

Headphone jack

Untested

Mic jack

Untested

Networking

Wired NIC

YES (Ethernet)

Wireless NIC

YES, (requires this to be done)

PCMCIA NIC

Untested

Firewire

Untested

Bluetooth

Untested

Modem

NO, but see comments

Infrared

Untested, but see comments

Touchpad & Mice

Touchpad

YES

Touchpad - Doubletap = double click

YES

Touchpad - Scroll down side

YES

External mouse - USB

YES

External mouse - Serial

Untested

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

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)

Function and other keys

Fn key

Operation

Keycode

Works?

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.

CategoryLaptop

LaptopTestingTeam/Old/AcerExtensa4420 (last edited 2010-03-01 21:17:49 by 94)