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Fedora or SuSE for centrino laptop? - the verdict
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Thomas Tuttle
*nix forums beginner


Joined: 23 Feb 2005
Posts: 3

PostPosted: Tue Feb 22, 2005 2:53 am    Post subject: Re: Intel 2200BG Wireless Driver Reply with quote

Bill Unruh wrote:
Quote:
"Thomas V." <thomas@nospam.tld> writes:


Hey !


Which driver do you use for your Intel 2200BG Wireless card.
I heard about 2 or 3 drivers. (IPW2200, NDIS, and another one...)


ipw2200 is native driver. Ndiswrapper and linuxant driverloader are
programs which use the Windows drivers under Linux.



Is it possible to use it in Monitor mode ? (for wardriving softwares)


What is monitor mode?

There are 3 ways a wireless card can run. (Not counting ad-hoc, but
that's irrelevant.) The "normal" way is for it to talk to an access
point and pass only packets destined for it to the OS. "Promiscuous"
mode (often confused with monitor, but not the same thing) comes from
Ethernet and will pass all packets on the network to the OS. "Monitor",
or "rfmon" mode will pass all raw 802.11g packets to the OS, allowing it
to see traffic from any network, encrypted or not (obviously it can't
decrypt encrypted traffic, but it will pass it on nonetheless). The
reason for the distinction is that on 802.11, the traffic on one network
(promiscuous) is not the same as all traffic received (rfmon), while on
Ethernet you only receive traffic on one network, so they are the same
thing.

And, no, ipw2200 doesn't have rfmon. (Yet.)

--Thomas Tuttle
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Thomas Tuttle
*nix forums beginner


Joined: 23 Feb 2005
Posts: 3

PostPosted: Tue Feb 22, 2005 2:48 am    Post subject: Re: Good Linux Laptop? Reply with quote

Visvanath Ratnaweera wrote:
Quote:
Stephan Kupfer wrote:

Kalevi Nyman wrote:


Which laptop is a good choice for using Linux?



I like my IBM Thinkpad X40, its really good. All components work with my
gentoo installation.
As a student i get it for i good price.


The German magazine c't (issue 17/2004) contains a comparison
of the following laptops:

1)
Acer TM 8005MLI ++
Apple iBook G4 -
Asus W1000N o
Asus(Xtops.de) M2400N ++
Averatec 3200 o
BenQ Joybook 5100U o
Dell Inspiron 510m -
Fujitsu-Siemens Amilo A1630 o
Gericom Hummer 2860 XL -
HP nc6000 ++
IBM TP R51 +
IBM TP T42P +
JVC MP-XP731 ++
Toshiba Satellite A40-141 -

1) (Linux) Functionality
++ very good + o - -- very bad

I can agree with their "very good" rating of the Asus M2400N. I have
one myself, and it works great with Gentoo. The wireless cards finally
have drivers (ipw2200), and all the other hardware (except the winmodem)
works fine.

Quote:
(The above is just a single column from that long report.)

The latest Linux Journal (1/2005) has a test report of
HP Compaq nx5000. A quote from that:

1.4 GHz Intel Pentium M, 2 GB max.
Display XGA (1024x768) or XSGA+ (1400x1050)
Combo DVD/CD-RW
WLAN Atheros a/b/g
Winmodem (slamr module)

"With the nx5000, HP gets closer than anyone has yet to a
general-purpose business PC running Linux. If you want to
make your company's Linux desktop migration a treat of
working in cafés and enjoying media instead of a chore,
get one to evaluate. Dorm-room or small-apartment dwellers
can consider this as a good main computer and entertainment
system." Don Marti, Editor in Chief of Linux Journal

Use Centrino or Pentium M Notebooks, not the P4 crapp.

Agreed. Much cooler, and sometimes faster.

Quote:
If it has to [be] portable, definitely!

But not necessarily for somebody who is looking for a "desktop
replacement".

True. The Pentium-M is quite powerful though.

--Thomas Tuttle
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Dan Say
*nix forums beginner


Joined: 20 Feb 2005
Posts: 5

PostPosted: Sun Feb 20, 2005 7:43 pm    Post subject: Re: Battery operated, light weight Linux HW to be carried in a model airplane Reply with quote

<Dussrviok> wrote:

Quote:
I am searching for a Linux hardware (which will be used in a
model airplane) with the following specs;
* Small
* Battery operated (single power input 5v, or 9v or 12v)
* Light weight
* Supports min 4 RS232 ports
* Parallel printer port (for digital I/O) (or 8-16 digital
I/O) * Optional USB port
* 10/100 Ethernet port
* Capable booting either from a USB memory and/or a Compact
Flash disk

Any recommendation?
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JGH
*nix forums beginner


Joined: 15 Apr 2005
Posts: 7

PostPosted: Sun Feb 20, 2005 7:43 pm    Post subject: Re: PCMCIA radio? Reply with quote

Ian Stirling <root@mauve.demon.co.uk> wrote in
Quote:
I've seen USB.
PCMCIA USB adaptor + USB radio = job donw.

Well, I haven't checked ebay this week but last week some guy had 3 new
pcmcia TV tuner cards for sale. But I'm blind and I don't want TV. And I
don't want to pay $100.
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Alexander Clouter
*nix forums addict


Joined: 05 Apr 2005
Posts: 63

PostPosted: Sun Feb 20, 2005 7:43 pm    Post subject: Re: Secondary battery problems with 2.6.8 kernel Reply with quote

On 2005-01-31, larwe@larwe.com <larwe@larwe.com> wrote:
Quote:
So the 'present voltage' is still at 0mV but the laptop is certainly
up
and running!

Sounds like a BIOS bug to me. Do you have Windows installed on this
laptop? I'd be curious to see if Windows can report the battery state
accurately.

Not a BIOS bug but a ACPI DSDT bug (which is acquired from the BIOS, so kind

of right Smile You can learn more about this by going to
http://acpi.sourceforge.net/ (IIRC) or sending me the output from:

# cat /prox/acpi/dsdt > DSDT.aml

I will then rewrite the relevant section for you after you install the
'acpi initrd' patch. then things should start working. On my Thinkpad T40p
I had plenty of ACPI DSDT 'bugs'. I have managed to enable fan support,
found five additional sensors, enabled C4 power saving, enable support to
change the LCD brightness through ACPI and add 'linux' support flags to the
table. You can have a lot of fun with it and make you machine much more
power saving friendly, if you have the time.

Cheers

Alex
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Paul Rubin
*nix forums Guru


Joined: 28 Feb 2005
Posts: 1197

PostPosted: Sun Feb 20, 2005 7:43 pm    Post subject: Re: Fedora or SuSE for centrino laptop? Reply with quote

Martin Liddle <news09@tynecomp.co.uk> writes:
Quote:
That is the binary wrapper thingie, I think.

The project describes itself as "an open source 802.11b driver for the
ipw2100".

I see now, it downloads a binary firmware module into the card. Also,
it says the card itself has no hardware docs, so it's done by reverse
engineering. Using a pcmcia card is a nuisance, but if I want to use
an internal card, I think I'll try to find an Orinoco mini-PCI card
that's documented and doesn't need any binary downloads or reverse
engineered drivers.
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Bill Marcum
*nix forums Guru


Joined: 28 Mar 2005
Posts: 1264

PostPosted: Sun Feb 20, 2005 7:43 pm    Post subject: Re: Working with USB Flash Drives? Reply with quote

On Mon, 24 Jan 2005 00:42:04 -0500, ptkacz@cogeco.ca
<ptkacz@cogeco.ca> wrote:
Quote:
My laptop didn't come with a floppy drive, so I'm making use of a USB Flash
Drive. Upon inserting the flash drive into a USB port, Debian recognizes
it. I am then able to as root mount it by way of,

mount -t vfat /dev/sda1 /memstick

I am able to list, copy, move, delete, etc. the contents of the drive, but
how do make such privileges for a non-root user accessable?

I've even tried to chmod "/memstick", as well, have added the following
information to /etc/fstab,

/dev/sda1 /memstick vfat rw,noauto,user 0 0


I've even added the user the the group hal.

Add "umask=0" to the options.
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Alexander Clouter
*nix forums addict


Joined: 05 Apr 2005
Posts: 63

PostPosted: Sun Feb 20, 2005 7:43 pm    Post subject: Re: Experiences with ATI's drivers: 9600 Radeon Mobility Reply with quote

Morning Scott,

On 2005-01-31, scottrharris@gmail.com <scottrharris@gmail.com> wrote:
Quote:
Can anyone comments on the performance and quality of ATI's binary
drivers for the 9600 Radeon Mobility under Linux? Is GLSL or Cg
supported? Are the drivers comparable to the quality/speed/perfoaance
windows versions?

Well I'm on the Radeon 9000 Mobility FireGL mcwhatsit or something. I have a

IBM T40p which works a treat[1] with the open source DRI drivers under X.Org.

I get just over 2000fps whilst my CPU is clocked at 600Mhz (no ftp increase
when I knock up the CPU freq).

Quote:
I'm thinking about getting an IBM T42 with the Radeon 9600, and I'm
hoping I can install Linux, the ATI driver, and then enjoy a mostly out
of box experience with good OpenGL support. I do a lot of scientific
computing, so good OpenGL is essential for data visualization. I'm
trying to pick the laptop based on ease of installation and 3D graphics
performance in Linux.

To be frank should this not be done on a desktop machine? Also the

'visualisation' performance issues usually boils down to poor OpenGL writing
by the coder; as physicist/fluid mechanics guy != opengl coder usually.

The Thinkpad makes a good solid workstation, but no laptop really makes for
very good 3d acceleration when compared to desktop machines; its not what
they are really built to do although now folk think laptops are fashionable
items and want some fancy 3d card in them now :-/

Quote:
Can anyone that does a lot of OpenGL on a Linux laptop comment on this
choice? Maybe somebody with this exact setup? What about laptops with
Nvidia chips?

good luck finding a good *laptop* with that chipset. Usually they just turn

out to be useless Dell's or Toshiba's.

When it boils down to it both ATI and Nvidia make good cards, its just ATI
could not write drivers if it was a life or death situation. Sad Fortunately
the opensource DRI drivers are rather good, although do not expect to play
UT2004 :)

If you have something you want me to run on my lappy at this end, send me the
source-code and dataset and I'll see how it performs.

Cheers

Alex

[1] http://www.digriz.org.uk/t40p-linux/

Quote:
Thanks!
-Scott
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Bill Waddington
*nix forums Guru Wannabe


Joined: 07 Mar 2005
Posts: 178

PostPosted: Sun Feb 20, 2005 7:43 pm    Post subject: Re: Fedora or SuSE for centrino laptop? Reply with quote

On Thu, 17 Feb 2005 13:29:56 -0500, General Schvantzkoph
<schvantzkoph@yahoo.com> wrote:

Quote:
On Thu, 17 Feb 2005 09:51:14 -0800, Paul Rubin wrote:

Martin Liddle <news09@tynecomp.co.uk> writes:
Are you sure. What about <http://ipw2100.sourceforge.net/>?

That is the binary wrapper thingie, I think.

Looks like a real driver to me. The wifi wrapper is Ndiswrapper which
allows you to use a Windows driver.

The General is correct. The IPW driver is (mostly) open source - and
written primarily (so far) by Intel folks. Ndiswrapper is a Linux
wrapper for the XP driver.

Either one works fine in my somewhat limited experience with my
IBM R40 Centrino running FC2.

Bill
--
William D Waddington
william.waddington@beezmo.com
"Even bugs...are unexpected signposts on
the long road of creativity..." - Ken Burtch
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General Schvantzkoph
*nix forums Guru


Joined: 20 Feb 2005
Posts: 425

PostPosted: Sun Feb 20, 2005 7:43 pm    Post subject: Re: Fedora or SuSE for centrino laptop? Reply with quote

On Thu, 17 Feb 2005 09:51:14 -0800, Paul Rubin wrote:

Quote:
Martin Liddle <news09@tynecomp.co.uk> writes:
Are you sure. What about <http://ipw2100.sourceforge.net/>?

That is the binary wrapper thingie, I think.

Looks like a real driver to me. The wifi wrapper is Ndiswrapper which
allows you to use a Windows driver.
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Martin Liddle
*nix forums beginner


Joined: 18 Apr 2005
Posts: 3

PostPosted: Sun Feb 20, 2005 7:43 pm    Post subject: Re: Fedora or SuSE for centrino laptop? Reply with quote

In message <7xpsyz6pnx.fsf@ruckus.brouhaha.com>, Paul Rubin
<http@?.cx.invalid> writes
Quote:
Martin Liddle <news09@tynecomp.co.uk> writes:
Are you sure. What about <http://ipw2100.sourceforge.net/>?

That is the binary wrapper thingie, I think.

The project describes itself as "an open source 802.11b driver for the
ipw2100".
--
Martin Liddle, Tynemouth Computer Services, 27 Garforth Close,
Cramlington, Northumberland, England, NE23 6EW.
Web site: <http://www.tynecomp.co.uk>.
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Paul Rubin
*nix forums Guru


Joined: 28 Feb 2005
Posts: 1197

PostPosted: Sun Feb 20, 2005 7:43 pm    Post subject: Re: Fedora or SuSE for centrino laptop? Reply with quote

Martin Liddle <news09@tynecomp.co.uk> writes:
Quote:
Are you sure. What about <http://ipw2100.sourceforge.net/>?

That is the binary wrapper thingie, I think.
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Martin Liddle
*nix forums beginner


Joined: 18 Apr 2005
Posts: 3

PostPosted: Sun Feb 20, 2005 7:43 pm    Post subject: Re: Fedora or SuSE for centrino laptop? Reply with quote

In message <7x1xbfksy2.fsf@ruckus.brouhaha.com>, Paul Rubin
<http@?.cx.invalid> writes
Quote:
Berhane Temelso <gtg403f@mail.gatech.edu> writes:
Fedora Core 2 supposedly doesn't detect the built-in Intel wireless cards
in Centrino laptops and one would need to go through some hustle to get
WiFi working. Does anyone know if that problem has been fixed in Fedora
Core 3?

I don't think that will happen. There is some hack for using the
Intel cards under Linux by wrapping some binary driver, but there's no
free driver since the Intel card uses a secret interface. I have FC3
on a Thinkpad X40 and am using a PCMCIA wifi card (Prism chip) because
of this.

Are you sure. What about <http://ipw2100.sourceforge.net/>?

--
Martin Liddle, Tynemouth Computer Services, 27 Garforth Close,
Cramlington, Northumberland, England, NE23 6EW.
Web site: <http://www.tynecomp.co.uk>.
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Paul Rubin
*nix forums Guru


Joined: 28 Feb 2005
Posts: 1197

PostPosted: Sun Feb 20, 2005 7:43 pm    Post subject: Re: Fedora or SuSE for centrino laptop? Reply with quote

Berhane Temelso <gtg403f@mail.gatech.edu> writes:
Quote:
Fedora Core 2 supposedly doesn't detect the built-in Intel wireless cards
in Centrino laptops and one would need to go through some hustle to get
WiFi working. Does anyone know if that problem has been fixed in Fedora
Core 3?

I don't think that will happen. There is some hack for using the
Intel cards under Linux by wrapping some binary driver, but there's no
free driver since the Intel card uses a secret interface. I have FC3
on a Thinkpad X40 and am using a PCMCIA wifi card (Prism chip) because
of this.
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Jörg-Volker Peetz
*nix forums beginner


Joined: 20 Feb 2005
Posts: 7

PostPosted: Sun Feb 20, 2005 7:43 pm    Post subject: Re: fan control on evo n800v Reply with quote

Yayel wrote:
Quote:

I have a compaq evo n800v on which I want to use linux.
...
So I'm looking for a way to stop fan at boot time : it's active even if
the temperature is 30 degrees... if I do simple think which dont use to
many processor time (just emacs for example), the temperature never
increase and the fan is always on...

on my compaq presario 2825ea (which uses the same bios as the evo n800v)

with Debian sarge I use a script /etc/init.d/fan-switchoff:

#!/bin/sh
#
# Switch of the cooling fan (to correct kernel ACPI flaw).
#
PATH=/bin:/usr/bin:/sbin:/usr/sbin

TZ1_TEMPERATURE=/proc/acpi/thermal_zone/TZ1/temperature
FAN_STATE=/proc/acpi/fan/C1F2/state
#FAN_STATE=/proc/acpi/fan/C1D8/state

test -r $TZ1_TEMPERATURE || exit 0
test -w $FAN_STATE || exit 0

temp=`cat $TZ1_TEMPERATURE | awk '{ print $2 }'`
if [ $temp -lt 45 ]; then
echo "Switching off cooling fan."
echo -n 0 > $FAN_STATE
echo -n 3 > $FAN_STATE
fi

exit 0

which is linked to /etc/rcS.d/S71fan-switchoff. I don't use ACPI
modules, all is compiled into the kernel. Otherwise you have to load the
"fan" and "thermal" module before running this script. Also the
directory names in /proc/acpi/fan/ may be something else.
For SuSE you place these code lines into the script /etc/init.d/boot.local.

The relevant thing are the last two echo commands.
I found a hint for this on www.moosherr.de/linux/~mooz/evo_install.html.

Regards,
Jörg-Volker.
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