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Matt J. Gumbley - http://www.gumbley.demon.co.uk

Linux and the Toshiba Satellite 4030 CDT

Author: Matt J. Gumbley
Created: Fri Oct 1 15:52 1999
Last Updated: Mon Dec 30 22:03:36 2002


Please note that I no longer maintain these pages.

The new maintainer is James Stansfield - you may find his pages at http://www.iridani.net/net/40x0/index.asp

Please don't send me any mail regarding Linux on Toshiba laptops, as I can no longer offer help/advice. Please direct all contacts about this to the mailing list, details of which you will find in this page.

24 March 2001


This page is currently being rewritten to contain more up-to-date information. You may read the old version here. Installing Linux on Toshiba 40xx laptops is much easier now than it used to be - we know what to do now!

Please direct comments on the webpage to the mailing list mentioned below NOT Matt Gumbley directly, either at home or at work. I can't always take time out to answer at work, and I only check home email occasionally.

Many, many thanks to all those that contributed to this page, and the members of the linux-tosh-40xx mailing list who have helped so many users install Linux on these systems.

Matt Gumbley
1st Oct 1999


This page lists things you will have to be aware of when installing Linux on Toshiba 40xx laptops. It notes changes you'll have to make to the basic installation, and extra drivers you'll need to take advantage of the laptop's hardware.

Note: Thanks to all those people who have got in touch with me about this page - it's great to know that it has helped!

Please direct feedback about this page to the mailing list: Thanks to Paul Brown and Andrew Crawford of Newton Solutions, we now have a mailing list on which to discuss matters relating to Linux and the Toshiba 40xx series of laptops.

To subscribe, send a mail to majordomo@geekstuff.co.uk with the body of the mail saying subscribe linux-tosh-40xx

The list isn't only for Toshiba 4030 CDT owners, but for anyone who has a similar system.

I'll collate the collected wisdom of the list on this page as time permits. Please don't contact me directly about this stuff - that's what the list's for!

Table of Contents

1 Changes

  • 07/01/00 Psion Dacom Gold Card works
  • 27/01/00 Added more notes from Jon Wikne about getting the Lucent winmodem working.
  • 25/01/00 Added notes about Winmodem driver, thanks to Brian Almeida.
  • 21/01/00 Added Tom May's modelines for Tosh 4100.
  • 07/01/99 Added Honza's known good cards.
  • 25/10/99 Changed link to Jonathan's Toshiba utilities.
  • 08/10/99 Added note on blank lines, shifted screen, page mirror, John Savage's note about PCMCIA lockups on boot after installing maestro driver.
  • 04/10/99 Notes on Win98 installs; PCMCIA; mixer settings; added references.
  • 01/10/99 Started the new version of this page from scratch. The old page is here.

2 Acknowledgements

I'd like to thank my employer for allowing me relative freedom of choice when buying a laptop (and for actually buying it!), the maintainers of the "Linux for Laptops" pages for their invaluable advice when choosing a laptop, and to Linus Torvalds, Richard Stallman, The XFree86 Organisation, Red Hat software etc. for developing a system that's actually worth installing on a laptop.

Thanks to Trident, whose press release told me that the (unsupported) video chipset was pin-compatible with one that was, enabling me to add support for it in the XF86_SVGA server. Thanks to them for providing chipset info so the server can be extended. This information has been incorporated into XFree86 3.3.5. Particularly, I'd like to thank Scott Hovey and Iming Pau at Trident, Pavel Machek, Dirk Hohndel and Alan Hourihane (SuSE/XFree86) for their support.

Thanks to Alan Cox and Zach Brown (Building #3, RedHat) for developing the Maestro sound driver used by the laptop.

I also need to thank Bernd Reichert for the NT OS + Linux mini-HOWTO, David Hinds for the Linux PCMCIA HOWTO, Kenneth Harker for the Linux on Laptops pages, and everyone who has contacted me since I released this page - I'd thank everyone in turn, but then we'd never get to the real content! You know who you are - thanks!

Thanks should also go to Toshiba who have given in, and supplied information about their IrDA hardware to the Linux IrDA team. IMHO, it's about time that hardware manufacturers acknowledge the importance of Linux.

This page is now mirrored at:

  • , Thanks to Thijs van der Vossen.

3 Introduction

You can find the full specifications for the 4030 CDT on Toshiba U.K.'s Website.

The 4030 CDT works well under Linux. The video chipset is supported as standard under XFree86 3.3.5, available as an update to RedHat 6.0. The sound hardware is available as an add-on, and is available from Zach Brown's pages (@ RedHat).

The laptop has a built-in modem - it's a WinModem, but I'm told drivers are available. I chose a Xircom RealPort REM56G-100 PCMCIA network/modem card - this is supported by RedHat 6.0

3.1 Similar systems

The Toshiba 4030, 4060, 4070 and 4080 all share the same internal hardware with different size TFT's, hard drives and memory. I'm told the 4100XDVD will work with XFree86 as well.

4 Windows 95/98 Dual-Install

When we bought our Tosh, it came with Windows 95/98 pre-installed, with the option of choosing one and deleting the other.

I chose a Win95/FAT16 installation, since my disk repair tools (and the Linux systems I'd been using to that point) didn't understand FAT32. Win NT still doesn't, and since we'd need that too, I had to use FAT16. Red Hat Linux 6.0 supports FAT32. Note that if you choose Win98, the Toshiba setup program will use all 4GB for a single partition, and you'll have to use FIPS to resize it.

Note: If you apply the "rescue" CD, then it'll wipe out everything - including Linux.

After install, I found the disk laid out thusly:

/dev/hda: 255 heads 63 sectors 526 cylinders
/dev/hda1  *  1     1    261   2096451   6  DOS 16-bit >= 32M
/dev/hda2     262   262  525   2120580   5  Extended
/dev/hda5     262   262  522   2096451   6  DOS 16-bit >= 32M
/dev/hda6     523   523  525     24066   4  DOS 16-bit < 32M
Win95 was in /dev/hda1, the other two partitions were blank.

5 Preparing the disk for Linux and NT

I'd need to install NT 4.0 Workstation on here too, in its own NTFS partition, so decided to remove hda2, 5, and 6, and create three new primary partitions:
/dev/hda2 a 1.5GB NTFS partition for NT
/dev/hda3 a ~500MB Ext2 partition for Linux
/dev/hda4 a 32MB swap partition for Linux
I'll be using the NT boot loader as the first-stage loader. It'll take over the MBR, and I'll have an option in there for Windows 95 and one for Red Hat. This is to be done using the techniques described in the NT OS Loader + Linux mini=HOWTO

To prepare the disk, I used DOS' fdisk to delete both logical DOS drives under the extended partition (drives D: and E:), then to delete the extended partition itself.

DOS is so challenged that I could not create a second primary partition using DOS' fdisk, so I rebooted with a Linux boot disk, and did it using Linux fdisk.

In Linux' fdisk, I created the partitions shown above, then started the Red Hat install. (I did it this way, since I *know* old fdisk, not the new Red Hat disk druid thing!)

/dev/hda: 255 heads 63 sectors 526 cylinders
/dev/hda1  *  1     1    261   2096451   6  DOS 16-bit >= 32M
/dev/hda2     262   262  453   1542240   6  DOS 16-bit >= 32M (gets NTFS'd)
/dev/hda3     454   454  522    554242+  83 Linux native
/dev/hda4     523   523  525     24097+  82 Linux swap
Note: I recreated /dev/hda4 - it's the same number of cylinders as the old /dev/hda6, but has more blocks. I could have taken it to cyl 526, but there may be some valid reason for not using the last cylinder on the drive, so kept it at 525.

Rebooted... DOS 95 came up, drive D: couldn't be accessed, but that's OK. (NT reformatted that later anyway). Windows booted, which was the main thing.

6 Installing Red Hat 6.0

Note: I originally installed Red Hat 5.1 from the Powertools 5.1 set, then gradually upgraded bits of it to 5.2, and now 6.0, so I'm not really qualified to say whether a fresh 6.0 install works fine. You may want to check the old Red Hat 5 page (see address at top) for details.

Some points to note:

  • Do NOT install gpm, or, if you do, don't choose to run it at startup. If you do need it, install it and fix it after the installation.
  • You need XFree86 3.3.5 - if you use an earlier version, see the old Red Hat 5 page. We have a custom server and config file that will work for you, but not as well as 3.3.5 will.
  • I'm told that the autoconfigure options in XFree86 3.3.5 still do not work properly, so you may need my XF86Config file. The file available at this link is more up-to-date than the one on the old Red Hat 5 page, and has the following features:
    • Optional XInput section (currently commented out) that allows external mice to be plugged in after X starts
    • Uses accellerated mode.
    • Optional modelines and monitor frequencies from Jon Wikne; these don't work on all 4030CDT's.
    • Uses gb (United Kingdom) keymap. Search for the line: XkbLayout "gb" and change the keymap to whatevr you need, us, no, etc.
Please read the following disclaimer before you use my XF86Config file...

                 WARNING    WARNING     WARNING    WARNING


The following modelines have been reported to me for particular machines:
  • Toshiba 4100: Modeline "1024x768" 65 1024 1048 1184 1344 768 770 776 806

7 The Internal Modem

To get my Xircom modem working, I had to disable the internal modem in the BIOS. The internal one is a PCI-based Lucent Technologies winmodem (possibly based on LT Luna PCI chip). Under Win98 with Toshiba drivers it works in Win programs and in DOS window, but it doesn't work in "DOS mode". For some reason it uses IRQ 3 and I/O port 0x2f8 (you can actually set this in BIOS setup), so DOS/Linux think there is a COM2/ttyS1 - but there is no standard UART interface to communicate to, thus no communication.

I'm told by Brian Almeida that Lucent have releaced a binary-only driver for the Winmodem in 40xx laptops that works great with minicom, ppp, etc. It's available here.

Jon Wikne posted the following to the mailing list:

I am using it with RedHat 6.1. Be sure to get the most recent version
of the Lucent program (ltmodem.o), though.

> Also, if anyone has any tips on getting it started, I'd appreciate
> hearing them.

I hacked a small script to insert / remove the ltmodem.o during
startup / shutdown. It is installed in /etc/rc.d/init.d/lucent,
and linked as follows:

/etc/rc.d/rc0.d/K18lucent -> ../init.d/lucent
/etc/rc.d/rc1.d/K18lucent -> ../init.d/lucent
/etc/rc.d/rc2.d/K18lucent -> ../init.d/lucent
/etc/rc.d/rc3.d/S83lucent -> ../init.d/lucent
/etc/rc.d/rc4.d/S83lucent -> ../init.d/lucent
/etc/rc.d/rc5.d/S83lucent -> ../init.d/lucent

Here is the script itself:

#       /etc/rc.d/init.d/lucent
# Loads / unloads driver module for Lucent modem chip
# 20-01-2000 -- Jon Wikne

# Source function library.
. /etc/rc.d/init.d/functions

test -f /lib/modules/current/misc/ltmodem.o || exit 0

#       See how we were called.
case "$1" in
        # Check if modem is already running
        if [ -z "`/sbin/lsmod | grep ltmodem`" ] ; then
            echo -n 'Inserting Lucent modem module: '
            /sbin/insmod -f /lib/modules/current/misc/ltmodem.o
        if [ -n "`/sbin/lsmod | grep ltmodem`" ] ; then
            echo -n 'Removing Lucent modem module: '
            /sbin/rmmod ltmodem
        $0 stop
        $0 start
        echo "Usage: /etc/rc.d/init.d/lucent {start|stop|reload}"
        exit 1

exit 0

One prereuisite of the script is that you have a link in the
/lib/modules directory pointing "current" to whereever that
is (i.e. which kernel you use).

Exactly how you use the modem depends somewhat on what is at the
other end (i.e. your ISP, employer or fixed-line computer), but
I use the following script (<*> to be replaced by own info):

pppd /dev/ttyS14 115200 debug connect \
'chat -v ABORT BUSY ABORT "NO CARRIER" "" ATDT<phone number> CONNECT ""' \
noipdefault ipcp-accept-local ipcp-accept-remote \

In /etc/ppp/ip-up.local you may have to set up your routing.
In /etc/ppp/ip-down.local you may have to reset your routing.

In /etc/ppp/options I have:

asyncmap 0
netmask <your mask here>
lcp-max-configure 60

Hope this is of some use to someone.

8 Multimedia

I'm using stock RH 6.0, plus most of the latest updates from updates.redhat.com - no later kernel than 2.2.5-15 required, it seems.

Downloaded the maestro driver from http://people.redhat.com/~zab/maestro/ (or http://www.zabbo.net/maestro/), did make, and copied the resulting maestro.o into /lib/modules/2.2.5-15/misc

I ran sndconfig, but this didn't seem to work 100%, so I hand edited /etc/conf.modules to read:

alias parport_lowlevel parport_pc
pre-install pcmcia_core /etc/rc.d/init.d/pcmcia start
alias sound maestro
pre-install sound insmod sound

(/etc/sysconfig/soundcard still says CARDTYPE=WSS - this doesn't seem to get used anywhere, or does it? Haven't got midi working yet; not really too bothered)

MP3's play; CD's play. Some people still report problems. Check Zach Brown's page above for updates.

Note: You may notice that the maestro driver leaves the mixer settings quite low - so if you insmod it and the sound doesn't make any, then turn the mixer up.

9 PCMCIA (PC Card) Compatibility

The following devices are known to work with these laptops:
  • Xircom RealPort REM56G-100. What Matt uses - seems to work fine with no real problems, although I haven't managed to get it to work @ 100Mbps yet.
  • 3Com/Megahertz 3CXEM556 Ethernet/Modem combo card (note: this is *not* a Cardbus card) [with kernel 2.2.12, PCMCIA 3.1.8, the BIOS PCIC mode setting is set to "Automatic"]
  • Adaptec APA-1480 SlimSCSI
  • noname smartmedia (Olympus digital camera memory) adapter reporting itself as "ATA/IDE Fixed Disk", purchased at www.d-store.com
  • Psion Dacom Gold Card
The following devices have been reported as not working or not working fully:
  • Intel Etherexpress Pro 10/100 Mobile. Bruce Maxwell says it's supposedly supported under the latest PCMCIA package.
  • Trust 10meg (generic NE2000). Steve Hardy says it works in '98, but isn't recognised in a 4030CDT with RH5.2.
  • Paulo Meriggi has problems with a PCMCIA Wavelan.
Some people have reported problems with latest versions of PCMCIA stuff - if in doubt, use only the updates from Red Hat's site.

Jon Wikne says:

I have done some systematic tests with kernels 2.2.10 and 2.2.12
together with different pcmcia versions and the Xircom REM56G-100BTX
Ethernet / modem card. Whether there are problems or not is definitely
pcmcia version dependant (not that this excludes other possible

Here are the results:

pcmcia-3.0.9    -> OK
pcmcia-3.0.10   -> OK
pcmcia-3.0.11   -> OK
pcmcia-3.0.12   -> OK, but does not compile on kernel 2.2.12
pcmcia-3.0.13   -> *NOT* OK
pcmcia-3.0.14   -> *NOT* OK
pcmcia-3.1.0    -> OK

I made the pcmcia driver developer Dave Hinds aware of the problems with
the Xircom card on 3.0.13 and 3.0.14. Whether it was this report that
lead to the 3.1.0 being OK again, or that was a coincidence, I don't

Also, the possible impact of pcmcia revisions on cards _other_ than
the Xircom REM56G-100BTX I know nothing about. For all I know, those
that I label "OK" above might be buggy, and vice versa, in the
context of other cards.

PCMCIA SCSI is broken out of the box. Using an Adaptec 1460 PCMCIA card, You need a later kernel - 2.2.12-7 has been confirmed to work.

Note that when installed, you'll have to more some startup files around, so that PCMCIA is started before the network.

Note: If you install the maestro sound module on RH 6.1, you may find that first time after installing the maestro.o module (insmod etc), you reboot and the PC hangs at the pcmcia module loading (In the case of a 3com ethernet card). If you force quit and reboot, wait for the hda to be fixed and then load inetractively, saying no to the pcmcia module it loads fine only ethernet-less - if you then reboot normally and let it boot all by itself it works fine, sound and pcmcia.

(Thanks to John Savage)

10 Miscellaneous Tips

10.1 Getting into the BIOS

When you power up, hold down the Escape key, you're asked to press F1. Don't change the screen size to 'expand' (wide' inthe BIOS, as Linux will not accept this.

10.2 Booting from CD-ROM

The system boots from CD-ROM if you power the laptop off, hold down 'c', and reboot.

10.3 Missing pixels, black lines, shifted screen?

Upgrade to XFree86 3.3.5 and run Xconfigurator.

11 Conclusions

The 4030 CDT is a nice laptop, great with Win95 (if that isn't an oxymoron), and works very well with Red Hat 6.0, once tweaked.

As a general rule when purchasing equipment that will be used with Linux, don't go for state-of-the-art, as the drivers are probably not ready.


  • Screen clarity
  • Excellent keyboard
  • Eraserhead mouse (not a trackpoint!)
  • CD-ROM, and bootable too!
  • Windows 95 dual-install leaves a D: partition free, making installation quite straightforward.
  • Cyber9525DVD video chipset is now officially supported by XFree86.
  • Internal modem is a WinModem. See http://www.winmodems.org/ for information on why these are Bad, bad, BAD. It can be made to work, I'm told, using the binary-only driver from "http://linmodems.org/linux568.zip">here. If you choose not to use this, you may have to disable it in the BIOS, and use the RealPort modem.
  • Sound chipset is a little new, and although a driver is available, it isn't working 100% yet.
Major things you'll have to do:
  • Use fips to resize the single 4GB FAT32 partition, if you chose the Win98 installation.
  • Get Red Hat 6.0, and don't enable gpm. RH 6.1 is out Real Soon Now. Get later kernels if you need PCMCIA SCSI. (Bug in aha152x_cs driver in earlier kernels) Watch those PCMCIA software versions though (See Jon Wikne's test results above).
  • Get a real network/modem card. The RealPort is nice. Other cards known to work are: 3Com/Megahertz 3CXEM556 Ethernet/Modem combo card (note: this is *not* a Cardbus card);
  • Get Jonathan Buzzard's fan control program.
  • Get the Maestro drivers from Zach Brown.

12 References and Resources

Matt J. Gumbley - matt <at> gumbley <dot> demon <dot> co <dot> uk