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TP 600E - Guide to installing Red Hat Linux 6.0
| TP 600E - Guide to installing Red Hat Linux 6.0
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Service Hints & Tips |
This document discusses the installation process,
configuration settings, and compatibility issues
as they pertain to running Red Hat Linux 6.0 on
a ThinkPad 600E. As the Linux community continues
to develop and enhance the support for laptop
power management and built-in hardware devices,
this document will be updated accordingly.
Last update
September 13th, 1999.
Target audience
This Guide is intended for ThinkPad users who
have some Linux experience and are comfortable
with the installation process for Red Hat Linux
6.0. We do not attempt to explain all facets of
a standard Red Hat Linux installation; instead,
we focus on providing information that is specific
to the installation and configuration of Red Hat
Linux 6.0 on the ThinkPad 600E. For details on
the Red Hat Linux 6.0 installation process, please
refer to the Installation Guide for Red Hat Linux 6.0.
Contents
Part I.
Part II.
Part I. Overview
The sections in Part I provide an overview of
installing and configuring Red Hat Linux 6.0 on
the ThinkPad 600E. Also included is a list of
links to other relevant sources of Linux information.
General discussion: Red Hat Linux 6.0 and the ThinkPad 600E
Right out of the box, Red Hat Linux 6.0 contains
drivers for many of the devices built into the
ThinkPad 600E, including video, audio, serial,
parallel, diskette, hard disk, CD-ROM, mouse,
and Advanced Power Management (APM). With the
exceptions of audio and APM support, these devices
are ready for use immediately after installation
without any additional configuration. This section
discusses some of the Linux compatibility issues
with the built-in devices.
Audio.
The ThinkPad 600E uses a CS4239 chip for FM synthesis
and 16-bit playback and record of waveform data.
The driver included with Red Hat Linux that is
most suited to supporting this audio chip is the
CS4232 driver, which generically supports the
CS4232 and chips that are compatible with it.
When configured as described later in this document,
the CS4232 driver provides basic audio support
on the ThinkPad 600E.
APM.
Out of the box, the Linux kernel is not correctly
configured to support power management on the
ThinkPad 600E. However, if you re-compile the
kernel using the options described later in this
document, you'll have support for basic power
management, including the ability to "suspend"
and "resume." It is important to note that the
Linux kernel does not notify device drivers of
power management events such as suspend and resume,
so you may find that some devices may not work
correctly following a suspend-resume sequence;
the CS4239 chip, which provides audio support,
is such a device.
Infrared.
Although we have not yet done infrared compatibility
testing, we have received reports from ThinkPad
users indicating that the built-in infrared device
does work correctly, after the appropriate Linux
software is obtained. To learn more about using
your ThinkPad's infrared device with Linux, take
a look at some of the links we've included in this document.
ACP Modem.
The internal modem of the ThinkPad 600E uses
an IBM 3780i digital signal processor (DSP), and
is implemented using a combination of hardware
and software. Unlike a hardware-only modem typically
found in desktop systems and workstations, the
ThinkPad ACP Modem requires device drivers in
order to function. Although we are currently evaluating
whether to provide Linux support for the ACP Modem,
IBM has not announced plans for supporting the
ACP Modem under Linux.
PC Cards.
The versions of the Linux kernel and PCMCIA Card
and Socket Services included with Red Hat Linux
6.0 are not sufficient to support the use of PC
Cards on the ThinkPad 600E. As described later
in this document, you must upgrade both the Linux
kernel and PCMCIA Card and Socket Services before
using PC Cards.
Links to non-IBM Linux resources
Throughout this document we have included links
to various non-IBM Linux resources. For your convenience,
the table below provides a list of those links,
along with a few others that we thought you might
find useful.
Note:
These are non-IBM sites, and as such they are
not supported nor maintained by IBM.
ThinkPad configurations used in developing this Guide
In creating this Guide, the following ThinkPad
600E models were used as a basis for testing Linux
compatibility. The recommendations made in this
Guide are based the results of that testing.
2645-4AU
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366 MHz Pentium II
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64MB RAM
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6.4GB IDE hard disk
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NeoMagic MagicMedia256AV video chipset with 2.5MB of SGRAM
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24X-10X CD-ROM
2645-4BU
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400 MHz Pentium II
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32 MB and 64MB RAM
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10.0GB IDE hard disk
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NeoMagic MagicMedia256AV video chipset with 2.5MB of SGRAM
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24X-10X CD-ROM
Built-in devices supported by Linux
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Device
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Supported?
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Comments
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Basic video
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Yes
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.
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Basic audio
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Yes
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Requires special configuration
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TrackPoint (3 button)
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Yes
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.
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Diskette drive
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Yes
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.
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Hard disk drive
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Yes
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.
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CD-ROM drive
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Yes
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.
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Serial port
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Yes
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.
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Parallel port
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Yes
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.
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Infrared port
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-
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Not tested
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ACP Modem
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No
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No drivers available
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APM
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Yes
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Requires re-compiled kernel
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PCMCIA
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Yes
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Requires updated kernel and PCMCIA support
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"At-a-glance" summary of the installation procedure
This section summarizes the ThinkPad-specific
steps for installing and configuring Red Hat Linux
6.0. The sections in Part II will provide the
details.Boot from the Red Hat 6.0 installation
CD and begin the installation.
-
When asked for mouse information, select
Generic Mouse (PS/2)
. Do not select "Emulate 3rd mouse button."
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When asked for information about your video adapter
and display, select
NeoMagic (laptop/notebook)
for the video card and
LCD Panel 1024x768
for the monitor.
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When asked to select which services to run at
boot, select the
APMD
service.
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After installation is complete, configure the audio driver.
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For proper PC Card support, upgrade to kernel
2.2.12
and PCMCIA card and socket services
3.0.14
.
-
To enable proper handling of suspend-resume power
events, re-compile the kernel with the necessary settings.
ThinkPad Configuration program
IBM has not released a version of the ThinkPad
Configuration program that runs on Linux. However,
you can run the Windows version of the ThinkPad
Configuration program by dual-booting to a Windows
installation, and you can run the DOS-based PS2
utility by creating a DOS boot diskette that includes
the PS2 utility. Both methods will give you access
to most ThinkPad configuration settings. Additionally,
several developers in the Linux community have
created a native Linux application that provides
functions similar to that of the PS2 utility.
Click here
to go to the home page for that application.
Part II. Installation and Configuration
Part I provided an overview of Linux support on
the ThinkPad 600E. Part II will describe the Linux
installation procedures and configuration settings
that are specific to the ThinkPad 600E.
Starting the installation
To begin installation of Red Hat Linux, follow
the instructions in the Red Hat Linux Installation
Guide. Since the ThinkPad 600E supports booting
from CD-ROM, you should be able to start the installation
of Red Hat Linux by inserting CD 1 into your CD-ROM
drive and rebooting your computer. If booting
from CD-ROM has been disabled on your computer,
then you may need to boot from the Red Hat Linux
installation boot diskette. Refer to the Installation
Guide for details.
Mouse
Red Hat Linux includes support for the built-in
3-button TrackPoint mouse. When the Setup program
asks you to identify your mouse, make the following
selections. Note that Linux will use all three
mouse buttons, so do not select "Emulate 3 Buttons."
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Setup prompt
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Recommended selection
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What type of mouse do you have?
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Generic Mouse (PS/2)
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Emulate 3 Buttons?
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No
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Video
Red Hat Linux includes a video driver that is
compatible with the NeoMagic chipset in the ThinkPad
600E. When the Setup program asks you to identify
your video card, make the following selections.
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Setup prompt
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Recommended selection
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Choose a Card
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NeoMagic (laptop/notebook) - MagicGraph 128 series
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Monitor Setup?
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LCD Panel 1024x768
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Screen Configuration
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Don't Probe
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Video Memory
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2 MB
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Probe for Clocks
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Skip
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Clockchip Configuration
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No Clockchip Setting (recommended)
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Select Video Modes
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1024x768 16-bit
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Advanced Power Management (APM)
For APM to work correctly, the Linux APM service
(APMD) must be running, and the Linux kernel must
have been compiled with APM settings that are
appropriate for the ThinkPad 600E.
When the Setup program asks you to specify which
services should be started during boot, be sure
to select the service
APMD
.
The pre-built kernels included with Red Hat Linux
6.0 do not include the necessary APM settings
for the ThinkPad 600E. After you've completed
the Linux installation, you will need to re-build
the kernel using the following APM-related settings.
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Kernel option
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Setting
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Advanced Power Management BIOS support
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Yes
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Ignore USER SUSPEND
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No
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Enable PM at boot time
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Yes
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Make CPU idle calls when idle
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Yes
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Enable console blanking using APM
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Yes
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Power off on shutdown
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Yes
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Ignore multiple suspend
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Yes
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Ignore multiple suspend/resume cycles
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Yes
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Allow interrupts during APM BIOS calls
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Yes
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For information on how to re-build the kernel,
refer to the "Linux Kernel HOWTO" that is available
as part of the
Linux Documentation Project
.
Sound
Ordinarily, configuring Linux sound support is
as simple as running the
sndconfig
utility and specifying the audio hardware to
be used as well as its resource configuration.
You may recall from Part I of this Guide that
the audio chip in the ThinkPad 600E is a CS4239,
and that it is supported by the standard CS4232
audio driver included with Red Hat Linux. However,
there is a problem when using the standard CS4232
audio driver with the ThinkPad 600E. The symptom
is that when you play a wave file, the sound plays
two or more times with various parts of the sound
interwoven, as if the interrupt resource was specified
incorrectly. The problem occurs when the CS4232
driver is loaded in the usual fashion during boot-up,
but it does not occur if the driver is loaded
later. There is a work-around, but it may be too
involved for a user who is new to Linux. The work
around, describe shortly, involves creating a
script that will be run during the initialization
of a run-level.
The procedure for configuring sound on the ThinkPad
600E is summarized below.
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Use the sndconfig utility to specify the audio
device and its resources.
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Create a script file that loads as part of the
desired run-levels. The script will stop and restart
the CS4232 audio driver.
Run sndconfig.
From a Linux command prompt, issue the command
sndconfig
. This will start the sound configuration utility,
which will let you specify the type of sound card
that you have and the resources that it uses.
When prompted for the card type, use the following setting.
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Setup prompt
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Recommended selection
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Card Type
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Crystal CS423x sound chip
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Next, select the I/O, IRQ, and DMA resources for
the sound chip. Listed below are the default settings
for the ThinkPad 600E. You can try these, or use
a ThinkPad Configuration program to determine
the actual settings. In most cases, the settings
below should work.
An interesting anomaly:
On occasion we have found some systems that require
the DMA and DMA2 settings to be reversed (DMA=0,
DMA2=1), even when the PS2 utility shows that
the default settings are in effect! So if the
default settings are in effect for your system
but you don't hear any sound with Linux when you
specify those settings, try swapping the DMA values.
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Setup prompt
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Recommended selection
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I/O PORT
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0x530
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IRQ
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5
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DMA
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1
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DMA 2
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0
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MPU I/O
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330
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MPU IRQ
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9
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After you specify the resource settings, sndconfig
will play some samples. Try to select a resource
configuration that results in clear playback of
the audio sample.
Another interesting anomaly:
On some systems we noticed that the sample playback
was garbled, even though the correct settings
were specified. In these cases, normal audio playback
worked correctly, and audio was garbled only during
playback of sndconfig's test samples.
Create the CS4232 script.
To work around the problem of repeating wave
data, you must load the CS4232 driver later in
the boot process. One way to do this is by creating
a script that is executed during run-level initialization.
You can use a script like the one below.
Save the script as
/etc/rc.d/init.d/cs4232
and set the "execute" file attribute. Then, for
each run-level that you want to include sound
support, create an appropriate "symbolic link"
to the file from the corresponding run-level directories.
For example, to run the script as part of run-level
5, create the link
/etc/rc.d/rc5.d/S84cs4232
that points to
/etc/rc.d/init.d/cs4232
. The "S84" prefix was chosen for this example
because, by default, the mixer service starts
as "S85", and we want the CS4232 driver to be
functional before that.
With the above script in place, the CS4232 driver
will be unloaded and reloaded as the run-level
is initialized, which will put the CS4232 driver
and sound chip into a good state.
Upgrading the kernel and PCMCIA Card and Socket Services
As discussed in Part I, PCMCIA support will not
function correctly with the kernel and PCMCIA
support provided with Red Hat Linux 6.0. For proper
PCMCIA support, you must upgrade both the Linux
kernel and PCMCIA Card and Socket Services. At
the time of this writing, the recommended versions are:
-
Kernel 2.2.12
-
PCMCIA Card and Socket Services 3.0.14
For the Linux kernel, the files are available from
The Linux Kernel Archives
, and documentation on how to upgrade and build
the kernel is in the "Linux Kernel HOWTO" that
is available as part of the
Linux Documentation Project
. For PCMCIA Card and Socket Services, files and
HOWTO information are available from the
Linux PCMCIA
Information Page.
Note: When upgrading the kernel, remember to configure
the kernel using the APM settings outlined in the
Advanced Power Management
section of this document.
End of document.
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Document ID: MIGR-4BP6Q6
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Copyright � 1998 IBM Corporation
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