SDB: Description of IBM Thinkpad A20m

Description of IBM Thinkpad A20m

Support knowledgebase (laptop_daten_ibm_thinkpad_A20m)

Exact modelname

IBM Thinkpad A20m 2628-4UG
Manufacturer's description can be found at : Http://www5.pc.ibm.com/us/me.nsf/d1cd5924e7a2cfda8525668d006a1781/596143f04757319085256968004dbdc1/$FILE/Ths6345r.pdf (in English)

Processor, Memory, Bus

Processor

processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 8
model name      : Pentium III (Coppermine)
stepping        : 3
cpu MHz         : 597.409
cache size      : 256 KB
fdiv_bug        : no
hlt_bug         : no
sep_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 mmx fxsr xmm
bogomips        : 1192.76

256 kByte cache,
64 MByte basic memory equipment, optional upgrade 512.

Graphic chip, Display

Graphic chipset: ATI Technologies Inc 3D Rage P/M Mobility AGP 2x
Display: XGA/SVGA 1024 x 768

XServer: The XFree86 Server Version 4.0.1 works fine. No particular server options needed.From /root/.X.err :

XFree86 Version 4.0.1 / X Window System
...
(==) ATI(0): Chipset:  "ati".
(--) ATI(0): ATI 3D Rage Mobility graphics controller
detected.
(--) ATI(0): 8192 kB of SDRAM (1:1) detected.
(II) ATI(0): Maximum pixel clock:  230.000 MHz.
...

From lspci -v :

01:00.0 VGA compatible controller: ATI Technologies Inc 3D Rage P/M Mobility AGP 2x (rev 64) (prog-if 00 [VGA])
        Subsystem: IBM: Unknown device 0154
        Flags: bus master, stepping, medium devsel, latency 66, IRQ 11
        Memory at f5000000 (32-bit, non-prefetchable)
        I/O ports at 2000
        Memory at f4200000 (32-bit, non-prefetchable)
        Capabilities: [50] AGP version 1.0
        Capabilities: [5c] Power Management version 2

From lspci -n :
```
01:00.0 Class 0300: 1002:4c4d (rev 64)
```

From SuperProbe :

                      First video: Super-VGA
        Chipset: ATI Rage Mobility (Port Probed)
        Memory:  8192 Kbytes
        RAMDAC:  ATI Mach64 integrated 15/16/24/32-bit DAC w/clock
                 (with 6-bit wide lookup tables (or in 6-bit mode))
                 (programmable for 6/8-bit wide lookup tables)
        Attached graphics coprocessor:
                Chipset: ATI Mach64
                Memory:  8192 Kbytes

Pointing Device

Trackpoint with 3 Buttons. Recognized and supported under Linux as a standard PS/2 mouse.
Port for connection of an external PS/2 mouse available. Adapter needed.

Sound

Sound chip: Cirrus Logic CS 4614/22/24 [CrystalClear SoundFusion Audio Accelerator]

lspci -v Output :

00:05.0 Multimedia audio controller: Cirrus Logic CS 4614/22/24 [CrystalClear SoundFusion Audio Accelerator] (rev 01)
        Subsystem: IBM: Unknown device 0153
        Flags: bus master, slow devsel, latency 64, IRQ 11
        Memory at f4122000 (32-bit, non-prefetchable)
        Memory at f4000000 (32-bit, non-prefetchable)
        Capabilities: [40] Power Management version 2

Supported by ALSA Version 0.5.8.
/usr/sbin/alsaconf generates the following entry in the /etc/modules.conf :

alias char-major-116 snd
options snd snd_major=116 snd_cards_limit=1
alias snd-card-0 snd-card-cs461x
options snd-card-cs461x snd_index=0 snd_id=card1
alias sound-slot-0 snd-card-0
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss

Doesn't survive a suspend/resume cycle.

PCMCIA

Availalbe slots : 2

PCMCIA controller: Texas Instruments 1450 rev 03 PCI-to-CardBus
From /var/log/messages:

kernel: Linux PCMCIA Card Services 3.1.17
kernel:   kernel build: 2.2.16 #1 Wed Aug 2 20:03:33 GMT 2000
kernel:   options:  [pci] [cardbus] [apm]
kernel: PCI routing table version 1.0 at 0xfdee0
kernel:   00:02.0 -> irq 11
kernel:   00:02.1 -> irq 11
kernel: Intel PCIC probe:
kernel:   TI 1450 rev 03 PCI-to-CardBus at slot 00:02, mem 0x50000000
kernel:     host opts [0]: [ring] [serial pci & irq] [pci irq 11] [lat 64/176] [bus 2/4]
kernel:     host opts [1]: [ring] [serial pci & irq] [pci irq 11] [lat 64/176] [bus 5/7]
kernel:     ISA irqs (scanned) = 3,4,5,7,9,10 PCI status changes

probe -v and probe -m Output:

  PCI bridge probe: TI 1450 found, 2 sockets.
  i82365

IrDA

findchip -v Output :

Found NSC PC87338 Controller at 0x2e, DevID=0x0b, Rev. 2
    SIR Base 0x0, FIR Base 0x0
    IRQ = 0, DMA = -1
    Enabled: no, Suspended: no
    UART compatible: yes
    Half duplex delay = 0 us

works fine

External connection

1 USB connector. lspci -v Output:

00:07.2 USB Controller: Intel Corporation 82371AB PIIX4 USB (rev 01) (prog-if 00 [UHCI])
        Flags: medium devsel, IRQ 11
        I/O ports at 1860

APM

The following APM Kernel configuration works :

    [*] Enable APM at boot time
    [*] Do CPU IDLE calls
    [*] Enable console blanking using APM
    [*] Ignore multiple suspend/resume cycles
    [*] Allow interrupts during APM BIOS calls

Suspend to memory and suspend to disk work fine
Necessary for suspend to disk : hibernation file must be created under Windows.

Builtin ethernet device

Intel Corporation 82557 [Ethernet Pro 100]

lspci -v Output :

00:03.0 Ethernet controller: Intel Corporation 82557 [Ethernet Pro 100] (rev 09)
        Subsystem: Intel Corporation: Unknown device 2408
        Flags: bus master, medium devsel, latency 66, IRQ 11
        Memory at f4120000 (32-bit, non-prefetchable)
        I/O ports at 1800
        Memory at f4100000 (32-bit, non-prefetchable)
        Capabilities: [dc] Power Management version 2

Other storage media

Hard disk : IBM-DARA-212000, 11509MB w/418kB Cache, CHS=1559/240/63
CD-ROM : MATSHITADVD-ROM ATAPI 24X DVD-ROM drive, 512kB Cache
Floppycontroller : National Semiconductor PC87306
Floppy : not availabe, external floppy, normal floppy, pcmcia, USB, LS 120

Output of fdisk -l :

Disk /dev/hda: 240 heads, 63 sectors, 1559 cylinders
Units = cylinders of 15120 * 512 bytes

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SDB-laptop_daten_ibm_thinkpad_A20m

SDB-laptop_daten_ibm_thinkpad_A20m, Copyright SuSE Linux AG, Nürnberg, Germany - Version: 20. Nov 2000
SuSE Linux AG - Last generated: 21. Nov 2000 by droesch (sdb_gen 1.40.0)