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Linux on Compaq Presario 705

Linux on Compaq Presario 705

Display (int/ext)
Hard Disk
Graphic adapter

Important note

Be aware that it does not have an integrated serial port !! (I found that out after I had bought it...)
(you will need to use a USB protocol converter if you want to use any serial peripherals).

Core system

There is a bug in the PCI chipset which causes the machine to lock when using a kernel optimised for Athlon/Duron. A workaround is included in kernel 2.4.18 and probably in later kernels.
This workaround is enabled if you see the following line in your kernel log:

    Disabling VIA memory write queue: [55] 3c->1c

For some reason, the system hangs on boot if you enable the local APIC.
Use kernel 2.4.18 and choose "Athlon/Duron/K7 processor family"; disable "Use local APIC on single processors".

Here is my .config for kernel 2.4.18
and the .config for the 2.5.x development serie.

There aren't any problem with IRQ routing neither with vanilla 2.4.x kernel nor with any of the ACPI patches.

    00:00.0 Host bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133] (rev 80)
    00:01.0 PCI bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133 AGP]
    00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (rev 42)
    00:07.1 IDE interface: VIA Technologies, Inc. Bus Master IDE (rev 06)
    00:07.2 USB Controller: VIA Technologies, Inc. USB (rev 1a)
    00:07.4 Bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 40)
    00:07.5 Multimedia audio controller: VIA Technologies, Inc. VT82C686 AC97 Audio Controller (rev 50)
    00:09.0 Communication controller: Conexant HSF 56k HSFi Modem (rev 01)
    00:0a.0 CardBus bridge: Texas Instruments PCI1410 PC card Cardbus Controller (rev 01)
    00:0b.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C (rev 10)
    01:00.0 VGA compatible controller: S3 Inc.: Unknown device 8d02 (rev 01)

You can view the more verbose output of lspci


    -ROOT- [zefiro] on pts/0 >cat /proc/cpuinfo
    processor       : 0
    vendor_id       : AuthenticAMD
    cpu family      : 6
    model           : 6
    model name      : Mobile AMD Athlon(tm) 4 Processor
    stepping        : 2
    cpu MHz         : 996.582
    cache size      : 256 KB
    fdiv_bug        : no
    hlt_bug         : no
    f00f_bug        : no
    coma_bug        : no
    fpu             : yes
    fpu_exception   : yes
    cpuid level     : 1
    wp              : yes
    flags           : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca
                    : cmov pat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow
    bogomips        : 1985.74

Power management

The Presario 705 does not have an APM compatible BIOS. Unless you use ACPI, the fun will run all the time and the machine will run very hot. I can report success with version 20020404 of the ACPI code available from the ACPI project's site.
With this patch, all ACPI functionality works with the exception of suspend and performance management. (Both S3 and S4 suspend states cause a hang on wakeup; according to Pavel Machek, the problem is understood and being worked on. The Presario's BIOS doesn't advertise support for S1.)
(The Presario does performance management using AMD's PowerStep interface and the support for this is in development in the 2.5.x series.)

Apply acpi-2002xxxx-2.4.xx.diff with date >= 2000918 or a previous version but with this kacpid.patch applied, then enable all ACPI options.

-ROOT- [zefiro] on pts/0 >cat /proc/acpi/battery/BAT0/info
    present:                 yes
    design capacity:         53280 mWh
    last full capacity:      47315 mWh
    battery technology:      rechargeable
    design voltage:          14800 mV
    design capacity warning: 4721 mWh
    design capacity low:     0 mWh
    capacity granularity 1:  1480 mWh
    capacity granularity 2:  1480 mWh
    model number:            6000
    serial number:           1
    battery type:            4
    OEM info:                 COMPAQ 

-ROOT- [zefiro] on pts/0 >cat /proc/acpi/processor/CPU0/info
    processor id:            0
    acpi id:                 1
    bus mastering control:   no
    power management:        yes
    throttling control:      yes
    performance management:  no
    limit interface:         yes

Supported ACPI state are (S0 S3 S4 S5)

Download the DSDT and the FADT

Software suspend

The swsusp patch appears to work with the Presario, and partly compensates for the lack of ACPI suspend. 
Swsusp can't disable automatically the eth interface, so you have the disable and enable it manually before and after software suspend.

I use this suspend script.  

If you want to try swsusp apply patch-acpi-acpi2002xxxx-swsuspx and select "Software suspend" in the kernel config.

Dual Boot with Windows XP

I've deleted the system rescue partition that comes with the presario out of the box, resized the NTFS partition with Partition Magic 7.0 and installed linux in the second partition. So I have windows on /hda1, linux on /had2 and swap partition on /hda3
If you want to enable the dual boot, here is an example of lilo.conf:

    default="linux 2.4.x"

        label="linux 2.5.x"
        append="hdc=ide-scsi resume=/dev/hda3"

        label="linux 2.4.x"

        label="Windows XP"


IDE system

Select "Use PCI DMA by default when available" and "VIACXXX chipset support" in your kernel configuration (see the above .config) 

    -ROOT- [zefiro] on pts/0 >hdparm -Tt /dev/hda

     Timing buffer-cache reads:   128 MB in  0.85 seconds = 150.59 MB/sec
     Timing buffered disk reads:  64 MB in  3.13 seconds = 20.45 MB/sec 

The Hard Disk uses UltraDMA/100 as you can see form :

    -ROOT- [zefiro] on pts/0 >hdparm -i  /dev/hda


     Model=HITACHI_DK23CA-20, FwRev=00H1A0J1, SerialNo=1224KP
     Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
     RawCHS=16383/16/63, TrkSize=36477, SectSize=579, ECCbytes=4
     BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=off
     CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=39070080
     IORDY=yes, tPIO={min:400,w/IORDY:120}, tDMA={min:120,rec:120}
     PIO modes: pio0 pio1 pio2 pio3 pio4
     DMA modes: sdma0 sdma1 sdma2 mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
     AdvancedPM=yes: mode=0x80 (128) WriteCache=enabled
     Drive Supports : ATA/ATAPI-5 T13 1321D revision 3 : ATA-1 ATA-2 ATA-3 ATA-4 ATA-5

    -ROOT- [zefiro] on pts/0 >hdparm -i  /dev/hdc


     Model=TOSHIBA DVD-ROM SD-R2002, FwRev=1Q35, SerialNo=
     Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
     RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
     BuffType=unknown, BuffSize=2048kB, MaxMultSect=0
     (maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
     IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
     PIO modes: pio0 pio1 pio2 pio3 pio4
     DMA modes: mdma0 mdma1 *mdma2
     Drive Supports : ATA/ATAPI-5 T13 1321D revision 3 : ATA-2 ATA-3 ATA-4 ATA-5


No problem with it. I''ve tested a Cisco Aironet 353, and it works well. The only issue is that there is only one slot for PCMCIA cards. I cannot insert the arionet and the GPS module at the same time...
Choose "Support for hot-pluggable devices", "PCMCIA/CardBus support" and "CardBus support".


Works fine with the 8139too driver. Choose "RealTek RTL-8139 PCI Fast Ethernet Adapter support".

-ROOT- [zefiro] on pts/0 >lspci -vv -s 00:0b.0
00:0b.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C (rev 10)
        Subsystem: Realtek Semiconductor Co., Ltd. RT8139
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 64 (8000ns min, 16000ns max)
        Interrupt: pin A routed to IRQ 11
        Region 0: I/O ports at 1400 [size=256]
        Region 1: Memory at e8010000 (32-bit, non-prefetchable) [size=256]
        Capabilities: [50] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0-,D1+,D2+,D3hot+,D3cold+)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME- 

Add to the /etc/modules.conf the following line:

    alias eth0 8139too


The sound chipset is an AD1886 and is supported by the ac97_codec. 
Version 0.9.0rc5 of the ALSA drivers supports this machine out of the box. Simply configure them with

    ./configure --with-cards=via82xx

then edit the /etc/modules.conf and add:

    alias char-major-116 snd
    options snd cards_limit=1
    alias char-major-14 soundcore
    alias snd-card-0 snd-via82xx
    alias sound-slot-0 snd-card-0
    alias sound-slot-1 snd-card-0
    alias sound-service-0-0 snd-mixer-oss
    alias sound-service-1-0 snd-mixer-oss
    alias sound-service-0-1 snd-seq-oss
    alias sound-service-0-2 snd-seq-midi
    alias sound-service-0-3 snd-pcm-oss
    alias sound-service-0-8 snd-seq-oss
    alias sound-service-0-12 snd-pcm-oss

If you want to try the development kernel 2.5.x, the ALSA driver are integrated in the kernel tree.
Chose "Sequencer support", all the bool state of "OSS api emulation" and unter PCI devices "VIA 82C686A/B South Bridge"


USB works correctly and it detects my Logitec optical mouse. Choose "UHCI support".
Add in your /etc/modules.conf

    alias usb-controller usb-uhci


You need to enable the SCSI-emulation in the kernel and to pass the "hdc=ide-scsi" directive to the kernel at bootstrap.
To do so edit your lilo.conf and add:



It is a Synaptics PS/2 TouchPad. Choose "PS/2 mouse".


The Conexant HSF modem is a cheap controllerless and DSP-less thing; however, the CPU is fast enough to make it work with no noticeable decrease in interactivity.
It is supported under Linux using proprietary (binary-only) drivers available from Marc Boucher's site.


Framebuffer is working correctly.
You have to select the support for the "VESA VGA graphics console" because the S3 Savage doesn't have specific support.
To enable the graphical penguin at bootstrap you have to pass the vga=xxx to the kernel (edit the lilo.conf to do so).
The supported value for the vga parameter are:

    resolution    vga value
    800x600         771
    1024x768        791

look at /usr/src/linux/Documentation/fb/vesafb.txt for more values.


The video chipset is a S3 Savage Twister K. While this chipset is supported by XFree86 since version 4.1.0, it is not (yet) detected automatically. Manually configuring XFree86 for any Savage chip should give you a working XF86Config. Make sure that the Device section of your XF86Config looks as follows: 

    Section "Device"
        Identifier "S3 Savage Twister K"  # identifier doesn't care
        Driver "savage"
        BoardName "Unknown"
        Option "VideoRAM" "16384"
        # Option "no_accel"        # You may enable this if there are timeouts when starting X
        # Option "xaa_benchmark"

To get both touch pad and USB mouse work under X take a look at this section:

    Section "ServerLayout"
       Identifier     "XFree86 Configured"
       Screen      0  "Screen0" 0 0
       InputDevice    "Mouse0" "CorePointer"
       InputDevice    "Mouse1" "Alwayscore"
       InputDevice    "Keyboard0" "CoreKeyboard"

    Section "InputDevice"
       Identifier  "Keyboard0"
       Driver      "keyboard"
       Option      "XkbLayout" "us"

    Section "InputDevice"
       Identifier  "Mouse1"
       Driver      "mouse"
       Option       "Protocol" "PS/2"
       Option       "Device" "/dev/psaux"
       Option       "Emulate3Buttons"

Download the full XF86Config

The information contained in this document is offered in good faith, but with no guarantee of any kind.

Many information on this page are taken from Juliusz Chroboczek page


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