Re: [jornada] Re: Kernel source? (Power managememt for HP Jornada 720)

Hello,

I wrote:

> I got this working for linux-2.4.18-rmk2-hh2 (without power
> management) - see my previous email. However for the current kernel
> (with power management) I get the following:
>
> [...]
> hda: 256MB CHH, ATA DISK drive
> ide0 at 0xc2820000-0xc2820007,0xc282000e on irq 115
> hda: 500640 sectors (256 MB) w/16KiB Cache, CHS=1043/15/32
> Partition check:
> /dev/ide/host0/bus0/target0/lun0:hda: lost interrupt
> hda: lost interrupt
> hda: lost interrupt
> [...]

I did not solve this problem, but I gave this kernel another try
with busybox and a pure serial console. It boots (and hangs), but
there does not seem to be any power management. At least pressing
the "power" key does not have any effect.

I will investigate further.

Any help how to stop the CF "hard disk" to lose its interrupts is
still welcome.

    Peter

PS: Since software power management seems to be out of range, I am
    considering a hardware hack: Maybe it makes sense to open the
    case and to introduce a hardware switch for the screen backlight
    which will hopefully increase battery lifetime to something that
    allows for some mobility ...

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