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----- Original Message -----
From: "Derek Broughton" <derek_broughton@hotmail.com>
To: <debian-laptop@lists.debian.org>
Cc: "Baptiste Malguy" <baptiste@malguy.net>
Sent: Tuesday, March 05, 2002 2:54 PM
Subject: Re: Dell Inspiron 2500
> From: "Baptiste Malguy" <baptiste@malguy.net>
> >
> > 1) My Inspiron 2500:
> > --------------------
> >
> > I have to say that even if now it works pretty well with most of the
> > functionnalities ready, it has not always been true.
> > Many trouble with ALSA, X, APM, ACPI, PCMCIA ...
>
> I have no trouble with X. ALSA was simple once I finally realized that
the
> .deb package wasn't creating a required link from /etc/modutils/alsa ->
> /etc/alsa/modutil/0.9. APM is definitely toast. PCMCIA works fine for me,
> but that seems fairly dependent on the cards you're using.
>
> > My advices:
> >
> > About ACPI: just forget 2.2.x kernels since it is now reliable (>=
2.4.16
>
> I agree.
>
> > But there is still one main problem: it seems ACPI really hates to share
> > its IRQ (9) with any other devices. Unfortunately, the PCI management
> > system also gives this IRQ to the PCMCIA/Cardbus driver :(
> > Which makes the machine hanging. Not always crashing, but most of the
> > time, it does crash :(
>
> I'm not having this problem. I'm getting the kernel messages:
> IRQ routing conflict for 01:03.n, have irq 9, want irq 5
> but everything is working. You are supposed to be able to turn off the
ACPI
> handling of irq routing with a kernel parameter (I think 'pci=noacpi') at
> boot time, but I haven't tried it. It might make a difference for you.
> I'm really just getting into ACPI, and haven't tried the latest patch.
>
> > So I traced a little, read the doc to find a way to say the kernel to
> > provide it another IRQ as Windows does (it gives IRQ 5 to the PCMCIA
> > driver). Nothing available it seems. So I wrote a very dirty patch, but
> > which makes me happy. That's the first time I "read" some kernel source,
> > so please don't shout on me :):
> > http://babou.org/ls/sources/patch-2.4.16-inspiron2500
> > Works at least for 2.4.16 and 2.4.17
> > You have to say to apply the patch via make config/menuconfig/...
>
> > About the sound: the OSS driver is obviously not efficient at all,
>
> probably. I don't require sound on my laptop, so I'm happy enough that I
> got OSS sound last week.
>
> > About the extra keys: I use the package hotkeys. It can run some
> > commands, and do some basis stuff. I personally use it to set the
> > sound level, play/stop/prev/next with xmms
>
> Thanks. I don't know that I'll use it the way you do, but it's handy.
>
> > To use the switch off button, as a shutdown, I use the package acpid.
> > It watchs /proc/acpi/event to discover what happends with ACPI,
> > including the suspend and power buttons. So XDM is enough to power off
>
> Where is the 'suspend' on a inspiron 2500? The blue suspend key (Fn-Esc)
> doesn't appear to send any signal that's caught by ACPI (but I'm just
using
> the ACPI support in the kernel, not the latest patch - would the patch
> help?).
> >
> > About the touchpad: my /etc/gpm.conf:
> > device=/dev/psaux
> > responsiveness=
> > repeat_type=raw
> > type=ps2
> > append=""
> > sample_rate=
> >
> > and XF86Config-4:
> > ...
> > Section "InputDevice"
> > Identifier "Touchpad"
> > Driver "mouse"
> > Option "CorePointer"
> > Option "Device" "/dev/gpmdata"
> > Option "Protocol" "PS/2"
> > ...
> >
> > I prefer to say it as I personaly spent sometimes on it.
> >
> > Also, I experienced NO problem about 16bit mode under XFree86.
> > If you want my complete XF86Config-4 to test, just ask me.
> >
> > For additionnal information about it (french/english):
> >
> > http://babou.org/equipment/lebanon.fr.html
> > http://babou.org/equipment/lebanon.en.html
> >
> > 2) My questions:
> > ----------------
> >
> > About this famous suspend-to-disk partition, actually I directly put
> > another hard disk in the laptop (from my previous one) exchanging the
> > two hard disks. So I didn't even look what were on the original disk.
> > Just formatted it for my older laptop.
>
> There is definitely no s2d partition on the i2500 as delivered. I haven't
> been able to figure out _what_ Dell does on its 8100s with RedHat - but I
> imagine we can duplicate that with enough imagination :-)
>
> > I created a IBM Thinkpad hibernation partition, FAT16/32 partitions,
> > at the beginning and the end of the disk, as primary and logical
> > partition. Nothing happened.
> >
> > However, dmesg tells me:
> > ACPI: System firmware supports S0 S1 S4 S5
> > So ! It is available, but ?
>
> First, the 'firmware' supports those sleep levels, but afaik there's no
> software behind it to actually force a suspend. In fact, on the
acpi-devel
> list in the last couple of days Pavel Machek (one of the developers) said:
> "[If you say S4 works I'll not believe you, and if you say S3 works,
> I'll be very pleasently surprised. S1 has some chance of working.]"
>
> Just like apcid runs init when you press the power button, I think we'll
> need to supply the functionality to do the suspend to disk. I haven't
> finished reading the acpi docs either...
>
> My experience was that S1 seems to work (echo 1 > /proc/acpi/sleep), but
the
> inspiron is incapable of resuming from it (the keyboard can't regain
> control). Hitting the power button does put it through an orderly
shutdown.
> S4 is ugly. I haven't checked exactly what it did, I just know it wasn't
> nice, and I couldn't power down properly :-) S5 looks like it wanted to
do
> a suspend to disk but all it really did was an abrupt power-off.
>
> If you're interested in working with me on this, I'd suggest we keep
trying
> and report back to this list and acpi-devel with our results. We seem to
be
> at a pretty similar point.
>
> > I gave a look at the suspend-to-disk patch, because I experienced how
> > Windows 2000 does suspend-to-disk: it actually uses its own filesystem,
> > creating a hiber....sys file. But I use ext3, and the patch does not
> > handle the corresponding kernel threads (kjournald), so it does not work
> >
> > So, here I would be very happy to get any information about it.
>
> as would I. I haven't tried it yet - in fact my next change to the kernel
> was going to be to add ext3 because a number of testers of acpi have
> enthused about the value of journaling filesystems when they're testing
> power management.
>
> > Also, I cannot switch off the display. I mean, it is always powered or I
> > have to close the laptop. xset dpms force off just does nothing.
> > Do you experience the same problem ? Does it work fine for someone else?
>
> I've just tried it. Not having a dark room, I can't be certain it really
> powered off, but it blanked the screen. I know when my screen blanks
> normally (after 15 minutes of inactivity) it does _not_ power off.
>
> > It also does not switch off on the text console.
> >
> > Last question: I saw that under windows, the touchpad driver can make
the
> > right side of the pad working as scrolling wheel. If anyone knows to do
it
> under
> > Linux with a detailed explanation (programs, conf files ...) ?
>
> I quit trying to make the TP do anything but ordinary mouse movements,
> because I found it too flakey - and I hate how it works under Windows ME -
> but if you want it to work as a wheel mouse, you'd definitely need it to
be
> an IMPS/2 not a PS/2. I guess I have it working as a wheel mouse in WinME
> but I can't figure out how to control the wheel function. It's always
> scrolling on me when I don't want it to. Perhaps if I had this
> functionality in Linux I'd get use to it, but I only use Windows for
Quicken
> :-)
>
> derek
>
>
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