Linux users of Sony Z1 series

[Brouard Nicolas <>]

Hi,

Can you confirm that S3 is working (echo 3 >/proc/acpi/sleep), fully
working, without the need of video_post? Do you think that this facility
is linked with swsusp2 patches (which is supposed to be for suspending
to disk)?

Nicolas
Le mercredi 10 novembre 2004 à 14:20 +0100, Ionut Georgescu a écrit :
> Hello,
> 
> just wanted to clarify a few details:
> 
> * I tested both S3 and S4 and they work. I used swsusp2 for S4 because
>   some time ago it seemed to be the only actively developed one. And it
>   is also very fast: it suspends in 17 and resumes in 20 seconds.  You
>   need however to enable the nVidiaHack in hibernate.conf to fix the bad
>   interaction with the touchpad, as Nicolas mentioned.
> 
> * the kernel I used is
>       -# vanilla 2.6.9
>       -# acpi-20040816-2.6.9.diff.gz
>       -# software-suspend-2.1-for-2.6.9.tar.bz2 and
>       -# alps.patch for 2.6.9 from synaptics-0.13.6
>   You also need to disable framebuffer support.
> 
> All patches apply cleanly. If, by any chance, swsusp2 doesn't compile
> (it sometimes used to in the past), it is a trivial fix. Unfortunately I
> can't remember what I did :-)
> 
> I use debian unstable and the latest versions of synaptics (0.13.6) and
> ipw2100 (0.60) are already available.
> 
> Personally I commited my self a while ago to using kernel.org kernels.
> Vendor kernels are sometimes impossible to patch.
> 
> Greetings,
> Ionut
> 
> On Wed, Nov 10, 2004 at 02:01:39PM +0100, Brouard Nicolas wrote:
> > Thank you for all these informations from Ionut but also from Olaf and
> > latest from Richard.
> > 
> > It seems to me that we are currently mostly discussing basic Linux
> > questions and not really which best distro to use with a Sony Z1 even if
> > our goal, at least mine, is to have distros having solved the Sony
> > hardware questions and competing with other features.
> > 
> > >From what I read recently, I believe that we have no chance to have S3
> > working with a 2.6.8 kernel. So the current solution of Mandrake with
> > its 2.6.8 kernel is out (it is not out if you need only S4 with a
> > patched kernel given on my sony web page). I am using other proprietary
> > softwares like Win4lin and I can't be operational until I get the
> > corresponding patches from the recent kernel that is the reason why I
> > need a widely used kernel.
> > 
> > So lets take Fedora Core 3 because it has a 2.6.9 kernel (I haven't
> > tested it). It will differ from vanilla kernel at least because some of
> > the ACPI patch might be included and
> > the latest acpi-20040816-2.6.9.diff.gz will not apply. But I am not sure
> > that any after 2.6.9 ACPI patch  is necessary for the Sony and I am
> > pretty sure that they don't include the video_post and kernel patch
> > which are too recent I suppose. 
> > 
> > But I am pretty sure that we need the video_post because I suspect that
> > Ionut tested succesfully S4 using swsusp2 instead (but I can be wrong).
> > And swsusp2 concerns suspend to disk (suspend to RAM has another name I
> > think):
> > "Software suspend is the ability to take a snapshot of the state of a
> > computer's memory and save it to disk, and restore that image later."
> > 
> > Swusp1 also concerns suspend to disk.
> > 
> > Swsusp1 is the default kernel way. You need to add a resume=/dev/hdaN
> > in your lilo or grub in order to copy your memory to the swap partition 
> > of your disk and your laptop is pwered off and doesn't consume battery.
> > 
> > Swsusp2 is more experimental and you need a resume2=swap:/dev/hda8 in
> > your lilo in order to resume.
> > 
> > Swsusp2 uses a special command in order to activate the suspension
> > with an echo >/proc/swsusp/activate
> > This command is included in a
> > file /etc/hibernate/scriptlets.d/swsusp2-15 
> > from the special swsusp2 suspend-script package.
> > 
> > Swsusp1 uses the standard S4/ACPI command echo 4 > /proc/acpi/sleep
> > (Even if your kernel is compiled with swsusp2 you can make S4/ACPI
> > suspending to disk). In recent kernels, the standard way of suspending 
> > is 
> >  echo  shutdown >/sys/power/disk; echo  disk > /sys/power/state
> > But both commands are working (or not working).
> > 
> > The standard command S3/ACPI for suspending to RAM is 
> >    echo 3 >/proc/acpi/sleep
> > Then your laptop will not completely halt but the button will blink and
> > your memory is still alive, thus consuming some battery. If you hold the
> > button you will resume. If you hold the button for a long time, you will
> > halt and loose all what was in your memory.
> > 
> > With old laptop is was easier because the suspension was done by the
> > BIOS not by software.
> > 
> > >From my experience, swsusp2 doesn't work  as well as swsusp1 (ACPI/S4)
> > because evdev and psmouse did not resume correctly and have to be
> > unloaded before suspending. Some code is missing (see my WEB page and
> > a discussion between Nigel and Dmitry). Thus the alps, even patched,
> > doesn't resume and you are back to a ps2 mouse with wrong parameters or
> > something like that.
> > 
> > Also you have to take the latest Alps patch. I think that alps.patch
> > from synaptics-0.13.6 is ok. Ok means that you can use
> >     Option "Protocol" "auto-dev"
> > in your xorg.conf
> > and this means that you don't need to specify a fixed 
> >     Option Device/dev/input/event1 .
> > It is particularly interesting after resuming if you have introduced
> > your laptop into a dock station and/or added a psmouse because the event
> > number attached to the touchpad may have changed and corresponds now to
> > something else than 1 (in this example).
> > 
> > I don't know why this alps patch is still not filed into a standard
> > kernel. In fact I know: it is because the tapping doesn't work
> > completely satisfactorily.
> > 
> > Moving to xorg seems mandatory now. You can get my experimental
> > xorg.conf on my sony site.
> > 
> > S3 or suspend to RAM is working with a 2.6.9 vanilla kernel by doing
> > echo 3>/proc/acpi/sleep 
> > if you have include the vga_post kernel patch in your kernel and
> > vga_post at the correct place. Apparently, on Sony Z1, you won't get
> > access to the console but on X (no framebuffer). Also usb devices do not
> > resume correctly if USB is compile into the kernel. If compiled into
> > module it has been reporting at least once. I haven't tried 2.6.9 .
> > 
> > In addition, if you are interested in suspending to disk, you might be
> > interested by latest patches (2.6.10 but which are working against 2.6.8
> > and 2.6.9 tooà concerning sonypi which will resume well (either with
> > swsusp2 [I guess] and swsusp1.
> > 
> > In summary, currently on 2.6.9 (vanilla or Fedora Core 3 I presume) you
> > need
> >  - latest alps patch
> >  - latest sonypi patch
> >  - latest vga_post kernel patch
> > 
> > I am not sure that you need latest ACPI patches after 2.6.9.
> > Your kernel will be able to suspend to disk (with standard swsusp1) and
> > to ram with best conditions.
> > 
> > But you also need, the following software: vga_post, xorg.conf with
> > parameters specific to alps (you still have "load synaptics"), and a
> > script to suspend to disk (for clock and some usb modules).
> > 
> > In order to make other hardware working, you probably need hsfmodem (any
> > alternative to this proprietary software?) kernel patch. Win4lin kernel
> > patch might also be interesting if your are using it.
> > 
> > Concerning WIFI I haven't tested ip2200 but there has been some reports
> > on the list (this is mostly software I think).
> > 
> > That's it.
> > 
> > Please report errors and mistakes.
> > 
> > Nicolas 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > Le mardi 09 novembre 2004 à 17:03 +0100, Ionut Georgescu a écrit :
> > > Hello,
> > > 
> > > just tried it twice so it can't be wrong :-)
> > > 
> > > Due to a mistake in the suspend script, I just discovered that S3 works
> > > even without video_post. The console is unusable but frankly I don't
> > > care. In all the situations where I needed S3 I was working under X and
> > > X works marvelously. Even the ALPS touchpad [1].
> > > 
> > > Now only the Fn keys need to be implemented the right way to have this
> > > computer perfectly supported by linux!
> > > 
> > > Ingredients:
> > > * linux-2.6.9
> > > 
> > > So long and happy Z1-linuxing :-)
> > > Ionut
> > > 
> > > [1] With swsusp2 the touchpad is much slower after resume, as if it lost
> > > its resolution and/or acceleration settings. It gets better if you
> > > restart X, but that's not an option.
> > 
> > -- 
> > Brouard Nicolas 
> > <>
> > 
> 
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> -- 
-- 
Brouard Nicolas 
<>
-- 
Brouard Nicolas 
<>