Linux users of Sony Z1 series

["BROUARD Nicolas" <>]

Le mercredi 10 novembre 2004 à 14:41 +0100, Ionut Georgescu a écrit :
> Hello,
> 
> well, that's interesting. I didn't think about that. But just to resume:
> * X works with or without video_post after S3
> * VGA console doesn't work at all, even with video_post, after resume
>   from S3
> 
> It would be interesting if somebody did the same experiment without the
> swsusp2 patches. it might be that they added some magic ...
No, in fact I think, according to what Venki writes on kernel bugzilla
http://bugme.osdl.org/show_bug.cgi?id=3670


------- Additional Comment #11 From Venkatesh Pallipadi 2004-11-04
10:15   
Patch to invoke vga_post from kernel

If the above vga_post utility helps you to get back the text console after S3
suspend-resume, you can use the attached patch to invoke that utility from
kernel directly (Please note the path for video_post in the patch should match
the patch where you have installed it).
The advantage being, this will make the Xwindows work after resume as well.
This still doesn't help framebuffer consoles.
---------------------------------------

Vga_post was a possible opportunity to get the console resuming well
after S3. And it doesn"t work completely with a Sony Z1. It was supposed
to help X resuming too.

But nobody, excepting you, did try if X was resuming correctly when
applying latest 
  acpi-20040816-2.6.9.diff.gz
patches to a vanilla 2.6.9 kernel on such a laptop!

And thus S3 is working under X (no framebuffer) without any other patch
or tool! Confirmation from other users is welcome...

I am sending a copy to Venki and Yi Zhu for an eventual comment. But you
should probably report to bugzilla too.

Cheers and many thanks,

Nicolas

> Unfortunately I don't have the time right now. I am just happy that it
> works.
> 
> Cheers,
> Ionut
> 
> On Wed, Nov 10, 2004 at 02:31:51PM +0100, Brouard Nicolas wrote:
> > 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 
> > <>
> > 
> 
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> 
> -- 
-- 
Brouard Nicolas 
<>