[Fwd: xorg Digest, Vol 36, Issue 11]

Regina regina.apel at gmx.de
Thu Jul 3 02:38:41 PDT 2008



-------- Original-Nachricht --------
Betreff: 	xorg Digest, Vol 36, Issue 11
Datum: 	Wed, 02 Jul 2008 04:19:56 -0700
Von: 	xorg-request at lists.freedesktop.org
Antwort an: 	xorg at lists.freedesktop.org
An: 	xorg at lists.freedesktop.org



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Today's Topics:

   1. Re: Constant DPI regardless of resolution (Nicolas Mailhot)
   2. Re: Constant DPI regardless of resolution (Nicolas Mailhot)
   3. Re: Constant DPI regardless of resolution (Nicolas Mailhot)
   4. Remapping Ctrl-Alt-Backspace? (Johannes Truschnigg)
   5. Re: Question about synaptics driver (Florian Echtler)
   6. Re: Constant DPI regardless of resolution (Nikos Chantziaras)
   7. Re: synaptics touchpad. reconnect not supported ( Nicol? Chieffo )
   8. Re: Remapping Ctrl-Alt-Backspace? (Joerg Sonnenberger)
   9. Re: Remapping Ctrl-Alt-Backspace? (Simon Thum)
  10. Re: Patch to not fork/exec xkbcomp on X Server initialization
      (Daniel Stone)
  11. Re: synaptics touchpad. reconnect not supported ( Nicol? Chieffo )


----------------------------------------------------------------------

Message: 1
Date: Wed, 2 Jul 2008 09:53:32 +0200 (CEST)
From: "Nicolas Mailhot" <nicolas.mailhot at laposte.net>
Subject: Re: Constant DPI regardless of resolution
To: "Nikos Chantziaras" <realnc at arcor.de>
Cc: xorg at freedesktop.org
Message-ID:
	<9135.192.54.193.59.1214985212.squirrel at rousalka.dyndns.org>
Content-Type: text/plain;charset=utf-8


Le Mar 1 juillet 2008 21:47, Nikos Chantziaras a ?crit :

> I'm not really sure who is responsible for fixing it.  A fixed DPI
> means
> that the physical screen dimensions are not constant.  Currently the X
> server assumes those dimensions are constant.  With good reason; there
> aren't any monitors out there made of gum (yet?)

In the case of a remote desktop or a VM the virtual screen is likely
to be made of gum and you do want to change its virtual size
dynamically to have a 1:1 relationship between virtual and actual
pixels.

> The only thorough way of fixing it IMO is a setting in the X server
> that
> basically says "trust the user; don't be smart in calculating DPI;
> simply trust what the user said and keep DPI constant no matter what."

This is exactly what won't work in a VM/hotplug/whatever context. What
the user said basically assumes a fixed dpi and/or physical size,
which is not the reality. You absolutely do *not* want to trust the
user and have the system adapt auto-dynamically to changes.


-- 
Nicolas Mailhot


------------------------------

Message: 2
Date: Wed, 2 Jul 2008 09:56:41 +0200 (CEST)
From: "Nicolas Mailhot" <nicolas.mailhot at laposte.net>
Subject: Re: Constant DPI regardless of resolution
To: "Steven J Newbury" <steve at snewbury.org.uk>
Cc: Nikos Chantziaras <realnc at arcor.de>, xorg at freedesktop.org
Message-ID:
	<19564.192.54.193.59.1214985401.squirrel at rousalka.dyndns.org>
Content-Type: text/plain;charset=utf-8


Le Mar 1 juillet 2008 22:41, Steven J Newbury a ?crit :
>  This exibits the same behaviour as Nikos reported, execpt
> that GNOME seems to ignore runtime changes to the DPI (that would be a
> GNOME bug).

That's a direct consequence of past GNOME everything-is-96-dpi
mentality. When you assume the DPI is fixed (or that it's in a config
setting no one changes and is initially set at 96) there's no need to
handle or test the changing dpi case.

-- 
Nicolas Mailhot


------------------------------

Message: 3
Date: Wed, 2 Jul 2008 10:00:49 +0200 (CEST)
From: "Nicolas Mailhot" <nicolas.mailhot at laposte.net>
Subject: Re: Constant DPI regardless of resolution
To: "Nikos Chantziaras" <realnc at arcor.de>
Cc: xorg at freedesktop.org
Message-ID:
	<33327.192.54.193.59.1214985649.squirrel at rousalka.dyndns.org>
Content-Type: text/plain;charset=utf-8


Le Mer 2 juillet 2008 00:07, Nikos Chantziaras a ?crit :
> Nicolas Mailhot wrote:

>> I'd expect wmware to decalre a new physical size automatically when
>> that
>> happens (since that's its actual behaviour)
>
> This doesn't solve the issue when not using vmware.

Sure, it's a vm-specific behaviour (virtual screen which physical
dimensions can vary unlike real-world-screens) so it can only be fixed
in the vm stack.

> I fix in X's configuration solves both cases.

No it doesn't. Don't conflate solutions to different problems in a
single mechanism. That thinking is a large part why we have the
current mess. Correct solution to different problems is rarely the
same.

X configuration is intrinsicaly static when use cases contextes are
increasingly dynamic.

-- 
Nicolas Mailhot


------------------------------

Message: 4
Date: Wed, 2 Jul 2008 10:20:33 +0200
From: Johannes Truschnigg <johannes.truschnigg at gmx.at>
Subject: Remapping Ctrl-Alt-Backspace?
To: xorg <xorg at lists.freedesktop.org>
Message-ID: <200807021020.33816.johannes.truschnigg at gmx.at>
Content-Type: text/plain;  charset="utf-8"

Hello list,

I as wondering if there is a way to conveniently (as in "don't have to mess 
around with the source") remap the three-finger-salute to kill the X-server. 
We got some kind of 24/7 public viewing-only terminal here whose screen is 
turned off every other week or so, and it sometimes does not come up again 
properly without restarting X (driver is "nvidia", and we haven't got the 
time to look into the issue any deeper) - however, the people around that 
terminal with access to the keyboard are confused by having to hit those 
three keys in parallel, which is why I would like to remap the killswitch to 
some other, single key (like F12 or something).

Thanks in advance for any tips and comments!
-- 
with best regards:
- Johannes Truschnigg ( johannes.truschnigg at gmx.at )

www: http://johannes.truschnigg.info/
phone: +43 650 2 133337
jabber: johannes.truschnigg at gmail.com

Please do not bother me with HTML-eMail or attachments. Thank you.


------------------------------

Message: 5
Date: Wed, 02 Jul 2008 11:26:46 +0200
From: Florian Echtler <floe at butterbrot.org>
Subject: Re: Question about synaptics driver
To: Paul Vojta <vojta at Math.Berkeley.EDU>
Cc: xorg <xorg at lists.freedesktop.org>
Message-ID: <1214990806.6428.2.camel at pancake>
Content-Type: text/plain

>> use, e.g., "synclient -m 100" to verify this. However, when I place
>> a second finger on the pad, the f value goes up by one, while the
>> coordinate stays the same. In fact, I always get the back the
>> coordinates from the last finger.
> Not that I know of.  It seems that your touchpad is just "trying to be
> smart", so that it avoids having the mouse jump when the second finger
> touches down.
Yes, I know - however, it is exactly that jump which I am trying to detect.
I vaguely remember something about all advanced features being disabled 
when you access the touchpad via standard PS/2 protocol. What would I have 
to do to try that? Just replace "synaptics" with "mouse" in my xorg.conf?

Yours, Florian
-- 
"_Nothing_ brightens up my morning. Coffee simply provides a shade of
grey just above the pitch-black of the infinite depths of the _abyss_."




------------------------------

Message: 6
Date: Wed, 02 Jul 2008 12:32:04 +0300
From: Nikos Chantziaras <realnc at arcor.de>
Subject: Re: Constant DPI regardless of resolution
To: xorg at freedesktop.org
Message-ID: <g4fhuo$f42$1 at ger.gmane.org>
Content-Type: text/plain; charset=UTF-8; format=flowed

Nicolas Mailhot wrote:
> Le Mer 2 juillet 2008 00:07, Nikos Chantziaras a ?crit :
>> Nicolas Mailhot wrote:
> 
>>> I'd expect wmware to decalre a new physical size automatically when
>>> that
>>> happens (since that's its actual behaviour)
>> This doesn't solve the issue when not using vmware.
> 
> Sure, it's a vm-specific behaviour (virtual screen which physical
> dimensions can vary unlike real-world-screens) so it can only be fixed
> in the vm stack.
> 
>> I fix in X's configuration solves both cases.
> 
> No it doesn't. Don't conflate solutions to different problems in a
> single mechanism. That thinking is a large part why we have the
> current mess. Correct solution to different problems is rarely the
> same.
> 
> X configuration is intrinsicaly static when use cases contextes are
> increasingly dynamic.

The "mess" you're referring to is the reason everything actually works. 
  I don't expect to ever see a working solution to my problem outside of 
X.  xrandr doesn't work, xf86-vmware doesn't work either.



------------------------------

Message: 7
Date: Wed, 2 Jul 2008 12:21:06 +0200
From: " Nicol? Chieffo " <84yelo3 at gmail.com>
Subject: Re: synaptics touchpad. reconnect not supported
To: "Peter Hutterer" <peter.hutterer at who-t.net>
Cc: xorg at lists.freedesktop.org
Message-ID:
	<641322f90807020321i2b277695j867b0c1c82ba4881 at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1

I've understood. I am now applying the .fdi file.
Is it possible to make a .fdi file generic for every distribution,
which will not conflict with other touchpad/mouse configurations?


------------------------------

Message: 8
Date: Wed, 2 Jul 2008 12:30:00 +0200
From: Joerg Sonnenberger <joerg at britannica.bec.de>
Subject: Re: Remapping Ctrl-Alt-Backspace?
To: xorg at lists.freedesktop.org
Message-ID: <20080702103000.GA860 at britannica.bec.de>
Content-Type: text/plain; charset=us-ascii

On Wed, Jul 02, 2008 at 10:20:33AM +0200, Johannes Truschnigg wrote:
> I as wondering if there is a way to conveniently (as in "don't have to mess 
> around with the source") remap the three-finger-salute to kill the X-server. 

Do you really want to remap it? Why not just set Option "DontZap" True?

Joerg


------------------------------

Message: 9
Date: Wed, 02 Jul 2008 13:03:58 +0200
From: Simon Thum <simon.thum at gmx.de>
Subject: Re: Remapping Ctrl-Alt-Backspace?
To: Joerg Sonnenberger <joerg at britannica.bec.de>
Cc: xorg at lists.freedesktop.org
Message-ID: <486B609E.6010605 at gmx.de>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Joerg Sonnenberger wrote:
> On Wed, Jul 02, 2008 at 10:20:33AM +0200, Johannes Truschnigg wrote:
>> I as wondering if there is a way to conveniently (as in "don't have to mess 
>> around with the source") remap the three-finger-salute to kill the X-server. 
> 
> Do you really want to remap it? Why not just set Option "DontZap" True?
If I got it right he wanted to make it *easier* to restart... Though 
your suggestion is probaby the better idea for a public place.


------------------------------

Message: 10
Date: Wed, 2 Jul 2008 14:10:43 +0300
From: Daniel Stone <daniel at fooishbar.org>
Subject: Re: Patch to not fork/exec xkbcomp on X Server initialization
To: Peter Hutterer <peter.hutterer at who-t.net>
Cc: xorg at lists.freedesktop.org
Message-ID: <20080702111043.GA6155 at fooishbar.org>
Content-Type: text/plain; charset="us-ascii"

On Wed, Jul 02, 2008 at 01:31:48PM +0930, Peter Hutterer wrote:
> [Haven't looked at the actual patch yet]
> 
> On Wed, Jul 02, 2008 at 02:40:54AM +0300, Daniel Stone wrote:
> > Yes, I was expecting around 50% or so.  If this is tested and working
> > fine for you, I'm perfectly happy for you to recommend this to people
> > who need it, but I'm definitely not merging it.  In theory, xkbcomp
> > should just be xkbcomp(), which hands us back the XkbDescRec it
> > generates while parsing anyway.
> 
> A rewrite may be a better option, but is there any reason we can't put
> paulo's patch into master for the time being? Worse comes to worst it's
> reverted (or removed) when the rewrite happens. Trying to debug xkb startup is
> a pain right now, and removing the fork may just convince my gdb not to die
> the death of a thousand sins.

The thing is that this still forks, so you're still screwed on startup,
and you still have the XKM mess.  All it does is cache the output
somewhere.

> and the thing with rewrites is that they tend to always take longer than
> expected, so if there's an interim solution I'm not the one to complain.

Yeah, I'm still happy to try the smashing-xkbcomp-in-its-current-form-in
thing again.

Cheers,
Daniel
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Message: 11
Date: Wed, 2 Jul 2008 13:19:47 +0200
From: " Nicol? Chieffo " <84yelo3 at gmail.com>
Subject: Re: synaptics touchpad. reconnect not supported
To: "Peter Hutterer" <peter.hutterer at who-t.net>
Cc: xorg at lists.freedesktop.org
Message-ID:
	<641322f90807020419o20bb46b9u18c08cd257a4c35e at mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"

Maybe I need some help, I'm not so expert in this stuff... I edited
the fdi file and I copied it to
/usr/share/hal/fdi/policy/20thirdparty/
then I rebooted but the problem persists. Do I have to add some
xorg.conf tweak? or the udev rule too?
Thank you
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