[Peripherals] projector resolution
jhsu at zoltantech.com
Wed Jan 7 22:27:33 EST 2009
It is nice to hear from you again after our last email exchange, quite a
I'll work on the MCT side to push for more engineering support. Stay
tuned... But in order to give MCT some incentive, can anyone from inside the
OLPC foundation get me potential business aspect for the USB-to-VGA adapter?
----- Original Message -----
From: "Samir Saidani" <saidani at tuxfamily.org>
To: "Jonathan" <jhsu at zoltantech.com>
Cc: <richard at laptop.org>; "Joshua N Pritikin" <jpritikin at pobox.com>;
<peripherals at lists.laptop.org>; <saidani at squeakfr.org>; "Joshua Seal"
<josh at laptop.org>
Sent: Thursday, January 08, 2009 4:31 AM
Subject: Re: [Peripherals] projector resolution
> Hi there,
> Unfortunately the driver gives by MCT does not compile very well,
> and even if this driver would compile, my understanding is that
> the driver provided works only into the framebuffer mode. I tried
> to get Thomas Winischhofer involved since Thomas seems to be the
> linux sisusb driver expert, but didn't have any answers. I didn't
> have skills and energy to develop a whole driver for X11, so if
> we want something working, maybe could we make a call for
> developper in some official OLPC website... I already tried in
> the olpc mailing-list, but with no answer at all.
> Another possibility is to get MCT much more involved, at least to
> the point to get the current driver they provided working. I've
> send a mail to the guy who has given us the driver, to get more
> information on the computer environment context (operating
> system, version of the linux kernel, version of the X11 server)
> used to compile the driver provided, with no answer at all. I
> asked also for tech documentation for the chipsed used, with no
> answer. So the lack of cooperation makes the development of the
> driver definetely difficult... Maybe someone which is inside the
> foundation could ask himself, the fact to be from the foundation
> would sound more official to people from MCT, and could get
> things done, than someone which is simply a volunteer.
> * Jonathan <jhsu at zoltantech.com> [2009-01-07 02:41]:
>> Hi Joshua,
>> I was working with Samir on UVT-100, which I think is using the same MCT
>> chip as yours. You may already have looked at these pages,
>> http://wiki.laptop.org/go/User:Samir#USB2VGA, and
>> I guess Samir hasn't have further luck or time to finish the project. I'm
>> also copying Samir and Joshua Seal on this list, hopefully they can
>> provide some insight of the current status.
>> We can mass produce the USB-to-VGA adapters with cheaper price from
>> ZoltanTech like ZoWii Ethernet adapters, if someone can get the driver
>> ----- Original Message ----- From: "Richard A. Smith"
>> <richard at laptop.org>
>> To: "Joshua N Pritikin" <jpritikin at pobox.com>
>> Cc: <peripherals at lists.laptop.org>
>> Sent: Wednesday, January 07, 2009 6:56 AM
>> Subject: Re: [Peripherals] projector resolution
>>> Joshua N Pritikin wrote:
>>>>> The short answer then is nobody knows. You will have runs some tests
>>>> There have got to be people in the field who know. The web page
>>>> suggests that some people have tried it.
>>> Hopefully you can find those people and get the info from them.
>>>>> If I were going to test this then I think I would run a VNC server on
>>>>> the XO and then play with different settings on client and see how it
>>> You might also be able to use a normal desktop running in 1200x900 and a
>>> full screen qemu image to get sugar then VNC that over to a client setup
>>> to display 800x600. VNC (or tightVNC) is going to give you a lot of
>>> control over how aggressive you want your scaling to be.
>>> Another option you can do is to take snapshots of the screen on the XO
>>> and then play with scaling them. Alt-F1 will take a screen snapshot and
>>> put a 1200x900 PNG into the journal. You can take a bunch of snapshots
>>> of various screens and then run those png files though all types of
>>> scaling and see what looks good and what does not.
>>> Richard Smith <richard at laptop.org>
>>> One Laptop Per Child
>>> Peripherals mailing list
>>> Peripherals at lists.laptop.org
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