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Author Topic: Usb Vga  (Read 28653 times)

Meanie

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Usb Vga
« Reply #15 on: January 19, 2006, 09:18:08 am »
Ok, I bought that USB to VGA adaptor from Kairen and it just arrived today with my C3000
This is gonna be a fun weekend with so many new toys. I also just bought a SanDisk ConnectPlus CF Wifi card.
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Meanie

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Usb Vga
« Reply #16 on: January 21, 2006, 02:41:12 am »
Quote
Ok, I bought that USB to VGA adaptor from Kairen and it just arrived today with my C3000
This is gonna be a fun weekend with so many new toys. I also just bought a SanDisk ConnectPlus CF Wifi card.
[div align=\"right\"][a href=\"index.php?act=findpost&pid=111570\"][{POST_SNAPBACK}][/a][/div]


Just an update on my findings so far in case someone is interested.

It works as I expected. The adaptor is detected as a sisusbvga device: USB2VGA dongle

It is allocated 8 output buffers with 8MB SDR SDRAM with a bus width of 32 by the driver.
The VGA presentation application allows you to use the dongle for presentation. The app is limited to doing slideshows only. It slowly streams the data to the usb device which then buffers it and displays it to the monitor. I could even switch applications on the Zaurus while the presentation app continued to send data to the usb device and it renders it to the monitor. However, the VGA application crashes after a while
The image on the monitor remains even when rebooting the Zaurus so I guess the last image displayed is buffered by the usb dongle and the monitor is getting the cached data from it.
This proves that it is technically possible to have VGA out for the Zaurus via USB, however, the current state of the driver and application is very limited and needs more work. It is also very slow due to the slow USB bus speed implemented by the Zaurus.
I then plugged the USB dongle into one of my PCs and used it to mirror and split the display on a Win2000 system without any problems. The speed was ok there because it was using USB 2.0 High Speed instead of USB 2.0 Full Speed that the Zaurus uses.
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SL-C3000 - pdaXii13 build5.4.9 (based on pdaXrom beta3) / SL-C3100 - Sharp ROM 1.02 JP (heavily customised)
Netgear MA701 CF, SanDisk ConnectPlus CF, Socket Bluetooth CF, 4GB Kingston CF,  4GB pqi SD, 4GB ChoiceOnly SD, 2GB SanDisk SD USB Plus, 1GB SanDisk USB Plus, 1GB Transcend SD, 2GB SanDisk MicroSD with SD adaptor, Piel Frama Leather Case, GoldX 5-in-1 USB cable, USB hub, USB mouse, USB keyboard, USB ethernet, USB HDD, many other USB accessories...
(Zaurus SL-C3000 owner since March 14. 2005, Zaurus SL-C3100 owner since September 21. 2005)
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Da_Blitz

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Usb Vga
« Reply #17 on: January 22, 2006, 04:32:21 am »
Thats bizare, from what i have read the usb vga card suposidly dont work at all on usb 1.1, guess some infomation needs to be updated.

@Meanie: where did you get it from? and how much?
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Meanie

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Usb Vga
« Reply #18 on: January 22, 2006, 08:25:41 am »
Quote
Thats bizare, from what i have read the usb vga card suposidly dont work at all on usb 1.1, guess some infomation needs to be updated.

@Meanie: where did you get it from? and how much?
[div align=\"right\"][a href=\"index.php?act=findpost&pid=111890\"][{POST_SNAPBACK}][/a][/div]

my friend bought it for me and it cost 9,800 yen. now i got an expensive toy that doesnt do much until i can write a better app for it
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SL-C3000 - pdaXii13 build5.4.9 (based on pdaXrom beta3) / SL-C3100 - Sharp ROM 1.02 JP (heavily customised)
Netgear MA701 CF, SanDisk ConnectPlus CF, Socket Bluetooth CF, 4GB Kingston CF,  4GB pqi SD, 4GB ChoiceOnly SD, 2GB SanDisk SD USB Plus, 1GB SanDisk USB Plus, 1GB Transcend SD, 2GB SanDisk MicroSD with SD adaptor, Piel Frama Leather Case, GoldX 5-in-1 USB cable, USB hub, USB mouse, USB keyboard, USB ethernet, USB HDD, many other USB accessories...
(Zaurus SL-C3000 owner since March 14. 2005, Zaurus SL-C3100 owner since September 21. 2005)
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madfitz

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Usb Vga
« Reply #19 on: September 28, 2006, 05:20:54 pm »
I’ve been looking for a USB to VGA device. I found one person who claims they got it to work, but their site hasn’t been updated in forever and their site is now lacking that information:

http://zaurus.daemons.gr/menaie/

thought Google has it cached:

http://72.14.203.104/search?q=cache:139Xyv...=2&client=opera

I’ve been interested in this device, though I understand you need a powered USB Hub to run it because of power requirements. Though I’m only truly interested if it can refresh to be SOMEWHAT reasonable for typing.

I’ve seen two different types of devices, the USB and the CF type, which seems to be the best for this type of situation?
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Antikx

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Usb Vga
« Reply #20 on: September 28, 2006, 09:39:01 pm »
Talk to the person who posted right above you.
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Meanie

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Usb Vga
« Reply #21 on: October 05, 2006, 09:38:38 am »
Quote
Talk to the person who posted right above you.
[div align=\"right\"][a href=\"index.php?act=findpost&pid=142619\"][{POST_SNAPBACK}][/a][/div]

who would that be?
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SL-C3000 - pdaXii13 build5.4.9 (based on pdaXrom beta3) / SL-C3100 - Sharp ROM 1.02 JP (heavily customised)
Netgear MA701 CF, SanDisk ConnectPlus CF, Socket Bluetooth CF, 4GB Kingston CF,  4GB pqi SD, 4GB ChoiceOnly SD, 2GB SanDisk SD USB Plus, 1GB SanDisk USB Plus, 1GB Transcend SD, 2GB SanDisk MicroSD with SD adaptor, Piel Frama Leather Case, GoldX 5-in-1 USB cable, USB hub, USB mouse, USB keyboard, USB ethernet, USB HDD, many other USB accessories...
(Zaurus SL-C3000 owner since March 14. 2005, Zaurus SL-C3100 owner since September 21. 2005)
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madfitz

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Usb Vga
« Reply #22 on: October 05, 2006, 03:05:48 pm »
Meanie your 9,800 yen toy was the USB to VGA device?

I was also wondering if anyone has seen this little “handy” device

http://www.chait.net/index.php?p=572
or this
http://www.gizmodo.com/gadgets/top/micromi...tics-154041.php


Certainly a very nice gadget for the coffee shop  or real work.

Has anyone been successful in getting the USB to VGA adaptor to work reliably (not necessarily for any full motion video, but maybe for typing/presentations/photo-slideshows?)
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Pazu_Z

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Usb Vga
« Reply #23 on: October 26, 2006, 03:27:40 am »
Quote
Meanie your 9,800 yen toy was the USB to VGA device?

I was also wondering if anyone has seen this little “handy” device

http://www.chait.net/index.php?p=572
or this
http://www.gizmodo.com/gadgets/top/micromi...tics-154041.php
Has anyone been successful in getting the USB to VGA adaptor to work reliably (not necessarily for any full motion video, but maybe for typing/presentations/photo-slideshows?)
[div align=\"right\"][a href=\"index.php?act=findpost&pid=143248\"][{POST_SNAPBACK}][/a][/div]
Yes. I connected my C3200 running vga-presentation 1.0.1 and using a Kairen USB 2.0 VGA Adapter to a standard data projector, and it worked flawlessly. It takes about a second for the screen to display, but once displayed, it's really working and looks very nice in various resolutions. Technically, everything works just fine.

The only thing is that vga-presentation in its current state only supports automatized slide shows. It's not possible to control them manually, thus making it virtually impossible to use it for presentations. What we need is

-- Manual control for browsing slides (using the arrow keys) (that's a BASIC request!!)
-- Zoom in/out functions (would be nice).

Another option would be to modify photostorage or some other soft that can manipulate images to support output via USB. Maybe that's even simpler ...

Anyway, it's definitely worthwhile giving it a try -- perhaps Meanie could do it? (At least, please update vga-presentation to include manual browsing.)
« Last Edit: October 26, 2006, 03:29:34 am by Pazu_Z »
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daniel3000

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Usb Vga
« Reply #24 on: October 26, 2006, 11:55:51 am »
What about mirroring the actual screen contents with that USB device?

daniel
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Pazu_Z

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« Reply #25 on: October 27, 2006, 08:48:46 am »
I should have read the Japanese homepage more carefully from which I had taken the USB-VGA presentation soft. Actually, some of the features I requested are already implemented. So here's an overview of its functions:

-- After choosing your pics (BMP, JPG, PNG), use the left and right arrow keys to rotate them if necessary.
-- For manual output to the VGA adapter, push the space key.
-- For the automatic slide show, there is a special tab.

The author adds that you should remove the USB host cable only after shutting down Vga presentation.

He thinks it may be possible to doublebuffer VRAM to prepare data for the next slide before it is sent to the adapter, making it possible to create effects like wipe and resolve. I have no clue whether that can be done?

Anyway, the source files are here for the presenter and for the driver.
« Last Edit: October 27, 2006, 08:50:44 am by Pazu_Z »
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daniel3000

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Usb Vga
« Reply #26 on: October 27, 2006, 09:53:22 am »
Quote
I should have read the Japanese homepage more carefully from which I had taken the USB-VGA presentation soft. Actually, some of the features I requested are already implemented. So here's an overview of its functions:

-- After choosing your pics (BMP, JPG, PNG), use the left and right arrow keys to rotate them if necessary.
-- For manual output to the VGA adapter, push the space key.
-- For the automatic slide show, there is a special tab.

The author adds that you should remove the USB host cable only after shutting down Vga presentation.

He thinks it may be possible to doublebuffer VRAM to prepare data for the next slide before it is sent to the adapter, making it possible to create effects like wipe and resolve. I have no clue whether that can be done?

Anyway, the source files are here for the presenter and for the driver.
[div align=\"right\"][a href=\"index.php?act=findpost&pid=144934\"][{POST_SNAPBACK}][/a][/div]

hm - will this driver and software work under pdaXrom? Does the driver need kernel sources in order to be compiled (is it a kernel module or a user space program)?

And: would it be possible to buy an entire batch of these devices? Maybe 10 pcs.?

daniel
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Pazu_Z

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Usb Vga
« Reply #27 on: October 27, 2006, 11:05:48 am »
Quote
hm - will this driver and software work under pdaXrom? Does the driver need kernel sources in order to be compiled (is it a kernel module or a user space program)?

And: would it be possible to buy an entire batch of these devices? Maybe 10 pcs.?

daniel
[div align=\"right\"][{POST_SNAPBACK}][/a][/div]
Actually, the Japanese author used this [a href=\"http://www.winischhofer.at/linuxsisusbvga.shtml]Austrian site[/url] in English for compiling the driver. As far as I can see, it's a kernel module. On the author's homepage you can see some technical details in the readers' comment section; just scroll down the page. Maybe someone can figure out what these data mean.

As for the second question: I ordered my device via Amazon Japan, and I have no doubt that there are still many more available. You may check it yourself here, but it's in Japanese, of course.
By the way: The original idea of this device is to have output from one source on up to three screens at a time, so they have three subtypes (each with a different colour) that can be chained. For our purpose, any of them would do (I bought the blue one, because of its nice colour).
« Last Edit: October 27, 2006, 11:09:56 am by Pazu_Z »
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xjqian

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Usb Vga
« Reply #28 on: October 29, 2006, 10:45:51 am »
somebody able to compile it for tosa (2.4.18 kernel) under pdaxrom?
« Last Edit: October 29, 2006, 10:46:05 am by xjqian »
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madfitz

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Usb Vga
« Reply #29 on: October 30, 2006, 06:41:38 pm »
But does the presentation software only work with pictures and the presenter slides (Power Point) or only for presenter slides or will it display say what is on the screen, such as the Word Editor/Text Editor or Music Player or console?

My CaCko ROM version has ‘Mirror” which I believe is supposed to “mirror” the display on a presentation card. Is this so and if so, is that a USB to VGA or the Sharp CF to VGA?

I’m running Qtopia 1.5.4
Kernel 2.4.20
CaCko Zaurus Qtopia Rom 1.23 for the SL-C3200
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