Re: VGA questions
guylhem wrote: > Hello > > On Sun, May 17, 2009 at 20:54, Bobby Powers wrote: > > on a B4 (which just needed the VGA connector, no other components), > > Same here. I have a spare B4 board for these tests (I would like to > reproduce the identical picture of the XO on a projector for a > formation - and I'm talking about openfirmare and all) > > > I was able to > > drive full screen video on a large LCD from the XO, so its not > > useless > > That's just what I want to do. No internal LCD mirroring - plain VGA output > only > > So far I've been stopped by : > - the video routing question (CN18) > - the plug. I would like to avoid soldering wires to a VGA plug. > > Soldering the plug should take less than 5 minutes once I get the > correct type from digikey/mouser looking at an A-test board, the connector is a "Suyin" part (marking very tiny, on the front face). the back has a number "26147". looking at their website, it seems like it might be one of these: http://www.suyinusa.com/Parts%5CDesktop%5C070435FR015S2164U.pdf http://www.suyinusa.com/Parts%5CDesktop%5C070922FR015S201CY.pdf (i found these under "All Desktop Connectors" at http://www.suyinusa.com/all_products.asp ) i can't find the calipers right now, so i can't verify any dimensions from the technical drawings. i can do that, though. paul =- paul fox, p...@laptop.org ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: VGA questions
Hello On Sun, May 17, 2009 at 20:54, Bobby Powers wrote: > on a B4 (which just needed the VGA connector, no other components), Same here. I have a spare B4 board for these tests (I would like to reproduce the identical picture of the XO on a projector for a formation - and I'm talking about openfirmare and all) > I was able to > drive full screen video on a large LCD from the XO, so its not > useless That's just what I want to do. No internal LCD mirroring - plain VGA output only So far I've been stopped by : - the video routing question (CN18) - the plug. I would like to avoid soldering wires to a VGA plug. Soldering the plug should take less than 5 minutes once I get the correct type from digikey/mouser > If you are still interested, you could start with the following > references (although I didn't see any part numbers there). Already know them :-/ -- Dr. Guylhem Aznar, MD PhD Unité d'Analyse Médico-Économique Service de Santé Publique et d'Économie de la Santé Pôle SPSSR CHU de Fort de France BP 632 97261 Fort De France Cedex Martinique, France Tel : 05 96 55 23 47 Fax : 05 96 75 84 57 ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: VGA questions
On Sun, May 17, 2009 at 5:13 PM, Guylhem Aznar wrote: > Hello > > "A" boards had CN18 to select the output between VGA and LCD. > It is no longer presnt on the boards. How can it be implemented? > (strip wire, software, ... ?) > > For the VGA plug, I'd also be interested in a P/N to get one from > mouser, mousekey etc. > > Thanks all of the mass production boards (C2 and C3) are missing a number of passive parts, and I've only heard of 1 instance where someone successfully repopulated a board and got VGA out. From my experiences on a B4 (which just needed the VGA connector, no other components), its virtually impossible to get an image mirrored on VGA and LCD; external monitors don't play well with 1200x900 resolution and I couldn't get the LCD to work well outside of 1200x900. I was able to drive full screen video on a large LCD from the XO, so its not useless, but a USB VGA adaptor is probably a much easier solution. If you are still interested, you could start with the following references (although I didn't see any part numbers there). bobby http://www.olpcnews.com/hardware/screen/hacking_vga_adapter_xo_laptop.html http://wiki.laptop.org/go/Remote_display#Hacking_into_the_on-board_VGA_output ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: VGA questions
> "A" boards had CN18 to select the output between VGA and LCD. It is no > longer presnt on the boards. How can it be implemented? (strip wire, > software, ... ?) Have you tried a USB to VGA adapter? http://wiki.laptop.org/go/Adding_USB_SVGA -- These are my opinions, not necessarily my employer's. I hate spam. ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
VGA questions
Hello "A" boards had CN18 to select the output between VGA and LCD. It is no longer presnt on the boards. How can it be implemented? (strip wire, software, ... ?) For the VGA plug, I'd also be interested in a P/N to get one from mouser, mousekey etc. Thanks -- Dr. Guylhem Aznar, MD PhD Unité d'Analyse Médico-Économique Service de Santé Publique et d'Économie de la Santé Pôle SPSSR CHU de Fort de France BP 632 97261 Fort De France Cedex Martinique, France Tel : 05 96 55 23 47 Fax : 05 96 75 84 57 ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
