On XO-1? Or XO-1.5? Maybe I typo'ed the rpm name...
m On Fri, Jul 16, 2010 at 12:07 PM, Reuben K. Caron <reu...@laptop.org> wrote: > Martin, > Esteban found that xorg-x11-drv-sisvga is not available > but xorg-x11-drv-sisusb is available. Using xorg-x11-drv-sisusb worked fine. > Reuben > > Begin forwarded message: > > Message: 2 > Date: Fri, 9 Jul 2010 17:18:47 -0400 > From: Martin Langhoff <martin.langh...@gmail.com> > Subject: Re: USB2VGA adapters on XO-1.5 (and XO-1 with F11 images) > To: OLPC Devel <devel@lists.laptop.org> > Cc: Sridhar Dhanapalan <srid...@laptop.org.au>, san...@laptop.org, > Keith Wilbern <kwilb...@gmail.com>, rsm...@laptop.org > Message-ID: > <aanlktik-ofl5gc9roq2j97wqlysmjljg94rtjoyn8...@mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > On Thu, Jul 8, 2010 at 1:14 PM, Martin Langhoff > <martin.langh...@gmail.com> wrote: > > For monitors/projectors that can handle something close to 1200x900 -- > > 1152x864, you can use Xinerama instead. Here is an xorg.conf that does > > exactly that: > > The Xinerama approach turned out to be a winner in terms of > performance and !bugginess. > > Turns out that with a bit of elbow grease we can make it work on > 1024x768 which is what most projectors support. > > - yum install xorg-x11-drv-sisvga xorg-x11-server-Xephyr > > - Grab the files from http://dev.laptop.org/~martin/usbvga/xinerama/ > olpc-configure goes to /etc/init.d/ , make it executable > olpc-session goes to /usr/bin/ , make it executable > xorg-xo1.5-dcon-extmon.conf goes to /etc/X11/ > > - Plug the USB2VGA device > > - Reboot & Enjoy > > Limitations and notes: > > ?- Needs to be "switched on" at X startup time. olpc-configure checks > at boot time if sisusbvga is loaded and changes the xorg.conf symlink > if needed. My patch also fixes a longstanding old bug where the > xorg.conf was 'set' in the first boot. > > ?- The desktop is a little bit smaller. On the XO, the desktop > appears in the top-left corner -- on the external monitor / projector > it fills up the screen perfectly. > > - Icons can appear slightly pixellated. I think this technique may > expose a bug in Sugar and in some activities (ie: TurtleArt) that keep > a copy of rendered SVGs as bitmaps. > > ?- Performance is acceptable. (We are saturating the USB 2 bandwidth > with the amount of pixels and the bitdepth). > > - The Sugar cursor is back! > > - Video works! No Xv however, so it's not particularly fast. > > Patch to olpc-utils is attached -- I haven't tested the spec changes. > > cheers, > > > m > -- > ?martin.langh...@gmail.com > ?mar...@laptop.org -- School Server Architect > ?- ask interesting questions > ?- don't get distracted with shiny stuff? - working code first > ?- http://wiki.laptop.org/go/User:Martinlanghoff > -- mar...@laptop.org -- School Server Architect - ask interesting questions - don't get distracted with shiny stuff - working code first - http://wiki.laptop.org/go/User:Martinlanghoff _______________________________________________ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
