Hi Bernie, the new udlfb fixed it! Its working great now. Many Thanks! I've attached the xorg.conf I was using. The only custom bit is the "DisplaySize" setting that I added to stop some apps using huge fonts. It didn't affect the line issue at all and it may not be necessary with the new udlfb. :-) <div class="gmail_quote">On Fri, Oct 15, 2010 at 12:28 AM, Bernie Thompson <<a href="mailto:bernie@plugable.com" target="_blank">bernie@plugable.com</a>> wrote: <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> Hi Craig, Two thoughts: <div> On Thu, Oct 14, 2010 at 9:00 PM, Craig Inglis <<a href="mailto:craig.inglis@gmail.com" target="_blank">craig.inglis@gmail.com</a>> wrote: > (II) DL(0): Supported color encodings: RGB 4:4:4 YCrCb 4:4:4 </div>Can you post your xorg.conf? Want to make sure Depth is either not specified or set to 16 (udlfb uses 16-bit RGB56) Also, you might want to try the latest udlfb (this is the effectively the version in kernel 2.6.37, but has been carefully ifdef'd to compile for older kernels). sudo apt-get install module-assistant sudo module-assistant prepare git clone <a href="http://git.plugable.com/webdav/udlfb/" target="_blank">http://git.plugable.com/webdav/udlfb/</a> cd udlfb make sudo make install sudo depmod -a Let us know if either of these help. Best wishes, Bernie <a href="http://plugable.com/" target="_blank">http://plugable.com/</a> _______________________________________________ Libdlo mailing list <a href="mailto:Libdlo@lists.freedesktop.org" target="_blank">Libdlo@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/libdlo" target="_blank">http://lists.freedesktop.org/mailman/listinfo/libdlo</a> </blockquote></div>