<div dir="ltr"><div><div><div>Hi Zoltan, </div>If there are no errors in the LightDM logs then it looks like a limitation of your hardware? Perhaps only one screen supports OpenGL? </div>You might have more luck filing bugs against X in Ubuntu. </div>--Robert </div><div class="gmail_extra"> <div class="gmail_quote">On 8 January 2013 02:12, Zoltan Szecsei <<a href="mailto:zoltans@geograph.co.za" target="_blank">zoltans@geograph.co.za</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi, Using ubuntu 12.10 with default lightdm v1.4.0 and default unity-greeter. Please can someone help. I am certain that my xorg.conf and lightdm.conf are correct because if I uncomment Seat0 and comment out Seat1 then the correct monitor comes up and is fully usable. Likewise if I comment out Seat0 and uncomment Seat1 it also works (on the other kyb/monitor/mouse). When I uncomment both Seat0 and Seat1 then nothing comes up and I get a banner message on Seat0 screen: "The system is running in low graphics mode" "Your Screen, Graphics card and input device settings could not be detected correctly. You will need to configure them yourself" I can see no errors in /var/log/ Xorg.0.log (and .1.log) nor in any of the /var/log/lightdm/* files Thanks & regards, Zoltan My /etc/lightdm/lightdm.conf file has: [LightDM] #start-default-seat=true #greeter-user=lightdm minimum-display-number=0 minimum-vt=7 #user-authority-in-system-dir=false #guest-account-script=guest-account #log-directory=/var/log/lightdm #run-directory=/var/run/lightdm #cache-directory=/var/cache/lightdm #xsessions-directory=/usr/share/xsessions #xgreeters-directory=/usr/share/xgreeters [SeatDefaults] xserver-command=/usr/bin/X #xserver-layout= #xserver-config= #xserver-allow-tcp=false #xdmcp-manager= #xdmcp-port=177 #xdmcp-key= ##########################################greeter-session=lightdm-gtk-greeter greeter-session=unity-greeter #greeter-hide-users=false #greeter-allow-guest=true greeter-show-manual-login=true ##########################################user-session=xubuntu user-session=ubuntu #allow-guest=true #guest-session=UNIMPLEMENTED #session-wrapper=lightdm-session #display-setup-script= #greeter-setup-script= #session-setup-script= #session-cleanup-script= #autologin-guest=false #autologin-user= #autologin-user-timeout=0 #autologin-session=UNIMPLEMENTED exit-on-failure=true [Seat:0] xserver-command=/usr/bin/X :0 -sharevts xserver-config=xorg.conf xserver-layout=seatTop [Seat:1] xserver-command=/usr/bin/X :1 -sharevts xserver-config=xorg.conf xserver-layout=seatMid -- =========================================== Zoltan Szecsei PrGISc [PGP0031] Geograph (Pty) Ltd. P.O. Box 7, Muizenberg 7950, South Africa. 65 Main Road, Muizenberg 7945 Western Cape, South Africa. 34° 6'16.35"S 18°28'5.62"E Tel: <a href="tel:%2B27-21-7884897" value="+27217884897" target="_blank">+27-21-7884897</a> Mobile: <a href="tel:%2B27-83-6004028" value="+27836004028" target="_blank">+27-83-6004028</a> Fax: <a href="tel:%2B27-86-6115323" value="+27866115323" target="_blank">+27-86-6115323</a> <a href="http://www.geograph.co.za" target="_blank">www.geograph.co.za</a> =========================================== _______________________________________________ LightDM mailing list <a href="mailto:LightDM@lists.freedesktop.org" target="_blank">LightDM@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/lightdm" target="_blank">http://lists.freedesktop.org/mailman/listinfo/lightdm</a> </blockquote></div> </div>