On Fri, Feb 13, 2009 at 10:54:23AM -0600, Ron Siven wrote: > Dave Mitchell wrote: >> I have a laptop with F10, and am trying to get an external VGA LCD panel to >> work (in a dual-head setting). >> >> I did the following: >> >> * login using gnome >> * attach + power up monitor (it goes into 'no-signal' power save mode) >> * Fire up gnome-display-properties (System > Preferences > Hardware > >> Screen Resolution) >> >> It detects the external monitor; I select it, change its resolution from >> 'off' to '1440x900', click apply, and the monitor resolutely stays in >> power save mode. >> >> Also, quitting then restarting gnome-display-properties shows the >> monitor's resolution setting has switched back to 'off'. >> >> Any suggestions? >> >> It's a Dell 640m laptop with Intel 945GM graphics. >> >> xrandr shows: >> >> Screen 0: minimum 320 x 200, current 1440 x 900, maximum 1440 x 1440 >> VGA connected (normal left inverted right x axis y axis) >> 1440x900 59.9 + 75.0 59.9 1400x1050 60.0 >> 1280x1024 75.0 60.0 1280x960 60.0 1152x864 >> 75.0 1024x768 75.0 70.1 60.0 832x624 74.6 >> 800x600 72.2 75.0 60.3 56.2 640x480 >> 75.0 72.8 75.0 66.7 59.9 720x400 70.1 LVDS >> connected 1440x900+0+0 (normal left inverted right x axis y axis) 300mm >> x 190mm >> 1440x900 60.0*+ >> 1024x768 60.0 800x600 60.3 640x480 59.9 >> TV disconnected (normal left inverted right x axis y axis) >> >> >> > This helped me: > > http://www.thinkwiki.org/wiki/Xorg_RandR_1.2 Ah thanks. For the record, my problem was due to insufficient virtual screen size. I created a minimal /etc/X11/xorg.conf to set a virtual screen big enough for two 1440x900 displays stacked vertically: Section "Screen" Identifier "Default Screen" Device "Configured Video Device" DefaultDepth 24 SubSection "Display" Depth 24 Virtual 1400 1800 EndSubSection EndSection Logged back in, and now it works (modulo gnome panels being screwed up in various unamusing ways). -- You live and learn (although usually you just live). -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
