On Thu, 13 Dec 2007 19:16:49 -0800, Dean S. Messing wrote: > Amadeus W.M. wrote: > : Dean Messing wrote: > : > Does the open source driver have (the equivalent of) TwinView these > : > days? I need TwinView to make my laptop drive an external : > > projector/beamer. > : > > : > : I don't think so. But I couldn't get TwinView to work with the nvidia > : driver either. I do get to display, on my hdtv, but I can't clone the > : laptop monitor. I get a desktop stretching over both displays, half on > : the laptop, half on the tv. > > I don't mess with GUI's much so if you are uncomforatble editing your > xorg.conf, just disregard the following. > > Following is what I cobbled together for my laptop for doing just what > you want. (Normally one wants a clone, not an extension of one's > desktop when one is using a projector.) > > I don't pretend to be an X config expert but the following does work > (for me). More comments after the code. > > > ======= Begin "relevant section of laptop xorg.conf file" ======= > Section "ServerLayout" > Identifier "Layout0" > Screen 0 "Screen0" 0 0 > InputDevice "Keyboard0" "CoreKeyboard" InputDevice "Synaptics" > "CorePointer" > EndSection > > <snip> > > Section "ServerFlags" > Option "Xinerama" "0" > Option "AIGLX" "on" > EndSection > > <snip> > > Section "Monitor" > Identifier "Monitor0" > VendorName "Unknown" > ModelName "Seiko" # this is the 1920x1080 laptop panel manuf. > HorizSync 30.0 - 75.0 > VertRefresh 60.0 - 60.0 > Option "DPMS" > EndSection > > Section "Device" > Identifier "Videocard0" > Driver "nvidia" > VendorName "NVIDIA Corporation" > BoardName "Quadro FX Go1400" > Option "RenderAccel" "true" > Option "BackingStore" "On" > Option "DPI" "100x100" > Option "AddARGBGLXVisuals" "True" Option > "DisableGLXRootClipping" "True" > EndSection > > Section "Screen" > Identifier "Screen0" > Device "Videocard0" > Monitor "Monitor0" > DefaultDepth 24 > Option "TwinView" "1" > Option "ConnectedMonitor" "DFP, CRT" Option "metamodes" "DFP: > 1920x1200; DFP: 1920x1200, CRT: 1024x768" Option > "TwinViewOrientation" "clone" SubSection "Display" > Depth 24 > Modes "1920x1200" "1024x768" > EndSubSection > EndSection > > Section "Extensions" > Option "Composite" "Enable" > EndSection > ======== End "relevant section of laptop xorg.conf file" ======== > > Here's how this is used: > > I normally just run my laptop w/o a second monitor so I have never > booted with a second monitor hooked up. I say this because, based on > some traffic in another thread, if you do boot with the 2nd monitor > hooked up, then the "Fn-CRT/LCD" key may come into play (at least on a > laptop) and with the above setup it does not. > > My laptap panel is a 1920x1200 LCD. When I need to make a presentation > I plug in the VGA cable from the projector and hit "Ctrl-Alt-Fn +" > (that's control-alt-Fn `+') to switch modes from the first metamode (DFP > alone) to the second one (DFP, CRT). "CRT" does _not_ mean you must > have a CRT hooked up (contrary to what Lonni Friedman seems to believe). > It is just the device on the other end of the VGA cable. > > If you're using a regular keyboard (not a laptop kbd) then there's often > an explicit keypad with a + and - keys. In that case leave off the the > "Fn" (i.e. "function") part of the sequence above and use the keypad + > and -. The + atop the = will not work here. (See the "Modes" section of > the xorg.conf man page for more on this). > > With the above recipe, I see the desktop at full resolution on my laptop > and the upper left 1024x768 rectangle of it on the beamer. To switch > back I use "Ctrl-Alt-Fn -" > > If your external device is a modern multisync CRT or another FPD that > can be driven at 1920x1200, then I see no reason that the above (mutatis > mudandis) should not give you a clone of your entire desktop. Or you can > run your laptap at a lower-than-native resolution to match the output > device. That of course will result in a degraded laptop display due to > the resampling that must be done. > > One more thing: my xorg.conf file came from running > livna-config-display to get the basic entries right. I then added the > TwinView stuff myself and dorked around till it worked. Of course I > also studied the (excellent) Nvidia driver documentation which you shd. > find by running > > locate -i nvidia | grep -i readme > > from the comline (assuming your "mlocate" database is up-to-date). On my > system this prints: > > /usr/share/doc/xorg-x11-drv-nvidia-100.14.19/README.Fedora > /usr/share/doc/xorg-x11-drv-nvidia-100.14.19/README.txt > > The first file is useful basic stuff. The 2nd file is where all the > action is. Spend some time reading it and you will be an expert. :-) > > Dean Thank you, indeed nice write-up. At a first glimpse, I noticed "TwinViewOrientation" "clone" that your xorg.conf has and mine doesn't. I do have TwinView 1. The xorg.conf file I have I created with nvidia-setup It's pretty good, and I did get to display on the tv, just not clone. Thanks for the tips.
