Hello Florian I am trying now to setup this works. Can you tell me
> and invoked by > > ./windump :0.0 :0.1 to which file should I put this command? to have that works. Many thanks in advance Best regards tikcop Dnia niedziela 01 maj 2011 o 00:51:42 Florian Berger napisał(a): > hello people! > > i recently bought a laptop (msi cx640) using nvidia optimus > unknowingly, that it was pretty unusable to me on linux. > however i found a (rather dirty) hack to be able to at least use my > nvidia graphics card, so that i dont have to throw my laptop into the > trashbin. > > heres what i did: > > first of all i installed the latest nvidia driver from www.nvidia.com > and set up a dual head xorg.conf with one screen configured with the > proprietary nvidia driver (see attachment) > the nvidia device had to be the primary device for me, otherwise it > wouldnt work. > > but my nvidia card doesnt have any output so i tried to vnc to the > other desktop, which was definitely too slow and/or too bad in quality. > finally i browsed for some X-programming tutorials and somehow > plugged together this bit of XShm code (windump.c - also see attachment) > that enables me to copy content from my nvidia desktop into a window of > my intel desktop at acceptable speed (of course depending on the load of > the system). > this thing took 24% of one of my 2 cpu cores. so as long as i dont > do heavy stuff it works quite ok. > i used a usleep to be able tune the framerate a bit (see code). > > the code is compiled by > > gcc -o windump windump.c -lX11 -lXext -lXtst > > and invoked by > > ./windump :0.0 :0.1 > > (actually i dont use Xtst anymore - first i tried to send events to > the nvidia desktop, but now i just draw a little mouse cursor into > the XImage - so you just move the mouse to the other desktop to > interact with the nvidia card) > > well ok thats it. its dirty and very spartan at but least enables me to > use the nvidia card. > im aware that this is in no way a perfect approach, but maybe somebody > might find it useful until a real solution is found, or even better > somebody knows how to optimize this method (its my first experience > with Xlib programming). > im thinking maybe of doing this in an LD_PRELOAD manner in a lib (by > e.g. intercepting XCreateWindow) and thereby copying content from every > nvidia opened window to a mirror window on the intel desktop. > > so long, hope it helps a bit, > -harp1n _______________________________________________ Mailing list: https://launchpad.net/~hybrid-graphics-linux Post to : [email protected] Unsubscribe : https://launchpad.net/~hybrid-graphics-linux More help : https://help.launchpad.net/ListHelp
