Dear all, I've recently bought a new laptop, a Toshiba Portégé R700-185. Unfortunately I can't manage to run ROS properly on it, while I had no problems with my previous laptop (now in pieces...). I can rosmake all our libraries, which is great :-) When I launch RViz however (with a launch file specifying the packages to be run and so on), I got these errors: ===================================================================== do_wait: drmWaitVBlank returned -1, IRQs don't seem to be working correctly. Try adjusting the vblank_mode configuration parameter. ../../intel/intel_bufmgr_gem.c:1061: Error writing data to buffer 29: (0 1011072) Bad address . ===================================================================== I have the first two lines also if I run "rosrun rviz rviz", while I got the third intel error only when using the launch file (which I need to, as there are all the parameters). I've tried to look at the web and in the ros mailing list, but I didn't find anything :-( The first result on this list: http://www.ros.org/search/index.html?cx=013029357434904786434:afn5eukzpgg&cof=FORID:11;NB:1&ie=UTF-8&filter=0&num=10&input=Error+writing+data+to+buffer&q=Error+writing+data+to+buffer+more:ros_wiki_docs&sa=Submit seems to be relevant, but the page does not exist any more (and it is not on archive.org either). I've tried to comment out all the packages from the launch file, so now it is a mere list of parameters, plus rviz, but still the same result :-( Any suggestions? Thanks a lot! cheers, Francesco