Hello, First I changed my second nVidia from 6200 to 7300 (PCI-E Slot #2) so now I have an 6800 GS on slot 1 and an 7300 GT on Slot 2. There is no SLI bridge installed. Both cards has fitted only an screen on the DVI port. The VGA is not connected. With my old lenny installation the dual screen configuration was working. I installed fresh lenny and upgraded full to testing. Because of another problem with an vmware xorg module a have removed the xserver-xorg-video-all and installed only the following driver modules: ii xserver-xorg-video-dummy 1:0.3.3-2 X.Org X server -- dummy display driver ii xserver-xorg-video-fbdev 1:0.4.2-2 X.Org X server -- fbdev display driver ii xserver-xorg-video-nouveau 1:0.0.15+git20100329+7858345-4 X.Org X server -- Nouveau display driver (ex ii xserver-xorg-video-nv 1:2.1.17-3 X.Org X server -- NV display driver ii xserver-xorg-video-vesa 1:2.3.0-3 X.Org X server -- VESA display driver I'm use nv module at the moment. Without having an configuration file on first screen (Monitor on 6800 GS) all looks good. If I create the dual screen configuration with Xorg --configure and test the configuration with Xorg -config xorg.conf.new -retro (retro so I can see output and an pointer on the screen) both monitors now show the classic background and the classix X pointer on the screen which is connected to 6800 GS card. I can now moving the pointer on the first screen without any problem. I can use CTRL-ALT-F1 to flip to the tty console. But if I will move the pointer the other screen at this time the pointer hangs on the right side of the first screen and the Xserver do nothing any more; all static on the screen. CTRL-ALT-BS will not work and CTRL-ALT-F1 will not flip to the terminal console. I can still log in to the computer remotely via ssh but the Xorg process could not be killed with kill nor with kill -9. So I have rebooted the system. I googled for the error and found something which looks like this is not a problem of the nv-driver itself. It's possible a main problem, because I found problem with ati, amd and intel gpu's if there more than one gpu is fitted, too. Pierre
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