found it: Ubuntu/ Xorg is the culprit (partly?).<br><br>in the 'default' situation at start-up Xorg first recognizes the Intel810 and loads the Intel-driver,<br>but after that concludes that it wants a VESA driver.<br>
<br>when i made a xorg.conf to change the amount of VideoRam, the loading of the VESA driver was gone, but in GEM my pictures were completely white, only the background color was visible. <br>where outside GEM everything looked normal.<br>
<br>this was finally solved by defining a Depth in Xorg.conf.<br>probably the lack of this parameter made GEM say: using 8 color bits.<br><br>rolf<br><br>in case somebody is confronted by this same problem my Xorg.conf is hereby included.<br>
<br><br>Section "Device"<br>Identifier "imonitor"<br>Driver "intel"<br>VideoRam 16384<br>EndSection<br><br>Section "Monitor"<br>Identifier "Generic Monitor"<br>EndSection<br>
<br>Section "Screen"<br>Identifier "Default Screen"<br>Device "imonitor"<br>Monitor "Generic Monitor"<br>DefaultDepth 24<br>SubSection "Display"<br> Depth 24<br> Modes "1024x768" "800x600"<br>
EndSubSection<br>EndSection<br><br>