Description of problem:

One year old computer, xorg (as seen by XFdrake) was running with Graphic Card: "Custom" >> "Intel" >> "Kernel Mode setting (xorg modesetting)" until now but with this version X does not come up with following errors:

quote
(EE) Failed to load /usr/lib64/xorg/modules/drivers/modesetting_drv.so: /usr/lib64/xorg/modules/drivers/modesetting_drv.so: undefined symbol: gbm_bo_get_plane_count
(EE) Failed to load module "modesetting" (loader failed, 0)
(EE) No devices detected.
(EE) 
Fatal server error:
(EE) no screens found(EE) 
(EE) 
(EE) Please also check the log file at "/var/log/Xorg.9.log" for additional information.
(EE) 
(EE) Server terminated with error (1). Closing log file.
unquote

After I changed the Graphic Card in XFdrake to "Intel 810 and later" the problem disappears. But I should think that is a workaround, not a solution...

Google shows some similar errors from some years ago but i do not understand enough to fix it now.

My hardware: see output from lspcidrake attached.

Ask me anything else if needed to solve this. Thanks