I disabled the specific extension(s) included in extmod by editing xorg.conf - commenting out the line that usually loads extmod and replacing it with a SubSection entry, including the option to leave out the specified part. Like this:
in file /etc/X11/xorg.conf :
# Load "extmod" SubSection "extmod" Option "omit sync" EndSubSection
I disabled the specific extension(s) included in extmod by editing xorg.conf - commenting out the line that usually loads extmod and replacing it with a SubSection entry, including the option to leave out the specified part. Like this:
in file /etc/X11/xorg.conf :
# Load "extmod"
Option "omit sync"
EndSubSection
SubSection "extmod"