The file name could be different. Please try:
find /var/lib/dkms -name \*.log
and also report what this command shows:
sudo dpkg-reconfigure fglrx-installer-updates
The file name could be different. Please try:
find /var/lib/dkms -name \*.log
and also report what this command shows:
sudo dpkg-reconfigure fglrx-installer -updates