grep EE /home/user/CustomDebs/Xorg.0.log
Code:
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[ 721.532] Initializing built-in extension MIT-SCREEN-SAVER
[ 721.545] (EE) Failed to load /usr/lib/x86_64-linux-gnu/xorg/extra-modules/extra-modules.dpkg-tmp/modules/drivers/fglrx_drv.so: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/extra-modules.dpkg-tmp/modules/drivers/fglrx_drv.so: undefined symbol: noXFree86DRIExtension
[ 721.545] (EE) Failed to load module "fglrx" (loader failed, 7)
[ 721.555] (EE) Failed to load /usr/lib/x86_64-linux-gnu/xorg/extra-modules/extra-modules.dpkg-tmp/modules/drivers/fglrx_drv.so: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/extra-modules.dpkg-tmp/modules/drivers/fglrx_drv.so: undefined symbol: noXFree86DRIExtension
[ 721.555] (EE) Failed to load module "fglrx" (loader failed, 7)
[ 721.561] (EE) open /dev/dri/card0: No such file or directory
[ 721.562] (EE) open /dev/fb0: No such file or directory
[ 721.562] (EE) Screen 0 deleted because of no matching config section.
[ 722.206] (EE) GLX error: Can not get required symbols.
[ 722.219] (II) XKB: reuse xkmfile /tmp/server-76D2B5A359D34EEB9BFAEB1701EF70014DF39715.xkm