I have the same problem with HD6630. In Xorg.log I see segmentation fault error.
[ 44.537] (EE) [ 44.537] (EE) Backtrace: [ 44.591] (EE) 0: /usr/bin/X (xorg_backtrace+0x36) [0x7f756ee10bd6] [ 44.591] (EE) 1: /usr/bin/X (0x7f756ec68000+0x1aca09) [0x7f756ee14a09] [ 44.591] (EE) 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f756df8e000+0xfcb0) [0x7f756df9dcb0] [ 44.591] (EE) 3: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7f756aaee000+0x6d163) [0x7f756ab5b163] [ 44.591] (EE) 4: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/extra-modules.dpkg-tmp/modules/drivers/fglrx_drv.so (xdl_xs113_atiddxPxPreInit+0x125) [0x7f756b3ea9e5] [ 44.591] (EE) 5: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/extra-modules.dpkg-tmp/modules/drivers/fglrx_drv.so (xdl_xs113_atiddxPreInit+0x1f59) [0x7f756b3c75e9] [ 44.591] (EE) 6: /usr/bin/X (InitOutput+0xb02) [0x7f756ecffb72] [ 44.591] (EE) 7: /usr/bin/X (0x7f756ec68000+0x44386) [0x7f756ecac386] [ 44.591] (EE) 8: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xed) [0x7f756cc1376d] [ 44.591] (EE) 9: /usr/bin/X (0x7f756ec68000+0x448ad) [0x7f756ecac8ad] [ 44.591] (EE) [ 44.591] (EE) Segmentation fault at address 0xc0 [ 44.591] -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to fglrx-installer in Ubuntu. https://bugs.launchpad.net/bugs/1068661 Title: 1002:6740 Unity does not load after installing fglrx-installer Radeon HD 6700M Series To manage notifications about this bug go to: https://bugs.launchpad.net/fglrx/+bug/1068661/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
