$ lsb_release -all Description: Ubuntu 12.04 LTS Release: 12.04 Codename: precise $ lspci -v 01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI RV770 [Radeon HD 4870] (prog-if 00 [VGA controller]) Subsystem: XFX Pine Group Inc. Device 2448 Flags: bus master, fast devsel, latency 0, IRQ 45 Memory at c0000000 (64-bit, prefetchable) [size=256M] Memory at ff6f0000 (64-bit, non-prefetchable) [size=64K] I/O ports at 8000 Expansion ROM at ff6c0000 [disabled] [size=128K] Capabilities: <access denied> Kernel driver in use: radeon Kernel modules: radeon At the moment of this writing, my xorg.conf (/etc/X11/xorg.conf) is empty. Referring to the image above, I have previously activated the first item -- ATI/AMD proprietary FGLRX graphics driver (post-release updates) -- and after rebooting my screen shows a message that says "No input signal... out of range" or something similar to that effect. I had no choice but to reinstall Ubuntu. 4 times already. I am using a VGA input LCD screen. Screen resolution is, I believe, small -- fonts, images appear fairly large on a 17" screen. Question is how to update the graphic card so that Ubuntu takes advantage of every aspect of the graphics card? It is now a fresh install. If you need any more info, I'll be happy to provide. Any help appreciated. Thanks!