I am using Ubuntu Gnome 14.10 64 bit on Dell Inspiron 3521. I have ATI Radeon 7560M HD Series Graphics Card. I tried installing ATI Graphics card in different ways.
1)Selecting fglrx from Additional Drivers under Software & Updates section
2)Selecting fglrx-updates from Additional Drivers under Software & Updates section
3)Downloaded latest ATI Driver (amd-catalyst-14-9-linux-x86-x86-64.zip) from AMD website and installed it.
Before trying every option, I uninstalled older drivers completely.
In every option, after reboot, all I got is a text console. Couldn't able to get into Display at all. Is there any driver working for Ubuntu Gnome 14.10 ? How can I get it and install it ?
The primary reason for me installing is the battery backup. Its hardy 40 mins on Ubuntu where as its 4+ hours on Windows. I want to install ATI Graphics card driver and disable the Discrete graphics card and enable only Intel graphics card so that battery back up will be better.
Please help. Thanks in Advance.
Update: This is the error I am getting
/usr/bin/X: symbol lookup error: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/modules/extensions/libglx.so: undefined symbol: LoadExtension
Xinit: giving up
Xinit: unable to connect to X server: Connection refused
Xinit: server error
Update2 : Tried amd-catalyst-omega-14-12-linux-x86-x86-64.zip but no luck
You're seeing the symbol lookup errors because the amd-catalyst-14-9-linux-x86-x86-64.zip and amd-catalyst-omega-14-12-linux-x86-x86-64.zip packages are only compatible with the LTS releases, 12.04 and 14.04. So one option would be to downgrade from 14.10 to 14.04.
However, the release notes for the RUN installer indicate that it is compatible with 14.10. It is a more complicated install, but with the driver being built for your system you won't get symbol lookup errors.
Before you start, be sure you have all of the build dependencies:
Then download amd-catalyst-omega-14.12-linux-run-installers.zip and follow AMD's installation instructions.
Try this:
Edit your GRUB file /etc/default/grub
old:
GRUB_CMDLINE_LINUX=""
fix:GRUB_CMDLINE_LINUX="nomodeset"
and save & exit.