Ubuntu – Why xcalib invert screen doesn’t work with ubuntu 12.10

Full disk encryption is using the dm-crypt kernel module, managed by Luks/cryptsetup. If you choose to encrypt your home directory, eCryptfs is used instead. These are two different technologies. I assume you chose full disk encryption here in my answer.

Use the command

# cryptsetup luksDump /dev/sda5

to view the current detailed configuration for sda5. And another example:

# cryptsetup status sda5_crypt
/dev/mapper/sda5_crypt is active and is in use.
  type:    LUKS1
  cipher:  aes-cbc-essiv:sha256
[...]

Read more on dm-crypt on Wikipedia: dm-crypt and more on eCryptfs on Wikipedia: eCryptfs.

I was not using the same graphics card, but I was able to install the BETA AMD drivers on 12.10.

Main Instructions

However, I had a few issues, so here were my modifications to the steps given in the 12.10 section.

• Purge Items per instructions (from the 12.04 LTS section)
• Install Dependencies (from the 12.04 LTS section)
  • MODIFY sudo apt-get install ia32-libs; those libs didn't exist. I went to the package manager and found ia32-libs-multiarch that are mentioned in the 64-bit section; I am 32bit. I didn't install from command line.
• MODIFY, I didn't do the WGET or chmod on the 12.6 version shown in the steps, I went to AMD's site and downloaded the BETA drivers. (Follow link in the second COMMENT from "thelastshadow").
• Ran commands to install/reboot.

Do everything in that second link, I rebooted with new drivers, then ran the script to uninstall the watermark. So, all the right steps are here and answered, just have to jumble them up a bit! BTW, the 12.6 and the 12.10 drivers DID NOT work for me. I had to uninstall them and follow the same steps with the beta drivers and they worked fine. I did the steps exactly as shown using the 12.6 with the wget and didn't have success.

Hope that helps!