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I had the beta drivers running previously and after a standard update it stopped working. What I've tried so far:

sudo apt-get remove --purge fglrx*

Then downloaded drivers from Amd website and unzipped it and ran:

sudo ./ --buildpkg Ubuntu/trusty
sudo dpkg -i fglrx*.deb

After this the Ubuntu BinaryDriverHowTo/AMD guide wants to make this:

aticonfig --initial

and it returns:

Unable to open /etc/ati/control, please reinstall the driver.
aticonfig: No supported adapters detected

The adapter is 280x and as said, it worked previously with the same drivers and with the same installation procedure.

Any ideas?

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You should probably not ask this question here. Ubuntu 14.04 OS is off topic. – VenkiPhy6 Apr 10 '14 at 14:26
I'm having the same problem on saucy, so might not be related to the dev version. I also seem to have lost symlinks to amdconfig etc, but get the same output as above when I run them from /usr/lib/fglrx/bin – Dave Marshall Apr 14 '14 at 8:53
"Unable to open /etc/ati/control, please reinstall the driver.". Does that file exist? What are the permissions if it does? if it does not: extract the file from the tar file and copy it over to /etc/ati/. And then try again :) – Rinzwind Apr 26 '14 at 7:50
I have the same issue. I have installed and removed the drivers about 4 times at this stage but still I get the same error above even though driver seems to be install correctly. – motionpotion Apr 26 '14 at 22:56

Use this commands as root:

/usr/lib/fglrx/switchlibGL amd # or /usr/lib/fglrx/switchlibglx amd

And after rebooting, try to execute

aticonfig --initial
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This command does all the setup that Ken Wolf's answer does manually. There's also no need to reboot before running aticonfig --initial. – saffsd Aug 20 '14 at 1:53

I managed to get it working by creating a few of the missing symbolic links:

sudo ln -s /usr/lib/fglrx/bin/aticonfig /usr/bin/aticonfig
sudo ln -s /usr/lib/fglrx/etc/ati/ /etc/ati

I was then able to run aticonfig as normal

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I had such message too just after a (re)installation of ATI driver (Catalyst). Try the following:

sudo apt-get -f install

My system:

Graphics: ASUS R7240-SL-2GD3-L (AMD Radeon R7 240) OS: KUbuntu 14.04 Graphics driver: AMD Catalyst™ 15.5 Proprietary Linux x86 Display Driver

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P.S. Then I (via deb package manager - Muon) lock versions for these packages: fglrx, fglrx-core, fglrx-amdcccle. This because a normal update procedure brings a system into a state where graphics driver does not function (i. e., system can not switch to a graphic mode on loading). I found this way experimentally. – ChapaikinVA Jun 16 '15 at 7:22

I am on 16.04 (xenial) but had the same problems and probably the same solution. The only solution I found was to manually unpack the fglrx-core debian package and copy the /etc/ati/control and /etc/ati/atiapfxx files from that unpacked directory to the correct locations using sudo.

The deb packages that are installed end up in /var/cache/apt/archives/

So I moved to some new directory and did

dpkg-deb -x /var/cache/apt/archives/fglrx-core<some version number>.deb .
sudo cp etc/ati/atiapfxx etc/ati/control /etc/ati/

After that I was able to use aticonfig and also amdcccle started to work.

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