Comment 16 for bug 1479913

Thank you Dan Ștefan Stroe (stroestefan) and Somberlain (somberlain218) for cleaning up my patch and giving more instructions. However, since this is a patch to a dkms module, I believe the proper way is to add it to dkms patches directory and modify dkms.conf.in. This way the original, proprietary code is distributed unchanged, and the patch is applied when the dkms module is built on install. I am not a dpkg expert, though...

You can use the attached patch thus:

sudo apt-get build-dep fglrx-installer-updates
apt-get source fglrx-installer-updates
cd fglrx-installer-updates-15.200
patch -p1 < ../fglrx_ignore_hotplug.diff
dpkg-buildpackage -rfakeroot -uc -us -b
sudo dpkg -i ../fglrx-updates-core_15.200-0ubuntu0.3_amd64.deb

This should generate a new fglrx-updates-core package in the parent directory. When installed, it will call dkms build, which will apply the patch and build the kernel module.

You can check dkms with
sudo dkms status

and to rebuild (should have been done by the above install)

sudo dkms remove fglrx-updates-core/15.200 -k 3.19.0-26-generic
sudo dkms build fglrx-updates-core/15.200 -k 3.19.0-26-generic
sudo dkms install fglrx-updates-core/15.200 -k 3.19.0-26-generic
sudo update-initramfs -k 3.19.0-26-generic -u

Disclaimer: This is patching kernel modules. Here Be Dragons. This may make your computer unbootable. This may blow up your computer and all your files. This may kill your cat. Make sure you have adequate backups, time, and access to a linux expert (yourself or friend) before attempting