nvidia-legacy-304 patch for post-5.0 linux kernels
Update 2020-02-01: Patch updated for Linux 5.3/5.4.
Because seemingly nobody else did it for me, I had to patch the nvidia-legacy-304.137-7 Debian package to work with post-5.0 linux kernels (tested with 4.19.36, 5.1.21, 5.2.4, 5.4.15 on Debian buster).
The patch is here and can be applied by executing something like the following, after installing nvidia-legacy-304xx-kernel-dkms:
wget -O /tmp/nvidia-legacy-304xx-304.137-linux5.patch \ http://blog.schmorp.de/data/nvidia/nvidia-legacy-304xx-304.137-linux5.patch cd /usr/src/nvidia-legacy-304xx-304.137 patch -p1 -NEl </tmp/nvidia-legacy-304xx-304.137-linux5.patch
As another hint, the last xserver version that works with this is from stretch, you can install it (assuming you have stretch repos enabled) like this:
apt install xserver-xorg-core=2:1.19.2-1+deb9u5
For further reference, here are some relevant package versions I have installed:
ii glx-alternative-nvidia 1.0.0 amd64 ii libgl1-nvidia-legacy-304xx-glx:amd64 304.137-7 amd64 ii libgl1-nvidia-legacy-304xx-glx:i386 304.137-7 i386 ii libnvidia-legacy-304xx-cfg1:i386 304.137-7 i386 ii libnvidia-legacy-304xx-glcore:amd64 304.137-7 amd64 ii libnvidia-legacy-304xx-glcore:i386 304.137-7 i386 ii libnvidia-legacy-304xx-ml1:amd64 304.137-7 amd64 ii nvidia-installer-cleanup 20151021+9 amd64 ii nvidia-kernel-common 20151021+9 amd64 ii nvidia-legacy-304xx-alternative 304.137-7 amd64 ii nvidia-legacy-304xx-driver 304.137-7 amd64 ii nvidia-legacy-304xx-driver-bin 304.137-7 amd64 ii nvidia-legacy-304xx-driver-libs:amd64 304.137-7 amd64 ii nvidia-legacy-304xx-driver-libs:i386 304.137-7 i386 ii nvidia-legacy-304xx-driver-libs-i386:i386 304.137-7 i386 ii nvidia-legacy-304xx-kernel-dkms 304.137-7 amd64 ii nvidia-legacy-304xx-kernel-support 304.137-7 amd64 ii nvidia-legacy-304xx-vdpau-driver:amd64 304.137-7 amd64 ii nvidia-modprobe 418.56-1 amd64 ii nvidia-settings-legacy-304xx 304.137-2 amd64 ii nvidia-support 20151021+9 amd64 ii xserver-xorg 1:7.7+19 amd64 hi xserver-xorg-core 2:1.19.2-1+deb9u5 amd64 ii xserver-xorg-input-evdev 1:2.10.6-1 amd64 ii xserver-xorg-input-libinput 0.28.2-2 amd64 ii xserver-xorg-input-mtrack 0.3.1-1+b2 amd64 ii xserver-xorg-input-synaptics 1.9.1-1 amd64 ii xserver-xorg-legacy 2:1.20.4-1 amd64 ii xserver-xorg-video-nvidia-legacy-304xx 304.137-7 amd64
Lastly, the patch is supposed to be minimal and functional, not clean, nice, or anything else.