Bug#900787: nvidia-graphics-drivers-legacy-304xx: does not support Xorg Xserver 1.20

[Pierre Bernhardt]

Package: xserver-xorg-video-nvidia-legacy-304xx
Version: 304.137-7
Followup-For: Bug #900787

Dear Maintainer,

I use a Dell Inspiron 9400 Laptop with a nvidia 7900 Go
graphics adapter which is not changegable to a newer
gpu card.
This 64 bit laptop is for the trash bin if I cannot
use it any more like with freecad which supports
also nouveau driver, but is not really working with
all needed hw acceleration.
So also freecad as an example is not really usuable
with nouveau on this laptop and other accelerations
looks like not further usuable like video decoding via
gpu.

Please add support for the legacy driver for my
card (which is still only available by 304xx).
It looks like the installation could be only
possible by using stretch and not buster?
And what is if the support for stretch ends?
So downgrade to stretch is also not the optimal
option.
Is it not really possible to use xserver version
1.20 for this driver or must I downgrade xserver
to 1.19?

Save the world from electronic trash by eol
supported software.

Cheers,

PS: I installed only the 304xx from unstable.
All the rest is still from stable.

-- System Information:
Debian Release: 10.1
  APT prefers stable-updates
    APT policy: (500, 'stable-updates'), (500, 'unstable'), (500,
    'stable')
    Architecture: amd64 (x86_64)
    Foreign Architectures: i386

    Kernel: Linux 4.19.0-6-amd64 (SMP w/2 CPU cores)
    Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE,
    TAINT_UNSIGNED_MODULE
    Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8),
    LANGUAGE=de_DE:en (charmap=UTF-8)
    Shell: /bin/sh linked to /bin/dash
    Init: systemd (via /run/systemd/system)

    Versions of packages xserver-xorg-video-nvidia-legacy-304xx depends
    on:
    ii  libc6
    2.28-10
    ii  libnvidia-legacy-304xx-glcore
    304.137-7
    ii  nvidia-installer-cleanup
    20151021+9
    ii  nvidia-legacy-304xx-alternative
    304.137-7
    ii  nvidia-support
    20151021+9
    pn  xorg-video-abi-23 | xorg-video-abi-20 | xorg-video-abi-19 | xor
    <none>
    ii  xserver-xorg-core
    2:1.20.4-1
    ii  xserver-xorg-legacy
    2:1.20.4-1

    Versions of packages xserver-xorg-video-nvidia-legacy-304xx
    recommends:
    pn  nvidia-legacy-304xx-driver
    <none>
    ii  nvidia-legacy-304xx-kernel-dkms [nvidia-legacy-304xx-kernel-304.
    304.137-7
    ii  nvidia-legacy-304xx-vdpau-driver
    304.137-7
    ii  nvidia-settings-legacy-304xx
    304.137-2