Bug#948568: nvidia-graphics-drivers: screen tearing with Linux 5.4 due to loss of "PRIME Synchronization"

[Raphaël Hertzog]

Source: nvidia-graphics-drivers
Version: 430.64-4
Severity: important
User: devel at kali.org
Usertags: origin-kali

We had multiple reports of nvidia users having refresh issues ever since
they switched to Linux 5.4.

I believe they are affected by the loss of "PRIME synchronization" as
explained in https://devtalk.nvidia.com/default/topic/1068045/linux/5-4-kernel-breaks-prime-synchronization-/

There's a patch for 440.44 in that thread but I don't know of any upstream
fix. Direct link to patch: https://gitlab.com/snippets/1927096

-- System Information:
Debian Release: bullseye/sid
  APT prefers oldoldstable
  APT policy: (500, 'oldoldstable'), (500, 'unstable'), (500, 'testing'), (500, 'stable'), (500, 'oldstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.19.0-6-amd64 (SMP w/4 CPU cores)
Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8), LANGUAGE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled