[gdm/disable-hybrid-nvidia: 1/5] data: Disable wayland on nvidia if suspend is broken

[Ray Strode <halfline src gnome org>]

commit db5710ee5a22230818b37fec836c98429f60e2f6
Author: Ray Strode <rstrode redhat com>
Date:   Fri Mar 4 14:11:03 2022 -0500

    data: Disable wayland on nvidia if suspend is broken
    
    The vendor nvidia driver scrambles texture memory during suspend, and
    only restores it under certain situations.
    
    This commit tries to detect those situations and only use wayland
    in those cases.

 data/61-gdm.rules.in | 12 ++++++++++++
 1 file changed, 12 insertions(+)
---
diff --git a/data/61-gdm.rules.in b/data/61-gdm.rules.in
index 744cb4f74..7a47bfa46 100644
--- a/data/61-gdm.rules.in
+++ b/data/61-gdm.rules.in
@@ -22,6 +22,18 @@ KERNEL!="nvidia", GOTO="gdm_nvidia_end"
 SUBSYSTEM!="module", GOTO="gdm_nvidia_end"
 ACTION!="add", GOTO="gdm_nvidia_end"
 RUN+="/usr/bin/touch /run/udev/gdm-machine-has-vendor-nvidia-driver"
+
+# Check if suspend/resume services necessary for working wayland support is available
+TEST{0711}!="/usr/bin/nvidia-sleep.sh", GOTO="gdm_disable_wayland"
+TEST{0711}!="/usr/lib/systemd/system-sleep/nvidia", GOTO="gdm_disable_wayland"
+IMPORT{program}="/bin/sh -c \"sed -e 's/: /=/g' -e 's/\([^[:upper:]]\)\([[:upper:]]\)/\1_\2/g' -e 
's/[[:lower:]]/\U&/g' -e 's/^/NVIDIA_/' /proc/driver/nvidia/params\""
+ENV{NVIDIA_PRESERVE_VIDEO_MEMORY_ALLOCATIONS}!="1", GOTO="gdm_disable_wayland"
+IMPORT{program}="/bin/sh -c 'echo NVIDIA_HIBERNATE=`systemctl is-enabled nvidia-hibernate`'"
+ENV{NVIDIA_HIBERNATE}!="enabled", GOTO="gdm_disable_wayland"
+IMPORT{program}="/bin/sh -c 'echo NVIDIA_RESUME=`systemctl is-enabled nvidia-resume`'"
+ENV{NVIDIA_RESUME}!="enabled", GOTO="gdm_disable_wayland"
+IMPORT{program}="/bin/sh -c 'echo NVIDIA_SUSPEND=`systemctl is-enabled nvidia-suspend`'"
+ENV{NVIDIA_SUSPEND}!="enabled", GOTO="gdm_disable_wayland"
 LABEL="gdm_nvidia_end"
 
 # If this machine has an internal panel, take note, since it's probably a laptop