Exciting! Thank you so much for your help mate, it’s very much appreciated.

I did try kernel 6.6 without either patch before installing the new one, and I can confirm that the issue was still present on that version.

With the new patch though (after adding a comma to the end of each .ident string), everything is working as expected.

Either way, this did it! Thank you so much!

Figured I’d do the pre-setup before I went to bed, so I’ve run the grep command and put the board_name from that output such that the patch now reads thus:

  boot.kernelPatches = [{
      name = "acpi quirk";
      patch = pkgs.writeText "acpi.patch" '' 
diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c 
index 297a88587031..655332f3a5da 100644 
--- a/drivers/acpi/resource.c 
+++ b/drivers/acpi/resource.c 
@@ -524,6 +524,12 @@ static const struct dmi_system_id pcspecialist_laptop[] = {
                        DMI_MATCH(DMI_BOARD_NAME, "GM6BG0Q"), 
                }, 
        }, 
+       { 
+               /* Infinity E15-5A165-BM */ 
+               .matches = { 
+                       DMI_MATCH(DMI_BOARD_NAME, "GM5RG1E0009COM"), 
+               }, 
+       }, 
        { } 
 }; 
'';
  }];

I’ll report back with the results when I’m able.