--- a/drivers/hid/hid-logitech-hidpp.c	2019-09-15 23:19:32.000000000 +0200
+++ b/drivers/hid/hid-logitech-hidpp.c	2019-10-03 14:38:07.108428331 +0200
@@ -3483,7 +3483,7 @@
 static bool hidpp_validate_device(struct hid_device *hdev)
 {
 	return hidpp_validate_report(hdev, REPORT_ID_HIDPP_SHORT,
-				     HIDPP_REPORT_SHORT_LENGTH, false) &&
+				     HIDPP_REPORT_SHORT_LENGTH, true) &&
 	       hidpp_validate_report(hdev, REPORT_ID_HIDPP_LONG,
 				     HIDPP_REPORT_LONG_LENGTH, true);
 }
@@ -3577,7 +3577,10 @@
 	 * Plain USB connections need to actually call start and open
 	 * on the transport driver to allow incoming data.
 	 */
-	ret = hid_hw_start(hdev, 0);
+	if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920)
+		ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+	else
+		ret = hid_hw_start(hdev, 0);
 	if (ret) {
 		hid_err(hdev, "hw start failed\n");
 		goto hid_hw_start_fail;