From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Valerio Vanni" Subject: serial console does not wake from S3 suspend Date: Tue, 18 Mar 2014 13:41:30 +0100 Message-ID: Return-path: Received: from plane.gmane.org ([80.91.229.3]:47223 "EHLO plane.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752454AbaCRMpM (ORCPT ); Tue, 18 Mar 2014 08:45:12 -0400 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1WPtOC-00052S-20 for linux-serial@vger.kernel.org; Tue, 18 Mar 2014 13:45:04 +0100 Received: from 88-149-211-113.v4.ngi.it ([88.149.211.113]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 18 Mar 2014 13:45:04 +0100 Received: from valerio by 88-149-211-113.v4.ngi.it with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 18 Mar 2014 13:45:04 +0100 Sender: linux-serial-owner@vger.kernel.org List-Id: linux-serial@vger.kernel.org To: linux-serial@vger.kernel.org When resuming from S3 suspend, serial console starts sending garbage on the serial port. Not continuously, it sends garbage only when in local console prints a text. It stops only when the (sending) machine is shut down, or if some text is sent manually (i.e. with "cat txtfile > /dev/ttyS0"). Full details are here: https://bugzilla.kernel.org/show_bug.cgi?id=69751