From mboxrd@z Thu Jan 1 00:00:00 1970 From: wferi Subject: Suspend to RAM freeze with kernel modesetting Date: Thu, 08 Oct 2009 03:40:34 +0200 Message-ID: <7ff4351d91a63843e586e595d0c5a5d5@niif.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Return-path: Received: from rs14.lvs.iif.hu ([193.225.14.164]:52831 "EHLO rs14.lvs.iif.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754858AbZJHBr4 (ORCPT ); Wed, 7 Oct 2009 21:47:56 -0400 Received: from lipton.aai.niif.hu (HELO testmail.iif.hu) ([193.225.14.195]) (envelope-sender ) by mail.iif.hu (qmail-ldap-1.03) with SMTP for ; 8 Oct 2009 03:40:34 +0200 Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: linux-acpi@vger.kernel.org Hi ACPI folks, I'd like to solicit your opinion on the https://bugs.freedesktop.org/show_bug.cgi?id=22126 issue. In short, if I load the Intel graphics driver with kernel modesetting enabled, my ThinkPad R50e won't suspend to RAM anymore, it freezes instead (ie. does not enter S3). Tracing seems to show that the freeze happens in a particular line of drivers/acpi/acpica/hwsleep.c: /* Run the _PTS method */ status = acpi_evaluate_object(NULL, METHOD_NAME__PTS, &arg_list, NULL); in acpi_enter_sleep_state_prep, as described in the bug report. Can anybody provide a clue why this happens? Suspend to disk works invariably, just like suspend to RAM until I enable the kernel modesetting by a module option. Please Cc me or the bug report, I'm not subscribed to linux-acpi. Thanks, Feri.