From mboxrd@z Thu Jan 1 00:00:00 1970 From: Martin Steigerwald Subject: [REGRESSION][BUG 94241] 4.0-rc2: Blanks screen on hibernation but does not switch off the machine Date: Wed, 04 Mar 2015 11:47:28 +0100 Message-ID: <2102769.qaa7254DPQ@merkaba> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Return-path: Received: from mondschein.lichtvoll.de ([194.150.191.11]:37838 "EHLO mail.lichtvoll.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933123AbbCDKrb (ORCPT ); Wed, 4 Mar 2015 05:47:31 -0500 Received: from merkaba.localnet (unknown [194.150.191.253]) by mail.lichtvoll.de (Postfix) with ESMTPSA id CE75C28E for ; Wed, 4 Mar 2015 11:47:29 +0100 (CET) Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: linux-pm@vger.kernel.org Also reported as: https://bugzilla.kernel.org/show_bug.cgi?id=94241 After I had [1] with 3.18 and 3.19 upto rc7, with 4.0-rc2 I get a different issue: The ThinkPad T520 does not hibernate at all anymore. It blanks the screen, has some disk accesses, but then stays there. It stays on. It even seems to continue to have some disk accesses. But its not possible to switch on the display anymore. I tried the usual Ctrl-Alt-F1 to switch to TTY1 thing. Expected results: It goes to console as I have "no_console_suspend", tells me it will hibernate, gives out the 10% step progress report on saving the image, completes saving the image and switches off. I am back on 3.19-rc7 as I need the machine for work. I do not foresee having time to bisect this at the moment. I may try with kernel 4.0-rc2 again and try to SSH into the machine from a different box. Maybe I can still log in to it in that black screen state. This is on Debian Sid with systemd and the following hardware and software configuration: martin@merkaba:~> phoronix-test-suite system-info Phoronix Test Suite v5.2.1 System Information Hardware: Processor: Intel Core i5-2520M @ 3.20GHz (4 Cores), Motherboard: LENOVO 42433WG, Chipset: Intel 2nd Generation Core Family DRAM, Memory: 16384MB, Disk: 300GB INTEL SSDSA2CW30 + 480GB Crucial_CT480M50, Graphics: Intel HD 3000 (1300MHz), Audio: Intel 6 /C200, Network: Intel 82579LM Gigabit Connection + Intel Centrino Advanced-N 6205 Software: OS: Debian 8.0, Kernel: 3.19.0-rc7-tp520+ (x86_64), Desktop: KDE 4.14.2, Display Server: X Server 1.16.4, Display Driver: intel 2.21.15, OpenGL: 3.3 Mesa 10.4.2, Compiler: GCC 4.9.2, File-System: btrfs, Screen Resolution: 1920x1080 [1] [Bug 86565] New: black screen after resume from hibernation since linux kernel 3.18 https://bugs.freedesktop.org/show_bug.cgi?id=86565 Thanks, -- Martin 'Helios' Steigerwald - http://www.Lichtvoll.de GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7