From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tino Keitel Subject: Suspend hangs since 2.6.34 Date: Wed, 9 Jun 2010 19:53:56 +0200 Message-ID: <20100609175356.GA17332@x61.home> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org To: intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org List-Id: intel-gfx@lists.freedesktop.org Hi, as of kernel 2.6.34 I sometimes get a strange hang during suspend to RAM. After echo mem > /sys/power/state, the suspend script hangs, Xorg eats 100% CPU, and the desktop is frozen. I can kill the script and the computer will then suspend and resume fine. The kernel log shows nothing interesting when the hang happens: usblp0: removed usbcore: deregistering interface driver dvb_usb_vp7045 dvb-usb: Twinhan USB2.0 DVB-T receiver (TwinhanDTV Alpha/MagicBox II) successfully deinitialized and disconnected. PM: Syncing filesystems ... done. Is this a known problem? I had rock stable suspend with 2.3.33.x. The computer is a Mac mini Core2 Duo with i945 graphics. I use KMS. I will compile a kernel with suspend debug to get more information if the hang happens next time. Regards, Tino