From mboxrd@z Thu Jan 1 00:00:00 1970 From: Theodore Ts'o Subject: Re: WARNING: /usr/projects/linux/linux/drivers/gpu/drm/i915/intel_pm.c:6585 intel_display_power_put+0x4b/0x116 [i915]() Date: Sun, 7 Dec 2014 23:08:29 -0500 Message-ID: <20141208040829.GA5142@thunk.org> References: <20140902040527.GA5508@thunk.org> <20141208003433.GA3353@thunk.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from imap.thunk.org (imap.thunk.org [74.207.234.97]) by gabe.freedesktop.org (Postfix) with ESMTP id A50186E1BB for ; Sun, 7 Dec 2014 20:08:36 -0800 (PST) Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Dave Airlie Cc: Jani Nikula , Daniel Vetter , LKML , dri-devel List-Id: dri-devel@lists.freedesktop.org T24gTW9uLCBEZWMgMDgsIDIwMTQgYXQgMTI6MzI6MDFQTSArMTAwMCwgRGF2ZSBBaXJsaWUgd3Jv dGU6Cj4gCj4gSSBzdXNwZWN0IGEgbG90IG9mIHRoZSBwcm9ibGVtcyBhcmUganVzdCB0aGF0IHhm Y2UgaXNuJ3Qgc3VmZmljaWVudGx5IGhhbmRsaW5nCj4gcmFuZHIgZXZlbnRzLCBhbmQgaXQgaXMg Z2V0dGluZyBvdXQgb2Ygc3luYywgaXQgaXMgbGlrZSBob3RwbHVnIG5ldHdvcmtpbmcKPiBiZWZv cmUgTmV0d29ya01hbmFnZXIgZXRjLgoKWWVzLCBJJ3ZlIHNlZW4gdGhpcyBvbiBYRkNFIDQuMTEg KGluIFVidW50dSksIGFsdGhvdWdoIEkgaGFlbid0IHNlZW4KaXQgaW4gWEZDRSA0LjEwIChpbiBE ZWJpYW4pLiAgSW4gNC4xMSwgd2hlbiB4ZmNlIGdldHMgb3V0IG9mIHN5bmMsCnhyYW5kciAtLWF1 dG8gd2lsbCBhbGxvdyBtZSB0byBlbmFibGUgdGhlIGRpc3BsYXksIGV2ZW4gd2hlbgp4ZmNlNC1k aXNwbGF5LXNldHRpbmdzIGRvZXMgbm90LgoKSG93ZXZlciwgb24gbXkgVDU0MHAgd2l0aCB0aGUg bW9uaXRvcnMgY29ubmVjdGVkIHZpYSB0aGUgZG9jaywgd2hpY2gKaXMgdGhlIHByb2JsZW0gSSB3 YXMgZGVzY3JpYmluZyBoZXJlLCB4cmFuZHIgLS1hdXRvIGRvZXMgKm5vdCogZml4CnRoaW5ncyB1 cC4gIFNvIEkgdGhpbmsgaXQncyBhIGRpZmZlcmVudCBwcm9ibGVtLCBzaW5jZSBJIGNhbiBzZWUg dGhpcwpwcm9ibGVtIGV2ZW4gaWYgSSBkb24ndCB1c2UgeGZjZTQtZGlzcGxheS1zZXR0aW5ncywg YW5kIGp1c3QgdXNlCnhyYW5kciBkaXJlY3RseS4KCgkJCQkJCS0gVGVkCl9fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmRyaS1kZXZlbCBtYWlsaW5nIGxpc3QK ZHJpLWRldmVsQGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwOi8vbGlzdHMuZnJlZWRlc2t0b3Au b3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg== From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753782AbaLHEIi (ORCPT ); Sun, 7 Dec 2014 23:08:38 -0500 Received: from imap.thunk.org ([74.207.234.97]:44575 "EHLO imap.thunk.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752005AbaLHEIh (ORCPT ); Sun, 7 Dec 2014 23:08:37 -0500 Date: Sun, 7 Dec 2014 23:08:29 -0500 From: "Theodore Ts'o" To: Dave Airlie Cc: Daniel Vetter , dri-devel , LKML , Jani Nikula Subject: Re: WARNING: /usr/projects/linux/linux/drivers/gpu/drm/i915/intel_pm.c:6585 intel_display_power_put+0x4b/0x116 [i915]() Message-ID: <20141208040829.GA5142@thunk.org> Mail-Followup-To: Theodore Ts'o , Dave Airlie , Daniel Vetter , dri-devel , LKML , Jani Nikula References: <20140902040527.GA5508@thunk.org> <20141208003433.GA3353@thunk.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: tytso@thunk.org X-SA-Exim-Scanned: No (on imap.thunk.org); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Dec 08, 2014 at 12:32:01PM +1000, Dave Airlie wrote: > > I suspect a lot of the problems are just that xfce isn't sufficiently handling > randr events, and it is getting out of sync, it is like hotplug networking > before NetworkManager etc. Yes, I've seen this on XFCE 4.11 (in Ubuntu), although I haen't seen it in XFCE 4.10 (in Debian). In 4.11, when xfce gets out of sync, xrandr --auto will allow me to enable the display, even when xfce4-display-settings does not. However, on my T540p with the monitors connected via the dock, which is the problem I was describing here, xrandr --auto does *not* fix things up. So I think it's a different problem, since I can see this problem even if I don't use xfce4-display-settings, and just use xrandr directly. - Ted