From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753354AbbDBLOD (ORCPT ); Thu, 2 Apr 2015 07:14:03 -0400 Received: from isrv.corpit.ru ([86.62.121.231]:36341 "EHLO isrv.corpit.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751469AbbDBLLI (ORCPT ); Thu, 2 Apr 2015 07:11:08 -0400 Message-ID: <551D23CA.8080703@msgid.tls.msk.ru> Date: Thu, 02 Apr 2015 14:11:06 +0300 From: Michael Tokarev Organization: Telecom Service, JSC User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.5.0 MIME-Version: 1.0 To: One Thousand Gnomes CC: Linux-kernel , dri-devel@lists.freedesktop.org Subject: Re: screen goes blank when loading gma500_gfx (atom D2500) References: <52F68BEF.5030305@msgid.tls.msk.ru> <20140210104431.63f1a754@alan.etchedpixels.co.uk> <52FFB1BE.8060408@msgid.tls.msk.ru> <533FBB96.5010602@msgid.tls.msk.ru> <53E1024A.2040309@msgid.tls.msk.ru> <53E1033E.8060605@msgid.tls.msk.ru> <550AAE69.8060502@msgid.tls.msk.ru> <20150319115641.61c4a53a@lxorguk.ukuu.org.uk> In-Reply-To: <20150319115641.61c4a53a@lxorguk.ukuu.org.uk> OpenPGP: id=804465C5 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 19.03.2015 14:56, One Thousand Gnomes wrote: > On Thu, 19 Mar 2015 14:09:29 +0300 > Michael Tokarev wrote: > >> Half a year passed since my first email in this thread, and current kernels >> (4.0-tobe) still does not work properly. Meanwhile, I found this thread: >> http://www.linuxquestions.org/questions/slackware-installation-40/black-screen-on-intel-desktopboard-d2500cc-4175503983/ >> which seems to help. I wonder where they got these boot params from... >> > > Its one of the standard suggestions for dealing with wonky DRM I think. > > If that makes the difference on your box can you send me a dmidecode of > it, and I'll see if we can at least teach the driver that the 2500CC > needs LVDS enabled regardless of what the BIOS reports. Ok. actually this is not so simple. Yes, LVDS:d makes a difference. Namely, it enables monitor connected to VGA-0 to function. But once I plug in a digital monitor (DVI-0), screen goes blank when loading the module again, and this time, it does not matter whenever I specify any video= options (trying to disable any combinations of listed adaptors), screen is always blank. So basically the thing is still unusable. Because d-sub connection isn't stable (picture "trembles" depending on the cable and environment conditions), while digital option does not work. In bios, there's an option to ENable LVDS (it is disabled by default) and once enabled, to make it primary or secondary (with either automatically or manually choosen secondary/primary, being d-sub or dvi). When I enable LVDS with any other monitor in bios, the thing does not work again, the same way (screen goes blank once the module is loaded), but now d-sub/vga monitor does not work too. Ouf of curiocity I tried to run windows7 on this machine. Apparently it works with dvi monitor just fine and supports configuration with 2 monitors. Maybe they have some quirks in the drivers, I dunno... Thanks, /mjt From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Tokarev Subject: Re: screen goes blank when loading gma500_gfx (atom D2500) Date: Thu, 02 Apr 2015 14:11:06 +0300 Message-ID: <551D23CA.8080703@msgid.tls.msk.ru> References: <52F68BEF.5030305@msgid.tls.msk.ru> <20140210104431.63f1a754@alan.etchedpixels.co.uk> <52FFB1BE.8060408@msgid.tls.msk.ru> <533FBB96.5010602@msgid.tls.msk.ru> <53E1024A.2040309@msgid.tls.msk.ru> <53E1033E.8060605@msgid.tls.msk.ru> <550AAE69.8060502@msgid.tls.msk.ru> <20150319115641.61c4a53a@lxorguk.ukuu.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from isrv.corpit.ru (isrv.corpit.ru [86.62.121.231]) by gabe.freedesktop.org (Postfix) with ESMTP id 0132F6E9DD for ; Thu, 2 Apr 2015 04:11:10 -0700 (PDT) In-Reply-To: <20150319115641.61c4a53a@lxorguk.ukuu.org.uk> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: One Thousand Gnomes Cc: Linux-kernel , dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org MTkuMDMuMjAxNSAxNDo1NiwgT25lIFRob3VzYW5kIEdub21lcyB3cm90ZToKPiBPbiBUaHUsIDE5 IE1hciAyMDE1IDE0OjA5OjI5ICswMzAwCj4gTWljaGFlbCBUb2thcmV2IDxtanRAdGxzLm1zay5y dT4gd3JvdGU6Cj4gCj4+IEhhbGYgYSB5ZWFyIHBhc3NlZCBzaW5jZSBteSBmaXJzdCBlbWFpbCBp biB0aGlzIHRocmVhZCwgYW5kIGN1cnJlbnQga2VybmVscwo+PiAoNC4wLXRvYmUpIHN0aWxsIGRv ZXMgbm90IHdvcmsgcHJvcGVybHkuICBNZWFud2hpbGUsIEkgZm91bmQgdGhpcyB0aHJlYWQ6Cj4+ IGh0dHA6Ly93d3cubGludXhxdWVzdGlvbnMub3JnL3F1ZXN0aW9ucy9zbGFja3dhcmUtaW5zdGFs bGF0aW9uLTQwL2JsYWNrLXNjcmVlbi1vbi1pbnRlbC1kZXNrdG9wYm9hcmQtZDI1MDBjYy00MTc1 NTAzOTgzLwo+PiB3aGljaCBzZWVtcyB0byBoZWxwLiAgSSB3b25kZXIgd2hlcmUgdGhleSBnb3Qg dGhlc2UgYm9vdCBwYXJhbXMgZnJvbS4uLgo+Pgo+IAo+IEl0cyBvbmUgb2YgdGhlIHN0YW5kYXJk IHN1Z2dlc3Rpb25zIGZvciBkZWFsaW5nIHdpdGggd29ua3kgRFJNIEkgdGhpbmsuCj4gCj4gSWYg dGhhdCBtYWtlcyB0aGUgZGlmZmVyZW5jZSBvbiB5b3VyIGJveCBjYW4geW91IHNlbmQgbWUgYSBk bWlkZWNvZGUgb2YKPiBpdCwgYW5kIEknbGwgc2VlIGlmIHdlIGNhbiBhdCBsZWFzdCB0ZWFjaCB0 aGUgZHJpdmVyIHRoYXQgdGhlIDI1MDBDQwo+IG5lZWRzIExWRFMgZW5hYmxlZCByZWdhcmRsZXNz IG9mIHdoYXQgdGhlIEJJT1MgcmVwb3J0cy4KCk9rLiBhY3R1YWxseSB0aGlzIGlzIG5vdCBzbyBz aW1wbGUuCgpZZXMsIExWRFM6ZCBtYWtlcyBhIGRpZmZlcmVuY2UuICBOYW1lbHksIGl0IGVuYWJs ZXMgbW9uaXRvciBjb25uZWN0ZWQgdG8KVkdBLTAgdG8gZnVuY3Rpb24uCgpCdXQgb25jZSBJIHBs dWcgaW4gYSBkaWdpdGFsIG1vbml0b3IgKERWSS0wKSwgc2NyZWVuIGdvZXMgYmxhbmsgd2hlbiBs b2FkaW5nCnRoZSBtb2R1bGUgYWdhaW4sIGFuZCB0aGlzIHRpbWUsIGl0IGRvZXMgbm90IG1hdHRl ciB3aGVuZXZlciBJIHNwZWNpZnkgYW55CnZpZGVvPSBvcHRpb25zICh0cnlpbmcgdG8gZGlzYWJs ZSBhbnkgY29tYmluYXRpb25zIG9mIGxpc3RlZCBhZGFwdG9ycyksCnNjcmVlbiBpcyBhbHdheXMg YmxhbmsuCgpTbyBiYXNpY2FsbHkgdGhlIHRoaW5nIGlzIHN0aWxsIHVudXNhYmxlLiAgQmVjYXVz ZSBkLXN1YiBjb25uZWN0aW9uIGlzbid0CnN0YWJsZSAocGljdHVyZSAidHJlbWJsZXMiIGRlcGVu ZGluZyBvbiB0aGUgY2FibGUgYW5kIGVudmlyb25tZW50IGNvbmRpdGlvbnMpLAp3aGlsZSBkaWdp dGFsIG9wdGlvbiBkb2VzIG5vdCB3b3JrLgoKSW4gYmlvcywgdGhlcmUncyBhbiBvcHRpb24gdG8g RU5hYmxlIExWRFMgKGl0IGlzIGRpc2FibGVkIGJ5IGRlZmF1bHQpIGFuZApvbmNlIGVuYWJsZWQs IHRvIG1ha2UgaXQgcHJpbWFyeSBvciBzZWNvbmRhcnkgKHdpdGggZWl0aGVyIGF1dG9tYXRpY2Fs bHkKb3IgbWFudWFsbHkgY2hvb3NlbiBzZWNvbmRhcnkvcHJpbWFyeSwgYmVpbmcgZC1zdWIgb3Ig ZHZpKS4gIFdoZW4gSSBlbmFibGUKTFZEUyB3aXRoIGFueSBvdGhlciBtb25pdG9yIGluIGJpb3Ms IHRoZSB0aGluZyBkb2VzIG5vdCB3b3JrIGFnYWluLCB0aGUKc2FtZSB3YXkgKHNjcmVlbiBnb2Vz IGJsYW5rIG9uY2UgdGhlIG1vZHVsZSBpcyBsb2FkZWQpLCBidXQgbm93IGQtc3ViL3ZnYQptb25p dG9yIGRvZXMgbm90IHdvcmsgdG9vLgoKT3VmIG9mIGN1cmlvY2l0eSBJIHRyaWVkIHRvIHJ1biB3 aW5kb3dzNyBvbiB0aGlzIG1hY2hpbmUuICBBcHBhcmVudGx5IGl0CndvcmtzIHdpdGggZHZpIG1v bml0b3IganVzdCBmaW5lIGFuZCBzdXBwb3J0cyBjb25maWd1cmF0aW9uIHdpdGggMiBtb25pdG9y cy4KTWF5YmUgdGhleSBoYXZlIHNvbWUgcXVpcmtzIGluIHRoZSBkcml2ZXJzLCBJIGR1bm5vLi4u CgpUaGFua3MsCgovbWp0Cl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fCmRyaS1kZXZlbCBtYWlsaW5nIGxpc3QKZHJpLWRldmVsQGxpc3RzLmZyZWVkZXNrdG9w Lm9yZwpodHRwOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRl dmVsCg==