From mboxrd@z Thu Jan 1 00:00:00 1970 From: Martin Steigerwald Subject: Re: [REGRESSION] Linux 4.9-rc4: gfx glitches on Intel Sandybridge (was: Re: Linux 4.9-rc4) Date: Mon, 07 Nov 2016 23:53:16 +0100 Message-ID: <8856042.aEeyE2JQOF@merkaba> References: <2766000.XjMLcDtyKU@merkaba> <87k2cf8be7.fsf@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <87k2cf8be7.fsf@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Jani Nikula Cc: Intel Gfx Mailing List , Linus Torvalds , Linux Kernel Mailing List List-Id: intel-gfx@lists.freedesktop.org QW0gTW9udGFnLCA3LiBOb3ZlbWJlciAyMDE2LCAxOTowOTozNiBDRVQgc2NocmllYiBKYW5pIE5p a3VsYToKPiBPbiBNb24sIDA3IE5vdiAyMDE2LCBNYXJ0aW4gU3RlaWdlcndhbGQgPG1hcnRpbkBs aWNodHZvbGwuZGU+IHdyb3RlOgo+ID4gSXQgaXMgYWxzbyB0aGUgc2FtZSBraW5kIG9mIGNvcnJ1 cHRpb25zIGFzIHNob3duIGluCj4gPiAKPiA+IFtCdWcgMTc3NzAxXSB3YXJuaW5nIGluIGludGVs X2RwX2F1eF90cmFuc2Zlcgo+ID4gaHR0cHM6Ly9idWd6aWxsYS5rZXJuZWwub3JnL3Nob3dfYnVn LmNnaT9pZD0xNzc3MDEKPiA+IAo+ID4gSnVzdCBjb21wYXJlCj4gPiAKPiA+IGh0dHBzOi8vYnVn emlsbGEua2VybmVsLm9yZy9hdHRhY2htZW50LmNnaT9pZD0yNDE4MDEKPiA+IAo+ID4gd2l0aAo+ ID4gCj4gPiBodHRwczovL21hcnRpbi1zdGVpZ2Vyd2FsZC5kZS90bXAvZGlzcGxheS1pc3N1ZXMt d2l0aC1rZXJuZWwtNC45LXJjNC5wbmcKPiA+IAo+ID4gCj4gPiBIb3dldmVyIHRoYXQgYnVnIHJl cG9ydCBsaW5rcyB0bwo+ID4gCj4gPiBodHRwczovL2J1Z3MuZnJlZWRlc2t0b3Aub3JnL3Nob3df YnVnLmNnaT9pZD05NzM0NAo+ID4gCj4gPiB5ZXQgdGhlIHBhdGNoIG1lbnRpb25lZCBpbiB0aGVy ZSBkb2VzIG5vdCBmaXggdGhlIGlzc3VlLiBTbyBJIHdvbmRlcgo+ID4gd2hldGhlciBidWcgIzk3 MzQ0IGFuZCBidWcgIzE3NzcwMSBhcmUgcmVhbGx5IHRoZSBzYW1lLgo+IAo+IFRoZXkgYXJlIHRo ZSBzYW1lLCBpdCdzIGp1c3QgdGhhdCAjMTc3NzAxIGNvbmZsYXRlcyB0d28gaXNzdWVzLCBhCj4g d2FybmluZyAodHJhY2tlZCBhdCBmZG8gIzk3MzQ0OSkgYW5kIGEgZ3JhcGhpY3MgY29ycnVwdGlv bi4gVGhlIGxhdHRlcgo+IGFwcGVhcnMgdG8gYmUgaHR0cHM6Ly9idWdzLmZyZWVkZXNrdG9wLm9y Zy9zaG93X2J1Zy5jZ2k/aWQ9OTg0MDIuCj4gCj4gVGhlIGZpeCBoYXMgbm93IGJlZW4gcHVzaGVk IHRvIGRybS1pbnRlbC1maXhlcyBicmFuY2ggb2YKPiBodHRwOi8vY2dpdC5mcmVlZGVza3RvcC5v cmcvZHJtLWludGVsLCB3aGljaCBpcyAtcmM0IHBsdXMgaGFsZiBhIGRvemVuCj4gbGF0ZXN0IGZp eGVzLiBQbGVhc2UgdHJ5IHRoYXQgYW5kIHJlcG9ydCBiYWNrLgoKVGhhbmtzIGZvciBjbGVhcmlu ZyB0aGF0IHVwLCBKYW5pLgoKSSB0aGluayBJIGdldCBhIGNoYW5jZSB0byBjb21waWxlIGZyb20g ZHJtLWludGVsIHRvbW9ycm93IGFuZCB0ZXN0IGl0LiBJZiBpdCAKanVzdCBoYXBwZW5zIG9uIGV4 dGVybmFsIGRpc3BsYXlzIOKAkyBJIGRpZG7CtHQgYWN0dWFsbHkgY2hlY2sgdGhpcyDigJMgSSBj YW4gb25seSAKdGVzdCBpdCBpbiB0aGUgZXZlbmluZy4KIAo+ID4gT2YgY291cnNlIEkgY2FuIHJl cG9ydCBhIGJ1ZyBhdCBmZG8gYXMgd2VsbCwgYnV0IEkgYW0gYSBiaXQgY29uZnVzZWQKPiA+IHdo ZXRoZXIgaXQgbWF5IG5vdCBhbHJlYWR5IGhhdmUgYmVlbiByZXBvcnRlZC4gV2VsbCBJIGhvcGUg SSBnZXQgYQo+ID4gY2hhbmNlIHRvIHJlcG9ydCBpdCB0aGVyZSBhcyB3ZWxsIGFuZCB5b3UgZ2V0 IHRvIGRlY2lkZS4KPiAKPiBJZiBkcm0taW50ZWwtZml4ZXMgZG9lc24ndCBmaXggdGhlIGlzc3Vl IGZvciB5b3UsIHBsZWFzZSBmaWxlIGEgKm5ldyoKPiBidWcgb3ZlciBhdCB0aGUgZnJlZWRlc2t0 b3Aub3JnIGJ1Z3ppbGxhLgoKV2lsbCBkby4KClRoYW5rcywKLS0gCk1hcnRpbgpfX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBs aXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVz a3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752804AbcKGW7v convert rfc822-to-8bit (ORCPT ); Mon, 7 Nov 2016 17:59:51 -0500 Received: from mondschein.lichtvoll.de ([194.150.191.11]:54397 "EHLO mail.lichtvoll.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752600AbcKGW7t (ORCPT ); Mon, 7 Nov 2016 17:59:49 -0500 From: Martin Steigerwald To: Jani Nikula Cc: Linus Torvalds , Intel Gfx Mailing List , Linux Kernel Mailing List Subject: Re: [Intel-gfx] [REGRESSION] Linux 4.9-rc4: gfx glitches on Intel Sandybridge (was: Re: Linux 4.9-rc4) Date: Mon, 07 Nov 2016 23:53:16 +0100 Message-ID: <8856042.aEeyE2JQOF@merkaba> User-Agent: KMail/5.2.3 (Linux/4.8.0-1-amd64; KDE/5.27.0; x86_64; ; ) In-Reply-To: <87k2cf8be7.fsf@intel.com> References: <2766000.XjMLcDtyKU@merkaba> <87k2cf8be7.fsf@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8BIT Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am Montag, 7. November 2016, 19:09:36 CET schrieb Jani Nikula: > On Mon, 07 Nov 2016, Martin Steigerwald wrote: > > It is also the same kind of corruptions as shown in > > > > [Bug 177701] warning in intel_dp_aux_transfer > > https://bugzilla.kernel.org/show_bug.cgi?id=177701 > > > > Just compare > > > > https://bugzilla.kernel.org/attachment.cgi?id=241801 > > > > with > > > > https://martin-steigerwald.de/tmp/display-issues-with-kernel-4.9-rc4.png > > > > > > However that bug report links to > > > > https://bugs.freedesktop.org/show_bug.cgi?id=97344 > > > > yet the patch mentioned in there does not fix the issue. So I wonder > > whether bug #97344 and bug #177701 are really the same. > > They are the same, it's just that #177701 conflates two issues, a > warning (tracked at fdo #973449) and a graphics corruption. The latter > appears to be https://bugs.freedesktop.org/show_bug.cgi?id=98402. > > The fix has now been pushed to drm-intel-fixes branch of > http://cgit.freedesktop.org/drm-intel, which is -rc4 plus half a dozen > latest fixes. Please try that and report back. Thanks for clearing that up, Jani. I think I get a chance to compile from drm-intel tomorrow and test it. If it just happens on external displays – I didn´t actually check this – I can only test it in the evening. > > Of course I can report a bug at fdo as well, but I am a bit confused > > whether it may not already have been reported. Well I hope I get a > > chance to report it there as well and you get to decide. > > If drm-intel-fixes doesn't fix the issue for you, please file a *new* > bug over at the freedesktop.org bugzilla. Will do. Thanks, -- Martin