Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751943AbaDVFyG (ORCPT ); Tue, 22 Apr 2014 01:54:06 -0400 Received: from mail-qg0-f41.google.com ([209.85.192.41]:60660 "EHLO mail-qg0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751166AbaDVFyD (ORCPT ); Tue, 22 Apr 2014 01:54:03 -0400 MIME-Version: 1.0 In-Reply-To: <20140422023410.GB1709@milliways> References: <20140421203207.GA27025@milliways> <5549363.XIKIYZeGzc@grover> <20140422023106.GA1709@milliways> <20140422023410.GB1709@milliways> Date: Tue, 22 Apr 2014 01:54:01 -0400 Message-ID: Subject: Re: 3.15.0-rc2 radeon HD 7480D [Aruba] blank display From: Alex Deucher To: Ken Moffat Cc: Ed Tomlinson , LKML Content-Type: multipart/mixed; boundary=001a11c123de2d0cc004f79b3ef7 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --001a11c123de2d0cc004f79b3ef7 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On Mon, Apr 21, 2014 at 10:34 PM, Ken Moffat wrot= e: > On Tue, Apr 22, 2014 at 03:31:06AM +0100, Ken Moffat wrote: > > [ resending, somehow lkml dropped out of the Cc. ] > >> On Tue, Apr 22, 2014 at 12:19:40AM +0100, Ken Moffat wrote: >> > On Mon, Apr 21, 2014 at 05:29:27PM -0400, Ed Tomlinson wrote: >> >> > > Ken, >> > > >> > > You might want to try reverting: >> > > >> > > commit 379dfc25e257ffe10eb53b86d2375f7c0f4f33ef >> > > Author: Alex Deucher >> > > Date: Mon Apr 7 10:33:46 2014 -0400 >> > > >> > > drm/radeon/dp: switch to the common i2c over aux code >> > > >> > > Provides a nice cleanup in radeon. >> > > >> > > Signed-off-by: Alex Deucher >> > > Signed-off-by: Christian K=C3=B6nig >> > > >> > > This fixed a similar problem here (see the drm pull thread for rc1) >> > > >> > > Thanks >> > > Ed Tomlinson >> > >> > Tried reverting that from rc2, but it didn't help. Thanks anyway. >> > >> >> Well, I *believed* I had created a patch for that commit, and >> reverted it from -rc2 with patch -R. But I've now bisected through >> drivers/gpu/drm between v3.14.0 and v3.15-rc2 and the bisection >> pointed to that same commit, so I guess I did something wrong. >> >> There were a couple of other issues along the way (mounting nfs >> hung on one commit, startx hung on several of the commits, but I've >> marked those as "good" because I had a display, even if the system >> was not usable). >> >> I've now gone back to linus' tree that I cloned a few hours ago, >> i.e. >> commit c089b229dfdd09d59a11d8bc2344bf8196d575ce >> Merge: 9ac03675010a 0565103d1adb >> Author: Linus Torvalds >> Date: Mon Apr 21 10:05:35 2014 -0700 >> >> Merge branch 'for-linus' of >> git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml >> >> created a branch, and *definitely* reverted >> 379dfc25e257ffe10eb53b86d2375f7c0f4f33ef (using git revert) in that >> branch. And this version works fine. >> >> So belatedly I see that I seem to have the same problem as Ed. Or >> at least that the same commit is causing both our problems. >> >> Alex - do you need any more information from me to help with this ? The attached patch should fix it. Thanks, Alex --001a11c123de2d0cc004f79b3ef7 Content-Type: text/x-patch; charset=US-ASCII; name="0001-drm-radeon-aux-fix-hpd-assignment-for-aux-bus.patch" Content-Disposition: attachment; filename="0001-drm-radeon-aux-fix-hpd-assignment-for-aux-bus.patch" Content-Transfer-Encoding: base64 X-Attachment-Id: f_huas1mvw0 RnJvbSA5Y2Q3NjRmZDU3YmIyYTRlNWY2MThkMGY4YTY0YzgxNTRhODIwNjg4IE1vbiBTZXAgMTcg MDA6MDA6MDAgMjAwMQpGcm9tOiBBbGV4IERldWNoZXIgPGFsZXhhbmRlci5kZXVjaGVyQGFtZC5j b20+CkRhdGU6IFR1ZSwgMjIgQXByIDIwMTQgMDE6NDk6MjggLTA0MDAKU3ViamVjdDogW1BBVENI XSBkcm0vcmFkZW9uL2F1eDogZml4IGhwZCBhc3NpZ25tZW50IGZvciBhdXggYnVzCgpUaGUgaHBk IChob3QgcGx1ZyBkZXRlY3QpIHBpbiBhc3NpZ25tZW50IGdvdCBsb3N0CmluIHRoZSBjb252ZXJz aW9uIHRvIHRvIHRoZSBjb21tb24gaTJjIG92ZXIgYXV4CmNvZGUuICBXaXRob3V0IHRoaXMgaW5m b3JtYXRpb24sIGF1eCB0cmFuc2FjdGlvbnMKZG8gbm90IHdvcmsgcHJvcGVybHkuICBGaXhlcyBE UCBmYWlsdXJlcy4KClNpZ25lZC1vZmYtYnk6IEFsZXggRGV1Y2hlciA8YWxleGFuZGVyLmRldWNo ZXJAYW1kLmNvbT4KLS0tCiBkcml2ZXJzL2dwdS9kcm0vcmFkZW9uL2F0b21iaW9zX2RwLmMgfCAx ICsKIDEgZmlsZSBjaGFuZ2VkLCAxIGluc2VydGlvbigrKQoKZGlmZiAtLWdpdCBhL2RyaXZlcnMv Z3B1L2RybS9yYWRlb24vYXRvbWJpb3NfZHAuYyBiL2RyaXZlcnMvZ3B1L2RybS9yYWRlb24vYXRv bWJpb3NfZHAuYwppbmRleCAxNTkzNjUyLi5iYzAxMTlmIDEwMDY0NAotLS0gYS9kcml2ZXJzL2dw dS9kcm0vcmFkZW9uL2F0b21iaW9zX2RwLmMKKysrIGIvZHJpdmVycy9ncHUvZHJtL3JhZGVvbi9h dG9tYmlvc19kcC5jCkBAIC0yMDksNiArMjA5LDcgQEAgdm9pZCByYWRlb25fZHBfYXV4X2luaXQo c3RydWN0IHJhZGVvbl9jb25uZWN0b3IgKnJhZGVvbl9jb25uZWN0b3IpCiB7CiAJaW50IHJldDsK IAorCXJhZGVvbl9jb25uZWN0b3ItPmRkY19idXMtPnJlYy5ocGQgPSByYWRlb25fY29ubmVjdG9y LT5ocGQuaHBkOwogCXJhZGVvbl9jb25uZWN0b3ItPmRkY19idXMtPmF1eC5kZXYgPSByYWRlb25f Y29ubmVjdG9yLT5iYXNlLmtkZXY7CiAJcmFkZW9uX2Nvbm5lY3Rvci0+ZGRjX2J1cy0+YXV4LnRy YW5zZmVyID0gcmFkZW9uX2RwX2F1eF90cmFuc2ZlcjsKIAlyZXQgPSBkcm1fZHBfYXV4X3JlZ2lz dGVyX2kyY19idXMoJnJhZGVvbl9jb25uZWN0b3ItPmRkY19idXMtPmF1eCk7Ci0tIAoxLjcuMTEu NwoK --001a11c123de2d0cc004f79b3ef7-- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/