From mboxrd@z Thu Jan 1 00:00:00 1970 From: Laurent Pinchart Subject: Re: PROBLEM: Asus C201 video mode problems on HDMI hotplug (regression) Date: Mon, 04 Dec 2017 21:06:53 +0200 Message-ID: <1710500.fZbdeDGCTu@avalon> References: <20171128033044.bw4jwps2gya2vbig@aura.draconx.ca> <20171201001146.fezhkf5c3zrbqjlj@aura.draconx.ca> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from galahad.ideasonboard.com (galahad.ideasonboard.com [185.26.127.97]) by gabe.freedesktop.org (Postfix) with ESMTPS id 22A5B6E02F for ; Mon, 4 Dec 2017 19:06:41 +0000 (UTC) In-Reply-To: <20171201001146.fezhkf5c3zrbqjlj@aura.draconx.ca> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Nick Bowler Cc: Laurent Pinchart , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Dave Airlie , Linus Torvalds List-Id: dri-devel@lists.freedesktop.org SGkgTmljaywKCk9uIEZyaWRheSwgMSBEZWNlbWJlciAyMDE3IDAyOjExOjQ2IEVFVCBOaWNrIEJv d2xlciB3cm90ZToKPiBPbiAyMDE3LTExLTI3IDIyOjMwIC0wNTAwLCBOaWNrIEJvd2xlciB3cm90 ZToKPiA+IEEgbm90ZSBhYm91dCB0aGUgdGVzdCBzZXR1cDogSSBoYWQgdG8gcmVtb3ZlIHRoZSB0 ZXN0IGVxdWlwbWVudCBzbyBJCj4gPiBubyBsb25nZXIgaGF2ZSBhbnkgaW5mb3JtYXRpb24gYWJv dXQgdGhlIHZpZGVvIG1vZGUgZnJvbSB0aGUgc2luayBzaWRlCj4gPiAobGlrZSBpbiB0aGUgcGhv dG9zKS4gIFRodXMsIHdpdGggdGhlIGN1cnJlbnQgc2V0dXAsIEkgYW0gdXNpbmcgdGhlCj4gPiBw cmVzZW5zZSBvciBhYnNlbnNlIG9mIGF1ZGlvIHRvIGRldGVybWluZSB3aGV0aGVyIHRoZSBpc3N1 ZSBpcyBwcmVzZW50Cj4gPiBvciBub3QuCj4gPiAKPiA+IFRoZSB0ZXN0IHByb2NlZHVyZSBpczog Ym9vdCB1cCwgc3RhcnQgbXVzaWMsIHRoZW4gaG90cGx1ZyB0aGUgaGRtaSBmb3VyCj4gPiB0aW1l cy4gIElmIHNvdW5kIGlzIGhlYXJkIGFmdGVyIGFsbCBmb3VyIGNvbm5lY3Rpb25zLCBQQVNTOyBv dGhlcndpc2UKPiA+IEZBSUwuCj4gPiAKPiA+ICAtIEkgcmV0ZXN0ZWQgb24gNC4xNS1yYzEgdG8g Y29uZmlybSB0aGF0IHRoZSBpc3N1ZSBpcyBzdGlsbCBwcmVzZW50IChpdAo+ID4gIGlzKS4KPiA+ ICAKPiA+ICAtIEkgYXBwbGllZCB0aGUgZnVuY3Rpb25hbCByZXZlcnQgZnJvbSBlYXJsaWVyIG9u IHRvcCBvZiA0LjE1LXJjMSBhbmQgdGhlCj4gPiAgICBwcm9ibGVtIGlzIGZpeGVkLgo+ID4gIAo+ ID4gIC0gUmV0dXJuaW5nIHRvIDQuMTUtcmMxIGFuZCBhcHBseWluZyBbTGF1cmVudCBQaW5jaGFy dCdzXSBwYXRjaCAtLQo+ID4gICAgdGhlIGlzc3VlIGlzIHByZXNlbnQgYWdhaW4gKG5vIGNoYW5n ZSBpbiBiZWhhdmlvdXIgY29tcGFyZWQgdG8KPiA+ICAgIDQuMTUtcmMxKS4KPiAKPiBBbm90aGVy IGRhdGEgcG9pbnQuLi4gdGhlIGZvbGxvd2luZyBwYXRjaCBhcHBlYXJzIHN1ZmZpY2llbnQgdG8g cmVzdG9yZQo+IHdvcmtpbmcgYmVoYXZpb3VyLgo+IAo+IENoZWVycywKPiAgIE5pY2sKPiAKPiAt LS0KPiAgZHJpdmVycy9ncHUvZHJtL2JyaWRnZS9zeW5vcHN5cy9kdy1oZG1pLmMgfCAxNyAtLS0t LS0tLS0tLS0tLS0tLQo+ICAxIGZpbGUgY2hhbmdlZCwgMTcgZGVsZXRpb25zKC0pCj4gCj4gZGlm ZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9icmlkZ2Uvc3lub3BzeXMvZHctaGRtaS5jCj4gYi9k cml2ZXJzL2dwdS9kcm0vYnJpZGdlL3N5bm9wc3lzL2R3LWhkbWkuYyBpbmRleAo+IGJmMTQyMTRm YTQ2NC4uMzExOGZiZDg0MzNkIDEwMDY0NAo+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9icmlkZ2Uv c3lub3BzeXMvZHctaGRtaS5jCj4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2JyaWRnZS9zeW5vcHN5 cy9kdy1oZG1pLmMKPiBAQCAtMTEwMSw4ICsxMTAxLDYgQEAgc3RhdGljIHZvaWQgZHdfaGRtaV9w aHlfcG93ZXJfb2ZmKHN0cnVjdCBkd19oZG1pCj4gKmhkbWkpIHN0YXRpYyBpbnQgZHdfaGRtaV9w aHlfcG93ZXJfb24oc3RydWN0IGR3X2hkbWkgKmhkbWkpCj4gIHsKPiAgCWNvbnN0IHN0cnVjdCBk d19oZG1pX3BoeV9kYXRhICpwaHkgPSBoZG1pLT5waHkuZGF0YTsKPiAtCXVuc2lnbmVkIGludCBp Owo+IC0JdTggdmFsOwo+IAo+ICAJaWYgKHBoeS0+Z2VuID09IDEpIHsKPiAgCQlkd19oZG1pX3Bo eV9lbmFibGVfcG93ZXJkb3duKGhkbWksIGZhbHNlKTsKPiBAQCAtMTExNiwyMSArMTExNCw2IEBA IHN0YXRpYyBpbnQgZHdfaGRtaV9waHlfcG93ZXJfb24oc3RydWN0IGR3X2hkbWkgKmhkbWkpCj4g ZHdfaGRtaV9waHlfZ2VuMl90eHB3cm9uKGhkbWksIDEpOwo+ICAJZHdfaGRtaV9waHlfZ2VuMl9w ZGRxKGhkbWksIDApOwo+IAo+IC0JLyogV2FpdCBmb3IgUEhZIFBMTCBsb2NrICovCj4gLQlmb3Ig KGkgPSAwOyBpIDwgNTsgKytpKSB7Cj4gLQkJdmFsID0gaGRtaV9yZWFkYihoZG1pLCBIRE1JX1BI WV9TVEFUMCkgJiBIRE1JX1BIWV9UWF9QSFlfTE9DSzsKPiAtCQlpZiAodmFsKQo+IC0JCQlicmVh azsKPiAtCj4gLQkJdXNsZWVwX3JhbmdlKDEwMDAsIDIwMDApOwo+IC0JfQo+IC0KPiAtCWlmICgh dmFsKSB7Cj4gLQkJZGV2X2VycihoZG1pLT5kZXYsICJQSFkgUExMIGZhaWxlZCB0byBsb2NrXG4i KTsKPiAtCQlyZXR1cm4gLUVUSU1FRE9VVDsKPiAtCX0KPiAtCj4gLQlkZXZfZGJnKGhkbWktPmRl diwgIlBIWSBQTEwgbG9ja2VkICV1IGl0ZXJhdGlvbnNcbiIsIGkpOwoKQXMgeW91IHJlcG9ydGVk IHRoYXQgdGhlIFBMTCBsb2NrIGZhaWx1cmUgbWVzc2FnZSBpcyBub3QgcHJpbnRlZCwgdGhlIGZh aWx1cmUgCmNhbiBvbmx5IGNvbWUgZnJvbSBlaXRoZXIgdGhlIGV4dHJhIGRlbGF5IGludHJvZHVj ZWQgYnkgdGhlIGFib3ZlIGxvb3AsIG9yIApmcm9tIHJlYWRpbmcgdGhlIEhETUlfUEhZX1NUQVQw IHJlZ2lzdGVyLgoKSG93IG1hbnkgaXRlcmF0aW9ucyBvZiB0aGUgZm9yIGxvb3AgZXhlY3V0ZSBi ZWZvcmUgdGhlIGNvbmRpdGlvbiBiZWNvbWVzIHRydWUgCj8KCj4gIAlyZXR1cm4gMDsKPiAgfQoK LS0gClJlZ2FyZHMsCgpMYXVyZW50IFBpbmNoYXJ0CgpfX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fXwpkcmktZGV2ZWwgbWFpbGluZyBsaXN0CmRyaS1kZXZlbEBs aXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1h bi9saXN0aW5mby9kcmktZGV2ZWwK