From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jani Nikula Subject: Re: [BUG] i915 HDMI connector status is connected after disconnection Date: Thu, 05 Jul 2018 12:37:55 +0300 Message-ID: <87bmbmowek.fsf@intel.com> References: <87efgioy7i.fsf@intel.com> <153078146934.15734.3696654838092752426@skylake-alporthouse-com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <153078146934.15734.3696654838092752426@skylake-alporthouse-com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Chris Wilson , Chris Chiu , David Airlie , joonas.lahtinen@linux.intel.com, rodrigo.vivi@intel.com Cc: intel-gfx@lists.freedesktop.org, Linux Upstreaming Team , Linux Kernel , dri-devel List-Id: dri-devel@lists.freedesktop.org T24gVGh1LCAwNSBKdWwgMjAxOCwgQ2hyaXMgV2lsc29uIDxjaHJpc0BjaHJpcy13aWxzb24uY28u dWs+IHdyb3RlOgo+IFF1b3RpbmcgSmFuaSBOaWt1bGEgKDIwMTgtMDctMDUgMDk6NTg6NTcpCj4+ IE9uIFRodSwgMDUgSnVsIDIwMTgsIENocmlzIENoaXUgPGNoaXVAZW5kbGVzc20uY29tPiB3cm90 ZToKPj4gPiBIaSwKPj4gPiAgICAgV2UgaGF2ZSBmZXcgQVNVUyBsYXB0b3BzIFg3MDVGRCAoVGhl IG5ldyBXaXNreUxha2UpLCBYNTYwVUQgKGludGVsCj4+ID4gaTUtODI1MFUpLCBYNTMwVU4gKGlu dGVsIGk3LTg1NTBVKSBzaGFyZSB0aGUgc2FtZSBwcm9ibGVtLCB3aGljaCBpcwo+PiA+IHRoZSBI RE1JIGNvbm5lY3RvciBzdGF0dXMgc3RheXMgY29ubmVjdGVkIGV2ZW4gdGhlIEhETUkgY2FibGUg aGFzIGJlZW4KPj4gPiB1bnBsdWdnZWQuIExvb2sgaW50byB0aGUgIi9zeXMvY2xhc3MvZHJtL2Nh cmQwLUhETUktQS0xL3N0YXR1cyIgZm9yCj4+ID4gY2hlY2tpbmcgdGhlIHN0YXR1cyB3aGlsZSBw bHVnL3VucGx1ZyB0aGUgSERNSSwgaXQgc2hvd3MKPj4gPiAiZGlzY29ubmVjdGVkIiBiZWZvcmUg cGx1ZyBpbiBIRE1JIGNhYmxlLCB0aGVuIHN3aXRjaCB0byAiY29ubmVjdGVkIgo+PiA+IGFmdGVy IHBsdWdpbiwgYW5kIHN0aWxsIHN0YXkgImNvbm5lY3RlZCIgYWZ0ZXIgdW5wbHVnLiBUaGlzIHdv dWxkCj4+ID4gY2F1c2UgdGhlIGF1ZGlvIG91dHB1dCBwYXRoIGNhbm5vdCBjb3JyZWN0bHkgc3dp dGNoIGZyb20gSERNSSB0bwo+PiA+IGludGVybmFsIHNwZWFrZXIgYWZ0ZXIgdW5wbHVnZ2luZyB0 aGUgSERNSS4KPj4gPgo+PiA+IEkgdGhlbiB0cnkgdG8gdmVyaWZ5IHdpdGggdGhlIGxhdGVzdCBr ZXJuZWwgNC4xOC4wLXJjMyssIHRoZSBidWcgc3RpbGwKPj4gPiBwcmVzZW50LiBUaGUgZnVsbCAi ZG1lc2ciIGxvZyBpcyBoZXJlLgo+PiA+IGh0dHBzOi8vZ2lzdC5naXRodWIuY29tL21zY2hpdTc3 L2Q3NjFkN2M1Y2YxOTFiNzg2OGQ0ZDc3ODhhZTA4N2YxCj4+ID4KPj4gPiBUaGUgSERNSSBjYWJs ZSBpcyBwbHVnZ2VkIGluIGF0IH4yNnRoIHNlY29uZC4KPj4gPiAiWyAyNi4yMTQzNzFdIFtkcm06 ZHJtX2RldGVjdF9tb25pdG9yX2F1ZGlvIFtkcm1dXSBNb25pdG9yIGhhcyBiYXNpYwo+PiA+IGF1 ZGlvIHN1cHBvcnQiCj4+ID4gdGhlbiB1bnBsdWcgdGhlIEhETUkgYXQgfjczdGggc2Vjb25kLgo+ PiA+ICJbIDczLjMyODM2MV0gW2RybTpkcm1fZGV0ZWN0X21vbml0b3JfYXVkaW8gW2RybV1dIE1v bml0b3IgaGFzIGJhc2ljCj4+ID4gYXVkaW8gc3VwcG9ydCIKPj4gPgo+PiA+IFBsZWFzZSBhZHZp c2Ugd2hhdCBJIGNhbiBkbyB0byBmaXggdGhpcy4gVGhhbmtzCj4+IAo+PiBTZWVtcyByYXRoZXIg b2RkLiBQbGVhc2UgZmlsZSBhIGJ1ZyByZXBvcnQgYXQgWzFdLiBBdHRhY2ggdGhlIGRtZXNnIG9u Cj4+IHRoZSBidWcuIFBsZWFzZSBhdHRhY2ggJ3hyYW5kciAtLXZlcmJvc2UnIG91dHB1dCBiZWZv cmUgYW5kIGFmdGVyCj4+IHVucGx1Z2dpbmcgb24gdGhlIGJ1Zy4KPgo+IE5vdGUgdGhhdCAneHJh bmRyIC0tdmVyYm9zZScgd2lsbCB0cmlnZ2VyIGEgcmVwcm9iZSBvZiB0aGUgZGV2aWNlcywKPiBw YXBlcmluZyBvdmVyIGFueSBtaXNzZWQgcHJvYmUgZm9sbG93aW5nIGhvdHBsdWcuICBJIHdvdWxk IHN1Z2dlc3QKPiBwcmVjZWRpbmcgd2l0aCAneHJhbmRyIC0tY3VycmVudCAtLXZlcmJvc2UnLgo+ Cj4gSWYgYWxsIHlvdSBhcmUgZG9pbmcgaXMgY2hlY2tpbmcgc3RhdHVzLCB5b3UgbmVlZCB0byAn ZWNobyBkZXRlY3QgPgo+IHN0YXR1cycgdG8gdHJpZ2dlciBhIHJlcHJvYmUgYWZ0ZXIgaG90cGx1 Zy4KCkkgd2FzIGN1cmlvdXMgYWJvdXQgdGhlIGxvZ3Mgc2VlbWluZ2x5IGluZGljYXRpbmcgdGhh dCB3ZSBjYW4gcmVhZCB0aGUKRURJRCBldmVuIGFmdGVyIHRoZSB1c2VyIHNheXMgdGhleSd2ZSB1 bnBsdWdnZWQgdGhlIGNhYmxlLiBUaGUgdXBkYXRpbmcKb2Ygc3lzZnMgc3RhdHVzIGF0dHJpYnV0 ZSBpcyBhbm90aGVyIG1hdHRlci4KCkJSLApKYW5pLgoKCi0tIApKYW5pIE5pa3VsYSwgSW50ZWwg T3BlbiBTb3VyY2UgR3JhcGhpY3MgQ2VudGVyCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fCmRyaS1kZXZlbCBtYWlsaW5nIGxpc3QKZHJpLWRldmVsQGxpc3Rz LmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xp c3RpbmZvL2RyaS1kZXZlbAo= From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 512D1C6778C for ; 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d="scan'208";a="69812191" Received: from jnikula-mobl2.fi.intel.com (HELO localhost) ([10.237.72.62]) by fmsmga001.fm.intel.com with ESMTP; 05 Jul 2018 02:38:12 -0700 From: Jani Nikula To: Chris Wilson , Chris Chiu , David Airlie , joonas.lahtinen@linux.intel.com, rodrigo.vivi@intel.com Cc: intel-gfx@lists.freedesktop.org, Linux Upstreaming Team , Linux Kernel , dri-devel Subject: Re: [BUG] i915 HDMI connector status is connected after disconnection In-Reply-To: <153078146934.15734.3696654838092752426@skylake-alporthouse-com> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo References: <87efgioy7i.fsf@intel.com> <153078146934.15734.3696654838092752426@skylake-alporthouse-com> Date: Thu, 05 Jul 2018 12:37:55 +0300 Message-ID: <87bmbmowek.fsf@intel.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 05 Jul 2018, Chris Wilson wrote: > Quoting Jani Nikula (2018-07-05 09:58:57) >> On Thu, 05 Jul 2018, Chris Chiu wrote: >> > Hi, >> > We have few ASUS laptops X705FD (The new WiskyLake), X560UD (intel >> > i5-8250U), X530UN (intel i7-8550U) share the same problem, which is >> > the HDMI connector status stays connected even the HDMI cable has been >> > unplugged. Look into the "/sys/class/drm/card0-HDMI-A-1/status" for >> > checking the status while plug/unplug the HDMI, it shows >> > "disconnected" before plug in HDMI cable, then switch to "connected" >> > after plugin, and still stay "connected" after unplug. This would >> > cause the audio output path cannot correctly switch from HDMI to >> > internal speaker after unplugging the HDMI. >> > >> > I then try to verify with the latest kernel 4.18.0-rc3+, the bug still >> > present. The full "dmesg" log is here. >> > https://gist.github.com/mschiu77/d761d7c5cf191b7868d4d7788ae087f1 >> > >> > The HDMI cable is plugged in at ~26th second. >> > "[ 26.214371] [drm:drm_detect_monitor_audio [drm]] Monitor has basic >> > audio support" >> > then unplug the HDMI at ~73th second. >> > "[ 73.328361] [drm:drm_detect_monitor_audio [drm]] Monitor has basic >> > audio support" >> > >> > Please advise what I can do to fix this. Thanks >> >> Seems rather odd. Please file a bug report at [1]. Attach the dmesg on >> the bug. Please attach 'xrandr --verbose' output before and after >> unplugging on the bug. > > Note that 'xrandr --verbose' will trigger a reprobe of the devices, > papering over any missed probe following hotplug. I would suggest > preceding with 'xrandr --current --verbose'. > > If all you are doing is checking status, you need to 'echo detect > > status' to trigger a reprobe after hotplug. I was curious about the logs seemingly indicating that we can read the EDID even after the user says they've unplugged the cable. The updating of sysfs status attribute is another matter. BR, Jani. -- Jani Nikula, Intel Open Source Graphics Center