On Wed, 12 Feb 2020 10:37:30 +0100, <lucien_...@compal.com> wrote: > > Hi Takashi > > Sorry to bother you again, during this period I do some experiment then issue > may be fixed by my local patch, but I am not sure, however may I have your > suggestion if you are available. > I put snd_hda_codec_read and snd_hda_codec_set_power_to_all ahead then add > debug log in function haswell_verify_D0 I found my changes cause cvt_nid and > nid could get "power state: 1" every single time after re-plug type-c cable > then playing music, you can see flash_once_fixed_messages in details. But > without my patch which nid gets "power state: 0" and external type-c monitor > flashes once after playing music. Assume my finding is right, do we have > chance to submit code to fix issue? Thanks.
Is the issue reproduced with the latest upstream code (or at least 5.4.y stable)? Then yeah, we need to take a deeper look. thanks, Takashi > > With patch > 2020-02-12T00:58:27.496016-08:00 ERR kernel: [ 47.729823] @@@ cvt_nid power > state: 1 > 2020-02-12T00:58:27.496024-08:00 ERR kernel: [ 47.729883] @@@ nid power > state: 1 > > Without patch > 2020-02-12T00:55:36.795016-08:00 ERR kernel: [ 125.047502] @@@ cvt_nid power > state: 1 > 2020-02-12T00:55:36.795026-08:00 ERR kernel: [ 125.047565] @@@ nid power > state: 0 > > -----Original Message----- > From: Takashi Iwai <ti...@suse.de> > Sent: Wednesday, January 8, 2020 2:18 PM > To: Kao. Lucien (TPE) <lucien_...@compal.com> > Cc: nathan.d.ciob...@linux.intel.com; Cheng. AJ (TPE) <aj_ch...@compal.com>; > intel-gfx@lists.freedesktop.org; alsa-de...@alsa-project.org; Wang. CindyXT > (TPE) <cindyxt_w...@compal.com>; Ye. Nelson (TPE) <nelson...@compal.com>; > Yap. Shane (TPE) <shane_...@compal.com>; Tseng. Evan (TPE) > <evan_ts...@compal.com> > Subject: Re: [alsa-devel] USB Type-C monitor flashes once when play a video > file after unplug and re-plug the monitor > > On Wed, 08 Jan 2020 04:07:17 +0100, > <lucien_...@compal.com> wrote: > > > > Hi Takashi > > > > Is the attachment what you suspect? That merged to our kernel v4.19 > > already, have any suggestions? Thanks. > > Then I have no concrete idea. It might be some other changes in HDMI codec > driver or it might be a fix in i915 graphics side, or even thunderbolt or > whatever, too... > > Takashi > > > > > -----Original Message----- > > From: Takashi Iwai <ti...@suse.de> > > Sent: Wednesday, January 8, 2020 2:57 AM > > To: Nathan Ciobanu <nathan.d.ciob...@linux.intel.com> > > Cc: Kao. Lucien (TPE) <lucien_...@compal.com>; Cheng. AJ (TPE) > > <aj_ch...@compal.com>; intel-gfx@lists.freedesktop.org; > > alsa-de...@alsa-project.org; Wang. CindyXT (TPE) > > <cindyxt_w...@compal.com>; Ye. Nelson (TPE) <nelson...@compal.com>; > > Yap. Shane (TPE) <shane_...@compal.com>; Tseng. Evan (TPE) > > <evan_ts...@compal.com> > > Subject: Re: [alsa-devel] USB Type-C monitor flashes once when play a > > video file after unplug and re-plug the monitor > > > > On Tue, 07 Jan 2020 18:24:57 +0100, > > Nathan Ciobanu wrote: > > > > > > On Mon, Jan 06, 2020 at 08:08:04AM +0000, lucien_...@compal.com wrote: > > > > Hi Takashi > > > > > > > > We verified on Ubuntu 19.10 with kernel 5.4.0.0-050400-generic (please > > > > refer to attachment), the result is positive which symptom doesn't > > > > happen anymore once I played music or video sound output through Dell > > > > S2718D Type-C monitor. It seems had some fix in latest kernel. > > > > > > Takashi, can you point to the patch series you suspect may have fixed > > > this issue? > > > > The first suspect would be > > 2756d9143aa517b97961e85412882b8ce31371a6 > > ALSA: hda - Fix intermittent CORB/RIRB stall on Intel chips > > > > Takashi > > > > > > > > Thanks, > > > Nathan > > > > > > > > Thanks. > > > > > > > > > > > > -----Original Message----- > > > > From: Takashi Iwai <ti...@suse.de> > > > > Sent: Friday, January 3, 2020 5:16 PM > > > > To: Cheng. AJ (TPE) <aj_ch...@compal.com> > > > > Cc: intel-gfx@lists.freedesktop.org; alsa-de...@alsa-project.org; > > > > nathan.d.ciob...@linux.intel.com; Wang. CindyXT (TPE) > > > > <cindyxt_w...@compal.com>; Ye. Nelson (TPE) > > > > <nelson...@compal.com>; Yap. Shane (TPE) <shane_...@compal.com>; > > > > Kao. Lucien (TPE) <lucien_...@compal.com>; Tseng. Evan (TPE) > > > > <evan_ts...@compal.com> > > > > Subject: Re: [alsa-devel] USB Type-C monitor flashes once when > > > > play a video file after unplug and re-plug the monitor > > > > > > > > On Fri, 03 Jan 2020 02:57:03 +0100, <aj_ch...@compal.com> wrote: > > > > > > > > > > Hi Sirs, > > > > > Here is chromebook SW team from Compal. > > > > > As the mail title, we hit issue that the external monitor will flash > > > > > once when play video after hot pluging. > > > > > We can reproduce not only on chromebook but also ubuntu 16.04. > > > > > There has higher failure rate with Dell Solomon dock and Dell S2718D > > > > > monitor. > > > > > > > > > > We found adding the delay in "sound/pci/hda/patch_hdmi.c " can > > > > > fix this issue.(as the attachment) May need your help to review and > > > > > advice. Thanks. > > > > > > > > > > Here is the issue number in gitlab for more detail. > > > > > https://gitlab.freedesktop.org/drm/intel/issues/318 > > > > > > > > Could you check whether it still happens with the latest upstream > > > > kernel, at least 5.4.y, if it wasn't tested yet? > > > > > > > > I don't want to put a long delay just because of random reason unless > > > > it's really mandatory. I'm wondering whether the recent write-sync > > > > change improves the situation, so let's check the recent code. > > > > > > > > > > > > thanks, > > > > > > > > Takashi > > > > > > > > > > > > > > > > > > > > > > > > AJ Cheng > > > > > NID/NID1 > > > > > e-mail: aj_ch...@compal.com<mailto:aj_ch...@compal.com> > > > > > Tel: +886-2-8797-8599 ext. 17561 Mobile : +886-932827829 COMPAL > > > > > Electronics, Inc. > > > > > > > > > > [2 flash_once.diff <application/octet-stream (base64)>] > > > > > > > > > > _______________________________________________ > > > > > Alsa-devel mailing list > > > > > alsa-de...@alsa-project.org > > > > > https://mailman.alsa-project.org/mailman/listinfo/alsa-devel > > > > > > > > > > ====================================================================== > > ======== > > ================================= > > This message may contain information which is private, privileged or > > confidential of Compal Electronics, Inc. > > If you are not the intended recipient of this message, please notify > > the sender and destroy/delete the message. > > Any review, retransmission, dissemination or other use of, or taking > > of any action in reliance upon this information, by persons or > > entities other than the intended recipient is prohibited. > > ====================================================================== > > ======== > > ================================= > > > > > > [1.2 <text/plain; us-ascii (base64)>] > > > > [2 0001-UPSTREAM-ALSA-hda-Fix-intermittent-CORB-RIRB-stall-o.patch > > <application/octet-stream (base64)>] > > > > ============================================================================== > ================================= > This message may contain information which is private, privileged or > confidential of Compal Electronics, Inc. > If you are not the intended recipient of this message, please notify the > sender and destroy/delete the message. > Any review, retransmission, dissemination or other use of, or taking of any > action in reliance upon this information, > by persons or entities other than the intended recipient is prohibited. > ============================================================================== > ================================= > > > [1.2 <text/plain; us-ascii (base64)>] > > [2 flash_once_fixed_messages <application/octet-stream (base64)>] > > [3 flash_once_present_messages <application/octet-stream (base64)>] > > [4 flash_once.diff <application/octet-stream (base64)>] > _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
