From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from galahad.ideasonboard.com ([185.26.127.97]:40466 "EHLO galahad.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754148AbcJULU3 (ORCPT ); Fri, 21 Oct 2016 07:20:29 -0400 From: Laurent Pinchart To: Xuan Truong Nguyen Cc: duclm , ryusuke.sakato.bx@renesas.com, kuninori.morimoto.gx@renesas.com, magnus.damm@gmail.com, geert+renesas@glider.be, h-inayoshi@jinso.co.jp, yoshihiro.shimoda.uh@renesas.com, nv-dung@jinso.co.jp, cm-hiep@jinso.co.jp, laurent.pinchart+renesas@ideasonboard.com, horms+renesas@verge.net.au, linux-renesas-soc@vger.kernel.org, wsa@sang-engineering.com Subject: Re: The failure summary report of GEN2 for linux stable v4.8 Date: Fri, 21 Oct 2016 14:20:24 +0300 Message-ID: <5754513.jIbGsJMV7d@avalon> In-Reply-To: References: <57A46D20.7040106@jinso.co.jp> <1557504.I3EyWl6QE0@avalon> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Sender: linux-renesas-soc-owner@vger.kernel.org List-ID: Hi Truong, On Friday 21 Oct 2016 19:53:47 Xuan Truong Nguyen wrote: > Hello Laurent. > > > The document mentions that you have used shmobile_defconfig. However, that > > configuration in v4.8 doesn't enable CONFIG_CMA, which causes at least the > > DU driver to fail probing the device. I thus assume you have modified the > > configuration to enable CMA. The fact that shmobile_defconfig doesn't > > include the uvcvideo driver used by test 14 seems to confirm local > > modifications to the configuration. > > Issue 8 ("Lager: bad image quality when shown on HDMI display") can't be > > reproduced on my system when displaying a test pattern with the modetest > > application. Could you please share more information on how to reproduce > > the problem ? > > We retested this issue No 8 again with the CONFIG_CMA enabled but the > result is the same. you could see it by the error.jpg image in attachments. > the display device used is Panasonic TH-L19C3 (refer the device.jpg). we > also send you my configs file, too (lager_du.config). Thank you for the information, I'll try to reproduce the problem here with your kernel configuration. > just one more thing, with CONFIG_CMA enabled, the driver fails on > probing if we boot the board without the HDMI cable inserted in advance. > we have to insert the cable before booting the board. and not all the > display work with current HDMI driver (as our LG display will not work) > we are using the mainline upstream version 4.8 Interesting, I'll check that too. > if you need any information to debug, please lets us know. Could you please tell me what you're using to test the display ? -- Regards, Laurent Pinchart