From mboxrd@z Thu Jan 1 00:00:00 1970 From: Laurent Pinchart Date: Sun, 13 Dec 2015 19:45:43 +0000 Subject: Re: Rcar Gen2: DU: Bootlogs Error and show image error Message-Id: <1996821.PsnRA3cm66@avalon> List-Id: References: <564ECE30.9000206@jinso.co.jp> In-Reply-To: <564ECE30.9000206@jinso.co.jp> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-sh@vger.kernel.org Hello Cao Minh-san, (this is a bit of a stupid question, and I apologize for that, but what is the proper way to address you, Cao-san, Cao Minh-san, Hiep-san, or something else ?) On Thursday 10 December 2015 10:43:18 Cao Minh Hiep wrote: > > >>> Yes, CONFIG_DRM_I2C_ADV7511=y has already enabled in default config at > >>> v4.4-rc2. > >>> I also have enabled CONFIG_DRM_SHMOBILE and CONFIG_FB_SH_MOBILE_HDMI > >>> then test. > >>> But It has nothing change. > >>> Is there other configuration or reason could we think? > >> > >> Does this problem happen on your board? > >> If not, Could you please send me your config file?. > > > > Sorry for the delay, I wanted to retry on my Koelsch board before > > replying. > > > > The probe deferral error (-517) you're seeing is normal, it comes from the > > DU being probed before its dependencies. Probe is deferred and retried, > > and finally succeeds as shown by > > > > [drm] Initialized rcar-du 1.0.0 20130110 on minor 0 > > > > With a stock v4.4-rc2 kernel I get the same result, and I can then use the > > HDMI output without any issue with the modetest application. > > > > I've attached the kernel configuration I used for testing, just in case. > > Thanks, I have changed our HDMI display device(Old one -> other newer one), > and then I could show a image on the display successfully. This test is > on Koelsch board. > But I found that, before showing the image on HDMI display, > I have to enable CONFIG_FRAMEBUFFER_CONSOLE =y or > run a command something like "fbset -xres 640 -yres 480 -laced 0", in > order to clear the first screen. > > On Lager, with the same test method, I could show a image on RGB display > very well, > but when I showed image on HDMI display, The image showed on display > looks bad as attached picture. > The attached picture: HDMI-Display-image-showed-from-Lager.jpg > > Please have a look and show me what i have to do! I'll try to reproduce that. Could you please send me the image file and the exact test procedure ? -- Regards, Laurent Pinchart