From mboxrd@z Thu Jan 1 00:00:00 1970 From: linux@arm.linux.org.uk (Russell King - ARM Linux) Date: Tue, 23 Jun 2015 17:44:43 +0100 Subject: mx6 hdmi resolution behaviour In-Reply-To: References: Message-ID: <20150623164443.GC7557@n2100.arm.linux.org.uk> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tue, Jun 23, 2015 at 01:41:46PM -0300, Fabio Estevam wrote: > Hi, > > On a imx6q-cubox-i running 4.1 kernel I am getting 1920x1080 HDMI > resolution if I boot the board with the HDMI cable connected. > > If I boot it without the HDMI cable and then connect it afterwards, > the resolution goes to only 1024 x 768 and the following IPU message > is seen: If you have no connected connectors, then you get 1024x768: imx-drm display-subsystem: No connectors reported connected with modes [drm] Cannot find any crtc or sizes - going 1024x768 as that's what DRM defaults to when it has no other timing information available. > [ 16.310548] imx-ipuv3 2400000.ipu: videomode adapted for IPU restrictions I don't see this message booting on a Hummingboard with HDMI disconnected. -- FTTC broadband for 0.8mile line: currently at 10.5Mbps down 400kbps up according to speedtest.net.