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Message-ID: <CAOMZO5CXRaR-dd4XT28qiZkCxd9iUdZr0RzwHixjeQ2L4RG2kQ@mail.gmail.com> Date: Wed, 7 Oct 2015 00:07:30 -0300 From: Fabio Estevam <festevam@...il.com> To: Pushpal Sidhu <psidhu@...eworks.com> Cc: DRI mailing list <dri-devel@...ts.freedesktop.org>, linux-kernel <linux-kernel@...r.kernel.org>, "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org> Subject: Re: i.mx6 video out in mainline On Tue, Oct 6, 2015 at 8:02 PM, Pushpal Sidhu <psidhu@...eworks.com> wrote: > When I took your patch and adapted it for imx6qdl-gw54xx.dtsi, I found > that HDMI video out was slightly shifted to the left and resolution > remained at 1024x768p. > > I also found that when I disabled DRM_IMX_LDB, HDMI out stopped > working altogether, though if I stripped out the ldb section in device > tree, the resolution comes back at 1080p (regardless of setting > DRM_IMX_LDB or not). There is definitely some strange interdependency > between lvds and hdmi here. Do you have an idea of where I should > start looking for this problem? I thought we have already fixed that. Does this issue still happen with 4.3-rc4? I would suggest turning on debug in drivers/gpu/ipu-v3/ipu-di.c and see the DI frequencies you are getting for the HDMI and LDB ports. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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