On Tue, Oct 6, 2015 at 3:16 PM, Fabio Estevam <festevam@xxxxxxxxx> wrote: > On Tue, Oct 6, 2015 at 6:52 PM, Pushpal Sidhu <psidhu@xxxxxxxxxxxxx> wrote: >> Hi All, >> >> I'm attempting to use a standard fb console (using the >> imx6qdl-gw54xx.dtsi), but I find that it only draws to the 1024x768p >> portion of the screen. This is also true when running the userspace >> tool fb-test. > > Looking at imx6qdl-gw54xx.dtsi I see you have a LVDS panel with > 1024x768 resolution. > > I sent a patch that allows LDB and HDMI to work simultaneously: > https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/arch/arm/boot/dts/imx6qdl-sabresd.dtsi?id=d28be499c45e6e16d7a042ce280eb872dc06952b > > Can you try to adapt it for imx6qdl-gw54xx.dtsi? > > If this still does not help your HDMI output, please try disabling the LVDS. 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? - Pushpal _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
