Dmitry, I am testing out your grate-driver repository, gentoo with grate-overlay. Should this display on a Tegra20? If not then disregard. When booting the kernel I get a blank screen, no backlight. Kernel Head: 65e787277dab665c0f7de53ae42a7f57474ce0fe (HEAD, grate/master) iommu/ipmmu-vmsa: Don't register as BUS IOMMU if machine doesn't have IPMMU-VMSA dmesg -t | grep -E 'tegra-dc|tegra-gr2d': tegra-dc 54200000.dc: failed to probe RGB output: -517 tegra-dc 54200000.dc: failed to probe RGB output: -517 tegra-dc 54240000.dc: Linked as a consumer to 54200000.dc tegra-dc 54240000.dc: coupled to 54200000.dc tegra-gr2d 54140000.gr2d: failed to get IOMMU group tegra-gr2d 54140000.gr2d: failed to attach to domain: -19 The tegra-dc lines are present on a working, vanilla 4.18-r6 kenrel. Not sure if the gr2d stuff is related to the blank screen. -Kyle -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
