On 05/07/17 21:31, Anthony Eden wrote: > I no longer have any HDMI output from either my Jetson TK1 > (tegra124-jetson-tk1) or Acer Chromebook 13 CB5-311 > (tegra124-nyan-big) in Linux 4.12. In 4.11 I had no problem starting > up X server. > > Lightdm tries to start on boot and /var/log/Xorg.0.log contains: > > ... > > [ 10.723] (II) modesetting: Driver for Modesetting Kernel Drivers: kms > [ 10.723] (II) modeset(0): using drv /dev/dri/card0 > [ 10.724] (II) modeset(0): Creating default Display subsection in > Screen section > "Default Screen Section" for depth/fbbpp 24/32 > [ 10.724] (==) modeset(0): Depth 24, (==) framebuffer bpp 32 > [ 10.724] (==) modeset(0): RGB weight 888 > [ 10.724] (==) modeset(0): Default visual is TrueColor > [ 10.724] (II) Loading sub module "glamoregl" > [ 10.724] (II) LoadModule: "glamoregl" > [ 10.724] (II) Loading /usr/lib/xorg/modules/libglamoregl.so > [ 10.726] (II) Module glamoregl: vendor="X.Org Foundation" > [ 10.726] compiled for 1.19.3, module version = 1.0.0 > [ 10.726] ABI class: X.Org ANSI C Emulation, version 0.4 > [ 10.726] (II) glamor: OpenGL accelerated X.org driver based. > [ 10.920] (II) glamor: EGL version 1.4 (DRI2): > [ 10.924] (II) modeset(0): glamor initialized > [ 10.924] (WW) modeset(0): No outputs definitely connected, trying again... > [ 10.925] (WW) modeset(0): Unable to find connected outputs - > setting 1024x768 initial framebuffer > [ 10.925] (==) modeset(0): Using gamma correction (1.0, 1.0, 1.0) > [ 10.925] (EE) modeset(0): No modes. > [ 10.957] (II) UnloadModule: "modesetting" > [ 10.957] (II) UnloadSubModule: "glamoregl" > [ 10.957] (II) Unloading glamoregl > [ 10.957] (EE) Screen(s) found, but none have a usable configuration. > [ 10.957] (EE) > Fatal server error: > [ 10.957] (EE) no screens found(EE) > [ 10.957] (EE) > Please consult the The X.Org Foundation support > at http://wiki.x.org > for help. > [ 10.957] (EE) Please also check the log file at > "/var/log/Xorg.0.log" for additional information. > [ 10.957] (EE) > [ 10.957] (EE) Server terminated with error (1). Closing log file. > > ... > > I am running the ArchLinuxARM linux-armv7 kernel (.config is > attached), along with the ALARM userspace. > > I've attached dmesg's from my Jetson TK1 and Chromebook. How can I > help to debug this further? Thanks for the report. I am seeing this too. Bisect is point to the following commit, hopefully, Thierry and Mikko can comment ... commit 404bfb78daf3bedafb0bfab24947059575cbea3d Author: Mikko Perttunen <mperttunen@xxxxxxxxxx> Date: Wed Dec 14 13:16:14 2016 +0200 gpu: host1x: Add IOMMU support Cheers Jon -- nvpublic -- 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
