Patched the Arch 4.12 kernel and working thus far! Cheers, -Anthony On Sun, Jul 9, 2017 at 12:26 PM, Paul Kocialkowski <contact@xxxxxxxx> wrote: > Le dimanche 09 juillet 2017 à 18:55 +0300, Paul Kocialkowski a écrit : >> Le vendredi 07 juillet 2017 à 14:28 +0100, Jon Hunter a écrit : >> > 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 >> >> Thanks! I have investigated a bit further and can pinpoint it to >> iommu_attach_device returning -ENODEV in drivers/gpu/host1x/dev.c's >> host1x_probe. >> >> I'll keep investigating to find out what's going on with the IOMMU >> code. > > I have a fix for it now and display is back to life. Hooray! > > Will submit the patch ASAP, I'm not sure it's the exactly right way to > do it, but it does work. > > Cheers, > > -- > Paul Kocialkowski, > > developer of free digital technology and hardware support > > Website: https://www.paulk.fr/ > Coding blog: https://code.paulk.fr/ > Git repositories: https://git.paulk.fr/ https://git.code.paulk.fr/ -- 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
