16:04 <ad__> hi, need some help, on etnaviv on kernel 5.4, at kernel boot i get a drm_kms_helper_hotplug_event() but seems with etnaviv there is no " .output_poll_changed = " set so i get a kernel panic

16:05 <ad__> i see other gpu drivders setting .output_poll_changed but not etnaviv, am i missing something ?

16:08 <austriancoder> ad__: etnaviv is render-only so no kms. have a look at your used kms driver

18:52 <ad__> austriancoder, oh, mmm. do i need a kms driver ? i am on imx6

18:52 <ad__> *imx6q

18:53 <austriancoder> ad__: then DRM_IMX should work

18:54 <ad__> oh, it is actually DRM_IMX [=y]

19:00 <ad__> this is my current issue: http://hastebin.com/cazokebebi.yaml

19:05 <cphealy> ad__: Depending on the output, you will also need DRM_IMX_HDMI, DRM_IMX_LDB, DRM_IMX_PARALLEL, or even DRM_IMX_TVE enabled.

19:06 <austriancoder> ad__: and a suitable dts/dtb

19:08 <cphealy> Also, is this based on the upstream 5.4 kernel or is this using NXP's fork of the 5.4 kernel? NXP's forks of the upstream kernel should not be considered the same as the upstream kernel as they make many "creative" alterations. IIRC, NXP makes special enhancements to fix the i.MX6 DTS/DTB to use NXP display controller driver and not the upstream 5.4 drm/kms driver.

19:10 <ad__> all the DRM_IMX_XXX are set to [y] / yes, it's a linux-imx nxp patched stuff, not mainline.

19:10 <ad__> seemst that removing CONFIG_DRM_FBDEV_EMULATION the boot works now

19:11 <cphealy> Is there anything specific to the linux-imx kernel that is not part of the upstream 5.4 kernel that requires it be used?

19:27 <ad__> cphealy, i think some driver cannot be disabled, need to check