On 10/24/22 13:19, Thomas Zimmermann wrote: > Don't set struct drm_driver.output_poll_changed. It's used to restore > the fbdev console. But as amdgpu uses generic fbdev emulation, the > console is being restored by the DRM client helpers already. See the > functions drm_kms_helper_hotplug_event() and > drm_kms_helper_connector_hotplug_event() in drm_probe_helper.c. > > v2: > * fix commit description (Christian) > > Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx> > --- Reviewed-by: Javier Martinez Canillas <javierm@xxxxxxxxxx> Do you think that the fbdev helpers kernel doc has to be updated to mention that drm_fb_helper_lastclose() and drm_fb_helper_output_poll_changed() are not needed when generic fbdev emulation is used? Because by reading that is not clear that's the case: https://elixir.bootlin.com/linux/latest/source/drivers/gpu/drm/drm_fb_helper.c#L86 -- Best regards, Javier Martinez Canillas Core Platforms Red Hat