Re: [PATCH v3] drm/i915: Re-init lspcon after HPD if lspcon probe failed

On Tue, Jan 14, 2020 at 04:11:40PM +0200, Jani Nikula wrote: > On Mon, 06 Jan 2020, Kai-Heng Feng wrote: > > Hi Jani, > > > >> On Dec 24, 2019, at 16:42, Kai-Heng Feng > >> wrote: > >> > >> On HP 800 G4 DM, if HDMI cable isn't plugged before boot, the HDMI port > >> becomes useless and never

Re: [PATCH v3] drm/i915: Re-init lspcon after HPD if lspcon probe failed

On Mon, 06 Jan 2020, Kai-Heng Feng wrote: > Hi Jani, > >> On Dec 24, 2019, at 16:42, Kai-Heng Feng wrote: >> >> On HP 800 G4 DM, if HDMI cable isn't plugged before boot, the HDMI port >> becomes useless and never responds to cable hotplugging: >> [3.031904] [drm:lspcon_init [i915]] *ERROR*

Re: [PATCH v3] drm/i915: Re-init lspcon after HPD if lspcon probe failed

Hi Jani, > On Dec 24, 2019, at 16:42, Kai-Heng Feng wrote: > > On HP 800 G4 DM, if HDMI cable isn't plugged before boot, the HDMI port > becomes useless and never responds to cable hotplugging: > [3.031904] [drm:lspcon_init [i915]] *ERROR* Failed to probe lspcon > [3.031945]

[PATCH v3] drm/i915: Re-init lspcon after HPD if lspcon probe failed

On HP 800 G4 DM, if HDMI cable isn't plugged before boot, the HDMI port becomes useless and never responds to cable hotplugging: [3.031904] [drm:lspcon_init [i915]] *ERROR* Failed to probe lspcon [3.031945] [drm:intel_ddi_init [i915]] *ERROR* LSPCON init failed on port D Seems like the