Hi, On 2024-08-22 18:25 +03:00, Nícolas F. R. A. Prado wrote: > On Wed, Aug 21, 2024 at 12:28:34PM +0800, Chen-Yu Tsai wrote: >> The DPI display interface feeds the external display pipeline. However >> the pipeline representation is currently incomplete. Efforts are still >> under way to come up with a way to represent the "creative" repurposing >> of the DP bridge chip's internal output mux, which is meant to support >> USB type-C orientation changes, to output to one of two type-C ports. >> >> Until that is finalized, the external display can't be fully described, >> and thus won't work. Even worse, the half complete graph potentially >> confuses the OS, breaking the internal display as well. >> >> Disable the external display interface across the whole Corsola family >> until the DP / USB Type-C muxing graph binding is ready. >> >> Reported-by: Alper Nebi Yasak <alpernebiyasak@xxxxxxxxx> >> Closes: https://lore.kernel.org/linux-mediatek/38a703a9-6efb-456a-a248-1dd3687e526d@xxxxxxxxx/ >> Fixes: 8855d01fb81f ("arm64: dts: mediatek: Add MT8186 Krabby platform based Tentacruel / Tentacool") >> Cc: <stable@xxxxxxxxxxxxxxx> >> Signed-off-by: Chen-Yu Tsai <wenst@xxxxxxxxxxxx> > > Reviewed-by: Nícolas F. R. A. Prado <nfraprado@xxxxxxxxxxxxx> > > Would be good to have Alper verify that with this change the internal display > works again in their specific setup, although this change seems reasonable to me > either way. Tested-by: Alper Nebi Yasak <alpernebiyasak@xxxxxxxxx> Fixes that linked issue I had with internal display on my magneton. And apparently I don't even need a custom kernel for it, I managed to get the display working on Debian's v6.11-rc4 build with this dts change (and `softdep mediatek-drm pre: mtk-iommu mt6358-regulator` iirc). Thanks!
