Hi Sebastian, On 1/14/2026 5:51 AM, Sebastian Reichel wrote: > Hi, > > On Fri, Jan 09, 2026 at 04:00:43PM +0800, Andy Yan wrote: >> From: Andy Yan <[email protected]> >> >> The DisplayPort found on RK3576 is very similar to that of RK3588, >> but work in qual pixel mode and support for MST. >> >> This patch series aims to add basic display output, not include >> audio and MST, which will be the work for the next stage. >> >> Only test with 2 lane standard DP port output now. > > This is a nice minimal series :) I got it working to some degree on > the RK3576 Sige5 USB-C port. The display connection detection is > _very_ unstable, but that part is handled by the TypeC Port Manager > and unrelated to the DP controller (and already an issue on the RK3588 > based Rock 5B). IF the display is detected (i.e. USB-C side worked > properly), the DP controller managed to do proper output too. Thus > I believe this should be merged. I plan to look into the TCPM issues > in the meantime.
Based on experience with other platforms, I suspect that some HPD events are not being properly propagated to the DP driver. This might be worth looking into. -- Best, Chaoyi
