> Wiadomość napisana przez Andy Yan <andyshrk@xxxxxxx> w dniu 7 mar 2025, o godz. 01:48: > > > Hi Piotr, > 在 2025-03-06 22:28:08，"Piotr Oniszczuk" <piotr.oniszczuk@xxxxxxxxx> 写道： >> >> > > All dump information currently appears to be correct, so I'm temporarily unsure why > there is no display on the monitor. > Maybe try some plug and unplug for the DP cable, or try another cable or monitor? > > It seems that this board uses a DP to HDMI converter? Does this transmitter need a driver? > > I won't be at my computer over the next two or three days, so any further replies to your email > might have to wait until next week. > > Andy, FYI: I done test on mine rock5a with applied Naoki dp0 enablement in dts (and only in dts). No any changes in dw dp driver (so i’m on vanilla https://patchwork.kernel.org/project/linux-rockchip/cover/20250223113036.74252-1-andyshrk@xxxxxxx/ ) on mine rock5a ra620 hdmi port works ok. (I contacted also Radxa about ra620 and they confirmed: ra620 is just DP->HDMI converter. No any driver nor special programming/enablement is needed) This tells me that dp0 (rock5a) works ok while dp1 (rock5itx) not. i suspect issue is probably in https://patchwork.kernel.org/project/linux-rockchip/cover/20250223113036.74252-1-andyshrk@xxxxxxx/ and is related to dp1 handling? BTW: there seems to be issue with video modes handling on dp0 port: -playing video 1920@1080@50 - ok -playing then video1920@1080@59,64 hangs board…. hdmi0 works ok. video modes issue is only on dp0
