On 2019-02-21 20:42, Robert Foss wrote: > > On 2/21/19 8:15 PM, Ezequiel Garcia wrote: >> Folks, >> >> On Thu, 2019-02-21 at 20:08 +0100, Robert Foss wrote: >> [..] >> >> The clock debugging is obviously good research. >> >>>> >>>> Additionally I've had a look at the libdrm modetest util, and it is reporting >>>> far fewer modes than what I would expect on my 4k monitor. >>>> >> That said, this is also worth looking into. >> I'm curious, is the EDID the kernel getting OK? >> > Given that modetest lists way too few modes, I would think > there could be some EDID related issues. It is more likely the issue is in dw_hdmi_rockchip_mode_valid(), it currently filters out any mode not defined in rockchip_mpll_cfg. That method needs some changes to allow for 4k modes and fractal refresh rates. E.g. for RK3328 it should probably check the inno-hdmi-phy clock rates. Best regards, Jonas > >> Thanks! >> Eze >> > _______________________________________________ > Linux-rockchip mailing list > Linux-rockchip@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/linux-rockchip _______________________________________________ Linux-rockchip mailing list Linux-rockchip@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-rockchip
