zhang1984 发表于 2015-4-22 10:51:17

hdmi 没有输出

做的板子现在烧写完程序后没有hdmi输出；打印log如下：[    2.014280] rk3288-hdmi ff980000.hdmi: warning: no CEA video mode parsed from EDID !!!![    2.014295] ******** Show Sink Info ********
[    2.014301] Max tmds clk is 0
[    2.014306] Support video mode:
[    2.014311]         1920x1080p@60Hz
[    2.014316]         1920x1080p@50Hz
[    2.014320]         1280x720p@60Hz
[    2.014324]         1280x720p@50Hz
[    2.014328]         720x576p@50Hz
[    2.014333]         720x480p@60Hz
[    2.014337] Support video color mode:
[    2.014341]         RGB
[    2.014346] Support video color depth:
[    2.014351]         24bit
[    2.014356] Support audio type:
[    2.014360] ******** Show Sink Info ********
[    2.014374]
[    2.014374] rk_fb_switch_screen lcdc_id 0 type 6 enable 1
[    2.014387] fb0 win id 1 state 1
[    2.014405] rk3288-lcdc lcdc0: lcdc0: dclk:148500000>>fps:60
[    2.014427] fb1 win id 0 state 0
[    2.014433] fb2 win id 2 state 0
[    2.014439] fb3 win id 3 state 0
[    2.014445] fb4 win id 4 state 0
[    2.014450]
[    2.014450] rk_fb_switch_screen lcdc_id 0 type 6 enable 1 done
[    2.014450]
[    2.014464] pixel clk is 148500000 tmds clk is 148500000
[    2.014486] rk3288-hdmi ff980000.hdmi: sucess output DVI.


请问这个是什么原因呀

ewonewon 发表于 2015-9-10 10:39:09

我也遇到了这个问题。。。，顶上去

zhang1984 发表于 2015-9-14 11:16:23

ewonewon 发表于 2015-9-10 10:39
我也遇到了这个问题。。。，顶上去

如果是自己做的板子看看线序,我的就是换了接口,买的专接口线序不对

zhangjy46 发表于 2017-8-16 10:59:24

我现在也是这样，用kernel3.14在3288reload的板子上的。

hch246 发表于 2018-7-27 15:34:57

是HDMI硬件接口问题，在读i2c处的MOS管改为 2SK3018
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