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标题: hdmi 没有输出 [打印本页]

作者: zhang1984 时间: 2015-4-22 10:51
标题: 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: [hdmi_dev_config_video] sucess output DVI.

请问这个是什么原因呀

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

作者: zhang1984 时间: 2015-9-14 11:16

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

作者: zhangjy46 时间: 2017-8-16 10:59
我现在也是这样，用kernel3.14在3288reload的板子上的。

作者: hch246 时间: 2018-7-27 15:34
是HDMI硬件接口问题，在读i2c处的MOS管改为 2SK3018

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