peng-zhihui/PocketLCD

树莓派3B直接先插HDMI再开机会花屏 用另外一个"派"开机不显示,要HDMI查一下正常显示器再插回PocketLCD才能显示

colinkyd opened this issue · 7 comments

colinkyd commented
树莓派3B直接先插HDMI再开机会花屏 用另外一个"派"开机不显示,要HDMI查一下正常显示器再插回PocketLCD才能显示
gyy0814 commented

您好 我的问题是会显示一半 我感觉是因为屏幕默认上竖着显示的问题 并且也测试了切换显示方向 都是只有一半

gyy0814 commented

方便的话可以加一下QQ交流下吗
ฅ۶•ﻌ•♡

colinkyd commented

您好 我的问题是会显示一半 我感觉是因为屏幕默认上竖着显示的问题 并且也测试了切换显示方向 都是只有一半

我和你问题一样

fzwwj95 commented

和驱动有关？

EngineerWill commented

看看config.txt是否指定了对应分辨率

colinkyd commented

看看config.txt是否指定了对应分辨率
插电脑显示器正常显示

corrugatorsupercilii commented

Tested on Pi Zero W 2, the EDID from PockeLCD

pi@raspberrypi:~ $ edidparser edid.dat
Enabling fuzzy format match...
Parsing edid.dat...
HDMI:EDID version 1.3, 0 extensions, unknown aspect ratio
HDMI:EDID features - videodef 0x80 !standby !suspend !active off; colour encoding:RGB444|YCbCr422; sRGB is not default colourspace; preferred format is not native; does not support GTF
HDMI:EDID ignored unknown descriptor tag 0x0
HDMI:EDID ignored unknown descriptor tag 0x0
HDMI:EDID ignored unknown descriptor tag 0x0
HDMI:EDID does not yet know monitor vertical range, setting to default 24 to 120Hz
HDMI:EDID failed to find a matching detail format for 1080x1920p hfp:72 hs:8 hbp:16 vfp:14 vs:4 vbp:4 pixel clock:137 MHz
HDMI:EDID calculated refresh rate is 60 Hz
HDMI:EDID guessing the format to be 1080x1920p @60 Hz
HDMI:EDID found unknown detail timing format: 1080x1920p hfp:72 hs:8 hbp:16 vfp:14 vs:4 vbp:4 pixel clock:137 MHz
HDMI:EDID established timing I/II bytes are 00 00 00
HDMI:EDID standard timings block x 8: 0x0101 0101 0101 0101 0101 0101 0101 0101
HDMI:EDID adding mandatory support for DMT (4) 640x480p @ 60Hz
HDMI:EDID filtering formats with pixel clock unlimited MHz or h. blanking unlimited
HDMI:EDID no known preferred format has been set
HDMI:EDID filtering preferred group has been changed from Invalid to DMT
HDMI:EDID best score mode initialised to DMT (4) 640x480p @ 60 Hz with pixel clock 14 MHz (score 25)
HDMI:EDID best score mode is now DMT (4) 640x480p @ 60 Hz with pixel clock 25 MHz (score 36864)
HDMI0:EDID preferred mode is updated to DMT (4) 640x480p @ 60 Hz with pixel clock 25200000 Hz
HDMI:EDID has only DVI support and no audio support
edidparser exited with code 0

Edits for /boot/config.txt

#5.5 inch 1080x1920@60Hz
#Display in landscape mode...
config_hdmi_boost=10
hdmi_group=2
hdmi_mode=87
max_framebuffer_width=1080
max_framebuffer_height=1920
#From EDID.dat 60Hz, unfortunately didn't work
#hdmi_timings = 1080 0 72 8 16 1920 0 14 4 4 0 0 0 60 0 137000000 3
#Using HDMI timing calculator @59.94Hz
hdmi_timings= 1080 0 72 8 16 1920 0 14 4 4 0 0 0 60 0 136890490 3
display_hdmi_rotate=3