Hi all!
I'm having the same problem with Waveshare 7inch HDMI 1024x600.
After starting osmc+kodi, the screen went up with kodi menu but "out of sync" so I disabled kodi automatic start, and learnt that osmc starts ok, ie. screen shows the splash blue kodi screen correctly.
Then I started kodi manually and the screen went wrong. (I can see the kodi menu but out of sync).
So, let me show you my info and steps:
config.txt:
Code:
hdmi_cvt=1024 600 60 6 0 0 0
hdmi_group=2
hdmi_mode=87
hdmi_force_mode=1
# Ensure power to the display
max_usb_current=1
gpu_mem_1024=256
#hdmi_ignore_cec_init=1
#disable_overscan=1
start_x=1
#disable_splash=1
dtoverlay=lirc-rpi:gpio_out_pin=17,gpio_in_p
1) Start osmc with kodi automatic start disabled
- screen ok
2) Check display available modes
Code:
osmc@osmc:~$ /opt/vc/bin/tvservice -m DMT
Group DMT has 2 modes:
mode 4: 640x480 @ 60Hz 4:3, clock:25MHz progressive
(prefer) mode 87: 1024x600 @ 60Hz 15:9, clock:49MHz progressive
3) Check display actual mode
Code:
osmc@osmc:~$ /opt/vc/bin/tvservice -s
state 0x120006 [DVI DMT (87) RGB full 15:9], 1024x600 @ 60.00Hz, progressive
4) Generate edid.dat
Code:
osmc@osmc:~$ /opt/vc/bin/tvservice -d edid.dat
Written 128 bytes to edid.dat
5) Parse edid.dat
Code:
osmc@osmc:~$ /opt/vc/bin/edidparser edid.dat
Enabling fuzzy format match...
Parsing edid.dat...
HDMI:EDID version 1.3, 0 extensions, screen size 15x10 cm
HDMI:EDID features - videodef 0x80 !standby !suspend !active off; colour encoding:RGB444|YCbCr422; sRGB is not default colourspace; preferred format is native; does not support GTF
HDMI:EDID ignored unknown descriptor tag 0x10
HDMI:EDID ignored unknown descriptor tag 0x10
HDMI:EDID ignored unknown descriptor tag 0x10
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 1024x600p hfp:40 hs:48 hbp:40 vfp:13 vs:3 vbp:29 pixel clock:32 MHz
HDMI:EDID calculated refresh rate is 43 Hz
HDMI:EDID guessing the format to be 1024x600p @50 Hz
HDMI:EDID found unknown detail timing format: 1024x600p hfp:40 hs:48 hbp:40 vfp:13 vs:3 vbp:29 pixel clock:32 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 > 162 MHz or h. blanking > 1023
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 25 MHz (score 0)
HDMI:EDID best score mode is now DMT (4) 640x480p @ 60 Hz with pixel clock 25 MHz (score 36864)
HDMI: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
edid_parser exited with code 0
6) Start kodi
Code:
osmc@osmc:~$ sudo systemctl start mediacenter
Screen goes out of sync because starting kodi changes resolution to unsupported mode 1920x1080:
7) Check actual display mode:
Code:
osmc@osmc:~$ /opt/vc/bin/tvservice -s
state 0x12000a [HDMI CEA (16) RGB lim 16:9], 1920x1080 @ 59.94Hz, progressive
Additional notes:
- I checked with several HDMI cables I know work correctly
- Source has enough power and is working correctly (2A)
- OSMC version:
Code:
osmc@osmc:~$ grep VERSION_ID /etc/os-release
VERSION_ID="2016.04-2"
osmc@osmc:~$
- Kodi version:
Code:
osmc@osmc:~$ grep Kodi .kodi/temp/kodi.log | head -3
02:57:35 582.923889 T:1957643184 NOTICE: Starting Kodi (17.0-ALPHA1). Platform: Linux ARM (Thumb) 32-bit
02:57:35 582.923950 T:1957643184 NOTICE: Using Release Kodi x32 build (version for Raspberry Pi)
02:57:35 582.924011 T:1957643184 NOTICE: Kodi compiled Apr 23 2016 by GCC 4.9.2 for Linux ARM (Thumb) 32-bit version 3.16.7 (200711)
- Kodi log file:
http://pastebin.com/9ueXV2Vy
Any ideas on how to prevent kodi changing resolution?
Thank you all for your contribution!
