Platform: Raspberry Pi 3 Model B Rev 1.2
Since the upgrade from LibreELEC 9.0.2 to LibreELEC 9.2.3 HDMI output is no longer working properly in combination with my Panasonic PT-AT5000E projector. It worked nicely for the last couple of years but since the upgrade to LibreELEC 9.2.3 I can only see the LibreELEC boot logo, the moment Kodi starts up I'm losing the HDMI signal.
To rule out any upgrade issues I flashed a new and fresh LibreELEC 9.2.3 to another SD card and booted that. HDMI output is working, Kodi boots up in 1080i - the moment I switch to 1080p my projects looses the HDMI signal again.
I did a bit of debugging and it looks like something's broking with the Raspberry Pi itself - maybe due to newer firmware? But decide for yourself:
LibreELEC 9.0.2
# tvservice -m CEA
Group CEA has 15 modes:
mode 1: 640x480 @ 60Hz 4:3, clock:25MHz progressive
mode 2: 720x480 @ 60Hz 4:3, clock:27MHz progressive
mode 3: 720x480 @ 60Hz 16:9, clock:27MHz progressive
mode 4: 1280x720 @ 60Hz 16:9, clock:74MHz progressive 3D:FP|TopBot
(prefer) mode 5: 1920x1080 @ 60Hz 16:9, clock:74MHz interlaced 3D:SbS-HH
mode 10: 720x480 @ 60Hz 4:3, clock:54MHz x4 interlaced
mode 16: 1920x1080 @ 60Hz 16:9, clock:148MHz progressive
mode 17: 720x576 @ 50Hz 4:3, clock:27MHz progressive
mode 18: 720x576 @ 50Hz 16:9, clock:27MHz progressive
mode 19: 1280x720 @ 50Hz 16:9, clock:74MHz progressive 3D:FP|TopBot
mode 20: 1920x1080 @ 50Hz 16:9, clock:74MHz interlaced 3D:SbS-HH
mode 24: 720x288 @ 50Hz 16:9, clock:27MHz x2 progressive
mode 31: 1920x1080 @ 50Hz 16:9, clock:148MHz progressive
mode 32: 1920x1080 @ 24Hz 16:9, clock:74MHz progressive 3D:FP|TopBot
mode 45: 720x576 @ 100Hz 16:9, clock:54MHz x2 interlaced
# tvservice -m DMT
Group DMT has 1 modes:
mode 4: 640x480 @ 60Hz 4:3, clock:25MHz progressive
# tvservice -s
state 0x12000a [HDMI CEA (16) RGB lim 16:9], 1920x1080 @ 60.00Hz, progressive
Display More
That shows normal operation with Kodi running just as it should.
LibreELEC 9.2.3
# tvservice -m CEA
Group CEA has 19 modes:
mode 1: 640x480 @ 60Hz 4:3, clock:25MHz progressive
mode 2: 720x480 @ 60Hz 4:3, clock:27MHz progressive
mode 3: 720x480 @ 60Hz 16:9, clock:27MHz progressive
mode 4: 1280x720 @ 60Hz 16:9, clock:74MHz progressive 3D:FP|TopBot
(prefer) mode 5: 1920x1080 @ 60Hz 16:9, clock:74MHz interlaced 3D:SbS-HH
mode 10: 720x480 @ 60Hz 4:3, clock:54MHz x4 interlaced
mode 16: 1920x1080 @ 60Hz 16:9, clock:148MHz progressive
mode 17: 720x576 @ 50Hz 4:3, clock:27MHz progressive
mode 18: 720x576 @ 50Hz 16:9, clock:27MHz progressive
mode 19: 1280x720 @ 50Hz 16:9, clock:74MHz progressive 3D:FP|TopBot
mode 20: 1920x1080 @ 50Hz 16:9, clock:74MHz interlaced 3D:SbS-HH
mode 24: 720x288 @ 50Hz 16:9, clock:27MHz x2 progressive
mode 31: 1920x1080 @ 50Hz 16:9, clock:148MHz progressive
mode 32: 1920x1080 @ 24Hz 16:9, clock:74MHz progressive 3D:FP|TopBot
mode 45: 720x576 @ 100Hz 16:9, clock:54MHz x2 interlaced
mode 74: 1920x1080 @ 30Hz 64:27 (21:9), clock:74MHz progressive
mode 110: 0x0 @ 0Hz 16:9, clock:0MHz progressive
mode 111: 0x0 @ 0Hz 16:9, clock:0MHz progressive
mode 115: 0x0 @ 0Hz 16:9, clock:0MHz progressive
# tvservice -m DMT
Group DMT has 1 modes:
mode 4: 640x480 @ 60Hz 4:3, clock:25MHz progressive
# tvservice -s
state 0xa [HDMI CEA (5) RGB lim 16:9], 1920x1080 @ 60.00Hz, interlaced
Display More
That's a fresh LibreELEC installation, right after boot. No setting has been changed so far.
After switching to 1080p (and loosing the HDMI signal) it looks like this:
# tvservice -s
state 0xa [HDMI CEA (115) RGB lim 16:9]
HDMI CEA mode 115 seems to be 2160p48 - I'm 100% sure my projector does not support that mode. On LibreELEC 9.0.2 it's not present.
I enabled Kodi debug logging and uploaded the relevant files/information:
# paste /storage/.kodi/temp/kodi.log
http://ix.io/2oRr
# dmesg | paste
http://ix.io/2oRt
I do have a EDID dump (taken with tvservice --dumpedid edid.bin) in case you need it.
