Cael wrote: ↑
Sun Jul 14, 2019 2:42 am
.... which i cant test against w/ HDMI as my Micro cable wont be here for another day or so,
Raspbian Buster takes upwards to 8 Mins to fully boot! ...
Composite was my first sighting of booting Pi4 as the courier managed to take an unscheduled extra day to deliver my µHDMI cables too!
Not 8 min's here, but there's definitely a big delay.
I put my current µSD for Pi4 into a RPi3b with hdmi cable along with composite plugged in, & booted.
No slowdown noted & as expected, hdmi monitor displays boot & desktop, nothing on Composite.
Next, in config.txt, I commented out the enable
left the composite cable plugged in, but pulled out the hdmi cable.
Multicolour blob appears, then 4 raspberries etc., then black screen.
After about a minute, the desktop appeared on the composite output.
Rebooting then also took much longer than usual, mostly because it didn't seem to want to shut down, even though only a terminal was open.
On a subsequent slow reboot, I plugged back in the hdmi cable for a few seconds.
Removed it again, & hey presto, Composite monitor has a picture rather more quickly.
So, apart from the time factor, enable_tvout=1 doesn't seem to do much.
$ uname -a
Linux b1 4.19.57-v7+ #1244 SMP Thu Jul 4 18:45:25 BST 2019 armv7l GNU/Linux
$ vcgencmd version
Jul 9 2019 14:40:53
Copyright (c) 2012 Broadcom
version 6c3fe3f096a93de3b34252ad98cdccadeb534be2 (clean) (release) (start)
& a hopefully relevant scrap of dmesg:
5.503223] [drm] Initialized vc4 0.0.0 20140616 for soc:gpu on minor 0
[ 5.503243] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 5.503249] [drm] No driver support for vblank timestamp query.
[ 5.503258] [drm] Setting vblank_disable_immediate to false because get_vblank_timestamp == NULL
[ 5.516487] [drm] Cannot find any crtc or sizes
[ 5.647731] random: crng init done
[ 5.647747] random: 7 urandom warning(s) missed due to ratelimiting
[ 5.684006] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43430-sdio for chip BCM43430/1
[ 5.684116] brcmfmac: brcmf_c_process_clm_blob: no clm_blob available (err=-2), device may have limited channels available
[ 5.684922] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM43430/1 wl0: Oct 23 2017 03:55:53 version 126.96.36.199 (r674442 CY) FWID 01-e58d219f
[ 6.552177] [drm] Cannot find any crtc or sizes
[ 7.389633] uart-pl011 3f201000.serial: no DMA platform data
[ 7.503897] 8021q: 802.1Q VLAN Support v1.8
[ 7.735273] Adding 102396k swap on /var/swap. Priority:-2 extents:1 across:102396k SSFS
[ 8.544204] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup
[ 10.060239] smsc95xx 1-1.1:1.0 eth0: link up, 100Mbps, full-duplex, lpa 0x45E1
[ 12.297515] Bluetooth: Core ver 2.22
[ 12.297582] NET: Registered protocol family 31
[ 12.297586] Bluetooth: HCI device and connection manager initialized
[ 12.297599] Bluetooth: HCI socket layer initialized
[ 12.297607] Bluetooth: L2CAP socket layer initialized
[ 12.297628] Bluetooth: SCO socket layer initialized
[ 12.311664] Bluetooth: HCI UART driver ver 2.3
[ 12.311673] Bluetooth: HCI UART protocol H4 registered
[ 12.311723] Bluetooth: HCI UART protocol Three-wire (H5) registered
[ 12.311924] Bluetooth: HCI UART protocol Broadcom registered
[ 12.622067] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 12.622079] Bluetooth: BNEP filters: protocol multicast
[ 12.622098] Bluetooth: BNEP socket layer initialized
[ 12.680510] Bluetooth: RFCOMM TTY layer initialized
[ 12.680538] Bluetooth: RFCOMM socket layer initialized
[ 12.680556] Bluetooth: RFCOMM ver 1.11
[ 22.232017] [drm:drm_atomic_helper_wait_for_flip_done [drm_kms_helper]] *ERROR* [CRTC:49:crtc-0] flip_done timed out
[ 34.392029] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [CRTC:49:crtc-0] flip_done timed out
[ 44.632036] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [CONNECTOR:51:Composite-1] flip_done timed out
[ 54.872027] [drm:drm_atomic_helper_wait_for_flip_done [drm_kms_helper]] *ERROR* [CRTC:49:crtc-0] flip_done timed out
[ 65.752010] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [CRTC:49:crtc-0] flip_done timed out
[ 75.991443] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [PLANE:28:plane-0] flip_done timed out