raspberry PI 2B camera: errors and camera test bumpy

Hello,
I have uploaded the latest debian on my raspberry PI 2B.
The camera setup is difficult.

Errors at boot
(module loaded. fine)
1. motion conf filled but 1024x768 (as previous setup 2 years ago) claimed. Change to 1296x972 in motion.conf is claimed to be 1296x976 (wrong)
2. pipeline error; see below

Code:[ 14.889900] bcm2835_v4l2: module is from the staging directory, the quality is unknown, you have been warned.
[ 15.268186] systemd[1]: Mounted Kernel Trace File System.
[ 15.384287] systemd[1]: Finished Restore / save the current clock.
[ 15.504331] systemd[1]: Finished Create list of static device nodes for the current kernel.
[ 15.634168] systemd[1]: modprobe@configfs.service: Succeeded.
[ 15.694464] systemd[1]: Finished Load Kernel Module configfs.
[ 15.815190] systemd[1]: modprobe@drm.service: Succeeded.
[ 15.877801] systemd[1]: Finished Load Kernel Module drm.
[ 15.983785] systemd[1]: modprobe@fuse.service: Succeeded.
[ 16.064361] systemd[1]: Finished Load Kernel Module fuse.
[ 16.174646] systemd[1]: Finished File System Check on Root Device.
[ 16.256057] systemd[1]: Finished Set the console keyboard layout.
[ 16.334538] systemd[1]: Finished Load Kernel Modules.
[ 16.419787] systemd[1]: Started Journal Service.
[ 18.154402] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[ 18.769434] systemd-journald[102]: Received client request to flush runtime journal.
[ 25.408397] bcm2835_isp: module is from the staging directory, the quality is unknown, you have been warned.
[ 25.465090] bcm2835-isp bcm2835-isp: Device node output[0] registered as /dev/video13
[ 25.473585] bcm2835-isp bcm2835-isp: Device node capture[0] registered as /dev/video14
[ 25.477071] bcm2835_codec: module is from the staging directory, the quality is unknown, you have been warned.
[ 25.495086] bcm2835-isp bcm2835-isp: Device node capture[1] registered as /dev/video15
[ 25.506290] bcm2835-isp bcm2835-isp: Device node stats[2] registered as /dev/video16
[ 25.506371] bcm2835-isp bcm2835-isp: Register output node 0 with media controller
[ 25.506421] bcm2835-isp bcm2835-isp: Register capture node 1 with media controller
[ 25.506460] bcm2835-isp bcm2835-isp: Register capture node 2 with media controller
[ 25.506494] bcm2835-isp bcm2835-isp: Register capture node 3 with media controller
[ 25.520792] bcm2835-isp bcm2835-isp: Loaded V4L2 bcm2835-isp
[ 25.575371] bcm2835-codec bcm2835-codec: Device registered as /dev/video10
[ 25.575493] bcm2835-codec bcm2835-codec: Loaded V4L2 decode
[ 25.587379] bcm2835-codec bcm2835-codec: Device registered as /dev/video11
[ 25.587497] bcm2835-codec bcm2835-codec: Loaded V4L2 encode
[ 25.616624] bcm2835-codec bcm2835-codec: Device registered as /dev/video12
[ 25.616743] bcm2835-codec bcm2835-codec: Loaded V4L2 isp
[ 25.645587] bcm2835-codec bcm2835-codec: Device registered as /dev/video18
[ 25.645692] bcm2835-codec bcm2835-codec: Loaded V4L2 image_fx
[ 27.038870] i2c i2c-11: Added multiplexed i2c bus 0
[ 27.040210] i2c i2c-11: Added multiplexed i2c bus 10
[ 30.627351] usbcore: registered new interface driver uas
[ 30.757456] random: crng init done
[ 30.757497] random: 7 urandom warning(s) missed due to ratelimiting
[ 32.210118] checking generic (1e402000 7f8000) vs hw (0 ffffffff)
[ 32.210164] fb0: switching to vc4drmfb from simple
[ 32.464553] sd 0:0:0:0: Attached scsi generic sg0 type 0
[ 32.494627] Console: switching to colour dummy device 80x30
[ 32.540094] vc4-drm soc:gpu: bound 20400000.hvs (ops vc4_hvs_ops [vc4])
[ 32.627580] Registered IR keymap rc-cec
[ 32.627985] rc rc0: vc4 as /devices/platform/soc/20902000.hdmi/rc/rc0
[ 32.628420] input: vc4 as /devices/platform/soc/20902000.hdmi/rc/rc0/input3
[ 32.630256] vc4_hdmi 20902000.hdmi: Could not register sound card: -517
[ 35.772098] 8021q: 802.1Q VLAN Support v1.8
[ 37.195546] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[ 37.849713] Adding 102396k swap on /var/swap. Priority:-2 extents:1 across:102396k SSFS
[ 38.098418] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[ 38.162973] cfg80211: loaded regulatory.db is malformed or signature is missing/invalid
[ 39.167781] SMSC LAN8700 usb-001:003:01: attached PHY driver [SMSC LAN8700] (mii_bus:phy_addr=usb-001:003:01, irq=POLL)
[ 39.185193] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup
[ 39.199997] smsc95xx 1-1.1:1.0 eth0: Link is Down
[ 40.615867] EXT4-fs (sda1): mounting ext2 file system using the ext4 subsystem
[ 40.677740] EXT4-fs (sda1): warning: mounting unchecked fs, running e2fsck is recommended
[ 40.683680] EXT4-fs (sda1): mounted filesystem without journal. Opts: (null)
[ 41.285740] smsc95xx 1-1.1:1.0 eth0: Link is Up - 100Mbps/Full - flow control off
[ 41.285843] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 42.839994] ICMPv6: process `dhcpcd' is using deprecated sysctl (syscall) net.ipv6.neigh.eth0.retrans_time - use net.ipv6.neigh.eth0.retrans_time_ms instead
[ 49.550904] vc4-drm soc:gpu: bound 20400000.hvs (ops vc4_hvs_ops [vc4])
[ 49.578852] Registered IR keymap rc-cec
[ 49.579259] rc rc0: vc4 as /devices/platform/soc/20902000.hdmi/rc/rc0
[ 49.579718] input: vc4 as /devices/platform/soc/20902000.hdmi/rc/rc0/input4
[ 49.629212] vc4-drm soc:gpu: bound 20902000.hdmi (ops vc4_hdmi_ops [vc4])
[ 49.630003] vc4-drm soc:gpu: bound 20806000.vec (ops vc4_vec_ops [vc4])
[ 49.630816] vc4-drm soc:gpu: bound 20004000.txp (ops vc4_txp_ops [vc4])
[ 49.631485] vc4-drm soc:gpu: bound 20206000.pixelvalve (ops vc4_crtc_ops [vc4])
[ 49.632134] vc4-drm soc:gpu: bound 20207000.pixelvalve (ops vc4_crtc_ops [vc4])
[ 49.632790] vc4-drm soc:gpu: bound 20807000.pixelvalve (ops vc4_crtc_ops [vc4])
[ 49.633297] vc4-drm soc:gpu: bound 20c00000.v3d (ops vc4_v3d_ops [vc4])
[ 49.682293] [drm] Initialized vc4 0.0.0 20140616 for soc:gpu on minor 0
[ 49.813739] Console: switching to colour frame buffer device 240x67
[ 49.856703] vc4-drm soc:gpu: [drm] fb0: vc4drmfb frame buffer device
[ 50.878672] ov5647 10-0036: Consider updating driver ov5647 to match on endpoints
[ 56.206356] unicam 20801000.csi: Wrong width or height 1024x768 (remote pad set to 1296x972)
[ 56.206406] unicam 20801000.csi: Failed to start media pipeline: -22
[ 189.876233] unicam 20801000.csi: Wrong width or height 1296x976 (remote pad set to 1296x972)
[ 189.876282] unicam 20801000.csi: Failed to start media pipeline: -22
libcamera-hello
Quote:

[0:48:45.519938555] [687] INFO Camera camera_manager.cpp:293 libcamera v0.0.0+3156-f4070274 ERROR: *** no cameras available ***

Camera is on; red light can be seen.

Any idea what is happening there? Comments and remarks are welcome.