after several minutes, a 3 line error message is output on 2 old original rock64's. network works, I can log in from my local net, and dmesg says:

[   35.867400] Unbalanced IRQ 47 wake disable
[   35.867422] WARNING: CPU: 0 PID: 1580 at kernel/irq/manage.c:900 irq_set_irq_wake+0x108/0x148
[   35.867447] Modules linked in: rfkill joydev snd_soc_spdif_tx gpio_ir_recv rc_core lz4hc cdc_acm lz4 hantro_vpu(C) rockchip_vdec(C) rockchip_iep snd_soc_simple_card v4l2_h264 snd_soc_rockchip_i2s rockchip_rga videobuf2_dma_contig snd_soc_rockchip_pcm snd_soc_hdmi_codec snd_soc_rk3328 snd_soc_simple_card_utils v4l2_mem2mem snd_soc_rockchip_spdif videobuf2_dma_sg videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 snd_soc_core videobuf2_common videodev snd_pcm_dmaengine mc snd_pcm snd_timer snd soundcore cpufreq_dt zram binfmt_misc sch_fq_codel ramoops reed_solomon pstore_blk pstore_zone ip_tables x_tables autofs4 hid_logitech_hidpp hid_logitech_dj realtek dwmac_rk stmmac_platform stmmac lima dw_hdmi_cec pcs_xpcs gpu_sched dw_hdmi_i2s_audio gpio_syscon
[   35.867680] CPU: 0 PID: 1580 Comm: NetworkManager Tainted: G         C        5.15.74-rockchip64 #22.08.6
[   35.867693] Hardware name: Pine64 Rock64 (DT)
[   35.867699] pstate: 800000c5 (Nzcv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[   35.867709] pc : irq_set_irq_wake+0x108/0x148
[   35.867724] lr : irq_set_irq_wake+0x108/0x148
[   35.867734] sp : ffff80000a7e3b30
[   35.867739] x29: ffff80000a7e3b30 x28: ffff00000184d880 x27: 0000000000000000
[   35.867757] x26: 0000000000000000 x25: 0000000000000000 x24: 0000ffffe172c0f8
[   35.867774] x23: 000000000000002f x22: 0000000000000000 x21: 00000000ffffffea
[   35.867790] x20: ffff80000954c7c8 x19: ffff000000711200 x18: 0000000000000001
[   35.867806] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000280
[   35.867822] x14: ffff80000a7e3840 x13: 00000000ffffffea x12: ffff800009b1fd10
[   35.867838] x11: 0000000000000003 x10: ffff800009b07cd0 x9 : ffff800009b07d28
[   35.867855] x8 : 0000000000017fe8 x7 : c0000000ffffefff x6 : 0000000000000001
[   35.867870] x5 : ffff8000f501a000 x4 : 0000000000000000 x3 : 0000000000000002
[   35.867886] x2 : 0000000000000001 x1 : 8cf7ed973ed99a00 x0 : 0000000000000000
[   35.867903] Call trace:
[   35.867908]  irq_set_irq_wake+0x108/0x148
[   35.867920]  stmmac_set_wol+0x74/0x128 [stmmac]
[   35.867985]  dev_ethtool+0x1400/0x20b0
[   35.867998]  dev_ioctl+0x1fc/0x3f8
[   35.868008]  sock_do_ioctl+0xb4/0xf8
[   35.868018]  sock_ioctl+0x2d4/0x3b8
[   35.868027]  __arm64_sys_ioctl+0xa8/0xe8
[   35.868038]  invoke_syscall+0x44/0x108
[   35.868050]  el0_svc_common.constprop.3+0x94/0xf8
[   35.868061]  do_el0_svc+0x24/0x88
[   35.868071]  el0_svc+0x20/0x50
[   35.868080]  el0t_64_sync_handler+0x90/0xb8
[   35.868089]  el0t_64_sync+0x180/0x184
[   35.868099] ---[ end trace b82369d81dab89d6 ]---
[  147.094526] hdmi-audio-codec hdmi-audio-codec.4.auto: Only one simultaneous stream supported!
[  147.095731] hdmi-audio-codec hdmi-audio-codec.4.auto: ASoC: error at snd_soc_dai_startup on i2s-hifi: -22
[  147.096881]  ff000000.i2s-i2s-hifi: soc_pcm_open() failed (-22)
[  147.250755] overlayfs: "xino" feature enabled using 2 upper inode bits.
==================

on both machines.  These have a primary assignment of running octoprint as part of my printer farm and hdmi video

is required.

 

Any clues as to what will restore their video?

 

I am having the same problem and dmesg output with my Ubuntu rock64

I am also getting errors in Xorg.log as described in 

What is the connection ?