Hello, I noticed something in dmesg in re. my HDMI KVM switch woes, and thought I'd post it here in case it is helpful to further root-cause the issue. Note, this occurs with the dtoverlay and max_framebuffers commented out in config.txt (which is the only reliable way for me to use my RPi 5 right now).
The following appeared in dmesg upon switching to another host, and the switching a second time to see if it was repeatable.
The following appeared in dmesg upon switching to another host, and the switching a second time to see if it was repeatable.
Code:
[ 2464.191503] usb 3-1.1: USB disconnect, device number 3[ 2481.665811] usb 3-1.1: new high-speed USB device number 5 using xhci-hcd[ 2481.866856] usb 3-1.1: New USB device found, idVendor=05e3, idProduct=0608, bcdDevice=77.63[ 2481.866863] usb 3-1.1: New USB device strings: Mfr=0, Product=1, SerialNumber=0[ 2481.866866] usb 3-1.1: Product: USB2.0 Hub[ 2481.920226] hub 3-1.1:1.0: USB hub found[ 2481.920481] hub 3-1.1:1.0: 4 ports detected[ 2546.847751] block sda: the capability attribute has been deprecated.[ 2546.855968] WARNING! power/level is deprecated; use power/control instead[ 2547.939862] ------------[ cut here ]------------[ 2547.939868] deprecated, use hwmon sysfs instead[ 2547.939892] WARNING: CPU: 3 PID: 8404 at drivers/firmware/raspberrypi.c:237 get_throttled_show+0x68/0x78[ 2547.939903] Modules linked in: tcp_diag inet_diag snd_seq_dummy snd_hrtimer snd_seq snd_seq_device rfcomm algif_hash algif_skcipher af_alg bnep binfmt_misc brcmfmac_wcc brcmfmac hci_uart brcmutil btbcm sg cfg80211 bluetooth rpivid_hevc(C) pisp_be v4l2_mem2mem aes_ce_blk aes_ce_cipher videobuf2_dma_contig ghash_ce videobuf2_memops gf128mul videobuf2_v4l2 sha2_ce sha256_arm64 sha1_ce ecdh_generic videodev ecc rfkill videobuf2_common libaes mc raspberrypi_hwmon pwm_fan raspberrypi_gpiomem nvmem_rmem rp1_adc uio_pdrv_genirq uio i2c_dev fuse dm_mod ip_tables x_tables ipv6 vc4 snd_soc_hdmi_codec drm_display_helper cec drm_dma_helper drm_kms_helper drm drm_panel_orientation_quirks spidev snd_soc_core snd_compress snd_pcm_dmaengine snd_pcm snd_timer snd backlight spi_bcm2835 gpio_keys[ 2547.939959] CPU: 3 PID: 8404 Comm: rsync Tainted: G C 6.6.20+rpt-rpi-2712 #1 Debian 1:6.6.20-1+rpt1[ 2547.939962] Hardware name: Raspberry Pi 5 Model B Rev 1.0 (DT)[ 2547.939963] pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)[ 2547.939965] pc : get_throttled_show+0x68/0x78[ 2547.939968] lr : get_throttled_show+0x68/0x78[ 2547.939970] sp : ffffc000817dbbe0[ 2547.939971] x29: ffffc000817dbbe0 x28: ffff800101217968 x27: 0000000000400cc0[ 2547.939974] x26: 000000007fffc000 x25: ffff800101217958 x24: 0000000000000000[ 2547.939977] x23: 0000000000003fff x22: ffff80001c5fd8c0 x21: ffff8001005ff810[ 2547.939980] x20: ffff8001005a1500 x19: ffff8001072cc000 x18: 0000000000000000[ 2547.939983] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000[ 2547.939986] x14: 0000000000000000 x13: 64616574736e6920 x12: 7366737973206e6f[ 2547.939988] x11: 6d77682065737520 x10: ffffd000856f6708 x9 : ffffd0008410949c[ 2547.939991] x8 : 00000000ffffefff x7 : ffffd000856f6708 x6 : 80000000fffff000[ 2547.939994] x5 : ffff8001ffb42d48 x4 : 0000000000000000 x3 : ffffb0017a874000[ 2547.939996] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff80001c161ec0[ 2547.939999] Call trace:[ 2547.940000] get_throttled_show+0x68/0x78[ 2547.940003] dev_attr_show+0x28/0x80[ 2547.940006] sysfs_kf_seq_show+0x9c/0x140[ 2547.940010] kernfs_seq_show+0x34/0x48[ 2547.940012] seq_read_iter+0x16c/0x460[ 2547.940014] kernfs_fop_read_iter+0x148/0x1c0[ 2547.940016] vfs_read+0x214/0x2c0[ 2547.940018] ksys_read+0x78/0x118[ 2547.940020] __arm64_sys_read+0x24/0x38[ 2547.940021] invoke_syscall+0x50/0x128[ 2547.940026] el0_svc_common.constprop.0+0x48/0xf0[ 2547.940028] do_el0_svc+0x24/0x38[ 2547.940031] el0_svc+0x40/0xe8[ 2547.940034] el0t_64_sync_handler+0x100/0x130[ 2547.940037] el0t_64_sync+0x190/0x198[ 2547.940039] ---[ end trace 0000000000000000 ]---[ 2547.999374] bdi 0:44: the stable_pages_required attribute has been removed. Use the stable_writes queue attribute instead.[ 2642.886698] usb 3-1.1: USB disconnect, device number 5[ 2650.120684] usb 3-1.1: new high-speed USB device number 6 using xhci-hcd[ 2650.321741] usb 3-1.1: New USB device found, idVendor=05e3, idProduct=0608, bcdDevice=77.63[ 2650.321750] usb 3-1.1: New USB device strings: Mfr=0, Product=1, SerialNumber=0[ 2650.321753] usb 3-1.1: Product: USB2.0 Hub[ 2650.375048] hub 3-1.1:1.0: USB hub found[ 2650.375303] hub 3-1.1:1.0: 4 ports detectedtim1@rpi5:~ $ Statistics: Posted by tim1aust — Fri Mar 22, 2024 6:34 pm