No signal TV kernel 5.10.46

[vlad34]

Hi,

I updated kernel Raspberrypi OS to 5.10.46 on my raspberry pi 4 (4Go), the reboot cause no signal (not screen) for the TV in console boot mode. (HDMI connection)

I downgrade kernel to 5.10.44 , it's works the signal on the TV.

The problem is with upgrading to kernel 5.10.46.

Good day.

[popcornmix]

Are you using the kms driver? Any other non-default settings? When working what resolution/framerate are you using on display? Can you ssh in when showing no signal and getdmesg output? Can you identify the first commit with the issue (using rpi-update <hash> with hash from https://github.com/Hexxeh/rpi-update/commits

[pelwell]

Please include the content of /boot/cmdline.txt.

[vlad34]

I reinstalled the 5.10.46 kernel with rpi-update and I have the problem again

@popcornmix,

I don't use the KMS driver, I run on the legacy driver, I think...

1920x1080@60

Get dmesg output https://pastebin.com/ybW2uHer

Hash first commit issue : 23fd671886ba071e04e9787835a05dfc84137679

My config /boot/config.txt https://pastebin.com/rktAh5NE

$ lsb_release -a

Distributor ID: Raspbian Description: Raspbian GNU/Linux 10 (buster) Release: 10 Codename: buster

@pelwell

cmdline.txt:

dwc_otg.lpm_enable=0 console=serial0,115200 console=tty1 root=PARTUUID=330c27f0-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait

Thanks,

[alanbork]

you are running fkms. this is probably a dupe of https://github.com/raspberrypi/linux/issues/4428.

[popcornmix]

Can you try with latest rpi-update kernel?

[vlad34]

@popcornmix

It's works!

Thanks. 😁