Hello.
I've upgraded from Debian 10 to Debian 11.
I'm using gdm3 display manager and XFCE desktop.
After upgrade to Debian 11 now when I'm trying to login via gdm3 to
my xfce session, I've got a gray screen for 2.5 minutes (without a mouse),
completely frozen. Then xfce logins ok and no problem.
It happens every time with xfce.
I created a new pure user. But login process is also hangs for 2.5 minutes.
Gnome desktop logins ok.

I tried to examine logs, but I could not figure out the reason of such hanging/timeout.

My video card:
VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller (rev 06) (prog-if 00 [VGA controller])
	DeviceName:  Onboard IGD
	Subsystem: ASUSTeK Computer Inc. Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller
	Flags: bus master, fast devsel, latency 0, IRQ 31
	Memory at f7800000 (64-bit, non-prefetchable) [size=4M]
	Memory at e0000000 (64-bit, prefetchable) [size=256M]
	I/O ports at f000 [size=64]
	Expansion ROM at 000c0000 [virtual] [disabled] [size=128K]
	Capabilities: <access denied>
	Kernel driver in use: i915
	Kernel modules: i915

I'm ready to attach all neccessary logs.

Thank you.

Best regards,
Vladimir.