Created attachment 145870 [details]
dmesg+logs from netconsole
Steps to reproduce the issue: the screen becomes black and machine hangs after sequence:
modprobe i915 modeset=1
How often: every time
system architecture: x86_64
kernel version: 5.4.0-rc4 from drm-tip: commit 90d6ad2cbeadd27e867df4e649d61f14b4ac4b77
Linux distribution: Debian 10
Machine or mother board model: Dell Inspiron 3552
Display connector: build in screen
lspci -v -n:
00:02.0 0300: 8086:22b1 (rev 35) (prog-if 00 [VGA controller])
Flags: bus master, fast devsel, latency 0, IRQ 11
Memory at 90000000 (64-bit, non-prefetchable) [size=16M]
Memory at 80000000 (64-bit, prefetchable) [size=256M]
I/O ports at f000 [size=64]
[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
Capabilities: [d0] Power Management version 2
Capabilities:  MSI: Enable- Count=1/1 Maskable- 64bit-
Capabilities: [b0] Vendor Specific Information: Len=07 <?>
Kernel modules: i915
I have to boot with i915.modeset=0. In other case machine hangs during startup process.
I can reproduce this situation with rmmod i915, and then modprobe i915 modeset=1.
Could you please help me? Thank you.
@Imre, any suggestions here?