Hi Ben,
Thanks for reaching out.
It appears that the bug has been gone with a kernel upgrade to
6.12.32+bpo-amd64 (and firmware-intel-graphics on 20250410-2~bpo12+1).
Its running on the newer kernel/firmware for several days now without
any issues. So, it was probably a kernel issue (although I don't know
why downgrading the firmware package had worked, too).
So, I guess we can close the issue.
Best
Maximilian
lspci -nnvv:
00:00.0 Host bridge [0600]: Intel Corporation Atom Processor
Z36xxx/Z37xxx Series SoC Transaction Register [8086:0f00] (rev 11)
Subsystem: Intel Corporation Atom Processor Z36xxx/Z37xxx Series SoC
Transaction Register [8086:0f31]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0
Kernel driver in use: iosf_mbi_pci
00:02.0 VGA compatible controller [0300]: Intel Corporation Atom
Processor Z36xxx/Z37xxx Series Graphics & Display [8086:0f31] (rev 11)
(prog-if 00 [VGA con
troller])
DeviceName: Onboard IGD
Subsystem: Intel Corporation Atom Processor Z36xxx/Z37xxx Series
Graphics & Display [8086:0f31]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 103
Region 0: Memory at 90000000 (32-bit, non-prefetchable) [size=4M]
Region 2: Memory at 80000000 (32-bit, prefetchable) [size=256M]
Region 4: I/O ports at e080 [size=8]
Expansion ROM at 000c0000 [virtual] [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: i915
Kernel modules: i915
