Bug#1057642: linux-image-6.5.0-5-amd64 still can't boot with Dell T140

[Ivan Sergio Borgonovo <ivan.s.b@webthatworks.it>]

Package: linux-image-6.5.0-5-amd64
Version: 6.5.13-1

The whole series of 6.5 kernels can't boot with Dell T140.

Even this new version stops at loading initial ramdisk.

Last working version was linux-image-6.4.0-4-amd64 6.4.13-1.

Frank Lück reported to me personally

«

Hello,

is seems to depend on the CPU. This one will only boot with 
DIS_UCODE_LDR in grub command line.

cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 94
model name      : Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz
stepping        : 3
microcode       : 0x74
cpu MHz         : 1200.082
cache size      : 8192 KB

»

But this doesn't seem to be the case with my CPU, since adding 
DIS_UCODE_LDR doesn't make a difference.

vendor_id       : GenuineIntel
cpu family      : 6
model           : 158
model name      : Intel(R) Pentium(R) Gold G5420 CPU @ 3.80GHz
stepping        : 10
microcode       : 0xf4

All possible firmware including BIOS were updated to the last available.

hope it helps

--
Ivan Sergio Borgonovo
https://www.webthatworks.it https://www.borgonovo.net