[08:16] <alkisg> Hi, so far 3 schools reported black screen+hang after upgrading from 4.15.0-47 to -48+: http://alkisg.mysch.gr/steki/index.php?action=dlattach;topic=7771.0;attach=5029;image
[08:16] <alkisg> But when they installed linux-generic-hwe, the problem was gone, so I'm not sure it's worth it to pinpoint the regression;
[08:16] <alkisg> so I'm just mentioning it in case it becomes more frequent...
[08:34] <tjaalton> alkisg: ancient hw?
[08:34] <tjaalton> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1819486
[08:34] <ubottu> Launchpad bug 1819486 in linux (Ubuntu) "Crash from :i915 module with 4.15.0-46-generic using multi-display" [Undecided,Confirmed]
[08:35] <tjaalton> assuming it's i915
[08:38] <alkisg> dimitris@HPEliteDesk:~$ lspci -nn -k | grep -A 2 VGA
[08:38] <alkisg> 00:02.0 VGA compatible controller [0300]: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [8086:0412] (rev 06)	Subsystem: Hewlett-Packard Company Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [103c:18e5]	Kernel driver in use: i915
[08:38] <alkisg> tjaalton: that's the only info I have, from one of those schools
[08:39] <alkisg> They didn't have any issues up to -48 though; this issue mentions that -46 had a problem...
[08:41] <tjaalton> that's something else then and not related to graphics
[08:42] <alkisg> Thank you tjaalton; if it becomes more frequent I'll have a deeper look
[08:42] <tjaalton> file a bug
[08:45] <alkisg> I don't feel well to file bugs when it's not easy to provide feedback; if I can reproduce in the office that's easy;
[08:45] <alkisg> if not, I VNC to the school, but e.g. now that they had that easy workaround with -hwe, they wouldn't want the downtime involved to send a lot of debug information, as it usually means teachers can't give lessons then
[08:45] <alkisg> So they are only very happy to give debug info when they don't have workarounds :D
[08:46] <tjaalton> k