[14:32] <alkisg> Hi, two schools reported completely corrupted i915 graphics when upgrading from 4.15.0-47-generic to 4.15.0-48-generic:
[14:32] <alkisg> I told them to try the bionic-hwe kernel (4.18) and it works. Is it a known issue, or should I collect logs/file a bug report?
[14:33] <alkisg> Screeshot: http://alkisg.mysch.gr/steki/index.php?action=dlattach;topic=7771.0;attach=5029;image
[14:33] <alkisg> Ah, also it boots with -48 too, but only once; it breaks on reboot; then it works again with cold boot
[14:33] <alkisg> Xorg.0.log with -48 cold boot: http://alkisg.mysch.gr/steki/index.php?action=dlattach;topic=7771.0;attach=5037
[14:34] <alkisg> And dmesg: http://alkisg.mysch.gr/steki/index.php?action=dlattach;topic=7771.0;attach=5038
[14:34] <tjaalton> no idea
[14:34] <alkisg> Ty tjaalton; will collect more info
[14:35] <tjaalton> file a bug against the kernel
[14:35] <alkisg> Thanks
[14:35] <tjaalton> should be easily bisected
[14:35] <alkisg> Both are 32bit installations
[14:36] <alkisg> Will try to reproduce it with a 32bit installation locally
[14:42] <tjaalton> see bug 1819486
[14:42] <tjaalton> only commit to i915 in -48
[14:50] <alkisg> ty, reading