May this help to investigate, I noted this in the log :
[ 1.237736] HEST: Table not found.
[ 1.237738] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
[ 1.238018] \_SB_.PCI0:_OSC invalid UUID
[ 1.238019] _OSC request data:1 8 1f
Hi,
May this help to investigate, I noted this in the log :
[ 1.237736] HEST: Table not found.
[ 1.237738] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
[ 1.238018] \_SB_.PCI0:_OSC invalid UUID
[ 1.238019] _OSC request data:1 8 1f
This one is reported there too :
https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/668148# toshiba Qosmio x505-887
It's also affecting lenovo-g470
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