While im booting ubuntu 18.04 it showing this....help me
by Nilesh k from LinuxQuestions.org on (#56BTJ)
ACPI Error:no pointer back to namespace node in package(ptrval)(20170831/dsargs-337)
ACPI Error:no pointer back to namespace node in package(ptrval)(20170831/dsargs-337)
ACPI Error:no pointer back to namespace node in package(ptrval)(20170831/dsargs-337)
couldn't get size:0x0000000000000000e
[drm:intel_bios_init [i915]] *ERROR* Unexpexted child device config size 39
elantech_send_cmd query 0x02 failed
failed to query capabilities
ACPI Error:no pointer back to namespace node in package(ptrval)(20170831/dsargs-337)
ACPI Error:no pointer back to namespace node in package(ptrval)(20170831/dsargs-337)
couldn't get size:0x0000000000000000e
[drm:intel_bios_init [i915]] *ERROR* Unexpexted child device config size 39
elantech_send_cmd query 0x02 failed
failed to query capabilities