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October 11th, 2019 20:00

ACPI errors with new bios in Dell Precision 7540

I have a new Dell Precision 7540 and my kernel logs are filled with errors.

10/11/19 9:29 PM ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.PEG0.PEGP.BRT6.LCD], AE_NOT_FOUND (20190703/psargs-330)


I also have many more errors. I really like this laptop so I hope these can be fixed.

I have these too. 

10/11/19 5:33 PM iwlwifi 0000 e:00.0: BIOS contains WGDS but no WRDS

10/11/19 5:33 PM nvme nvme0 missing or invalid SUBNQN field.

10/11/19 5:33 PM i8042 PNP: PS/2 appears to have AUX port disabled, if this is incorrect please boot with i8042.nopnp

10/11/19 5:33 PM acpi PNP0C14 2: duplicate WMI GUID 05901221-D566-11D1-B2F0-00A0C9062910 (first instance was on PNP0C14:01)

10/11/19 5:33 PM i801_smbus 0000 0:1f.4: Accelerometer lis3lv02d is present on SMBus but its address is unknown, skipping registration

10/11/19 5:33 PM iTCO_wdt iTCO_wdt can't request region for resource [mem 0x00c5fffc-0x00c5ffff]

10/11/19 5:33 PM iTCO_wdt probe of iTCO_wdt failed with error -16

10/11/19 5:33 PM [drm] BIOS signature incorrect 0 0

10/11/19 5:33 PM [drm spcon_init [i915]] *ERROR* Failed to probe lspcon

This is not all. Oh and I also have the newest Bios installed. When I received the laptop it had a bios update.

The very first Ubuntu update failed.

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