No handler for Region error. Graphics system don't start.

[Jose Luis Alarcon Sanchez]

Hi list!.

Since yesterday i get this lines booting Ubuntu 21.04:

Jun 18 15:55:18 Shenzhou kernel: [  171.352734] rfkill: input handler disabled
Jun 18 15:57:14 Shenzhou kernel: [  288.111362] ACPI Error: No handler for Region [RCM0] (000000007477e2be) [SystemCMOS] (20200528/evregion-129)
Jun 18 15:57:14 Shenzhou kernel: [  288.111377] ACPI Error: Region SystemCMOS (ID=5) has no handler (20200528/exfldio-261)
Jun 18 15:57:14 Shenzhou kernel: [  288.111393] No Local Variables are initialized for Method [ESDT]
Jun 18 15:57:14 Shenzhou kernel: [  288.111396] No Arguments are initialized for method [ESDT]
Jun 18 15:57:14 Shenzhou kernel: [  288.111400] ACPI Error: Aborting method \_SB.WMID.ESDT due to previous error (AE_NOT_EXIST) (20200528/psparse-529)
Jun 18 15:57:14 Shenzhou kernel: [  288.111414] ACPI Error: Aborting method \_SB.PCI0.LPC0.EC0._Q42 due to previous error (AE_NOT_EXIST) (20200528/psparse-529)

and then all stop, Graphics don't start. I have the consoles alt+Fx running and working aparently well.

I don't know what to do for solve this.

Please, any help?.

TIA.

Regards.
Jose Luis.

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