** Description changed:

  1. u-boot: [2023-04-26 14:34:28.294] run distro_bootcmd
  
  2. disable silent mode in grub menu [2023-04-26 14:34:42.196] GNU GRUB
  version 2.06
  
  3. boot to Linux
  [2023-04-26 14:35:09.115] [ 0.000000] Linux version 6.2.0-18-generic 
(buildd@bos02-arm64-039) (aarch64-linux-gnu-gcc-12 (Ubuntu 12.2.0-17ubuntu1) 
12.2.0, GNU ld (GNU Binutils for Ubuntu) 2.40) #18-Ubuntu SMP PREEMPT_DYNAMIC 
Sun Mar 19 19:49:50 UTC 2023 (Ubuntu 6.2.0-18.18-generic 6.2.6)
  [2023-04-26 14:35:09.115] [ 0.000000] Machine model: MediaTek MT8195 demo 
board
  
  4. lots of error and driver probing deffered. USB, Ethernet, MMC and 
multimedia interfaces.
  Ex: [2023-04-26 14:35:22.624] [ 13.808645] platform 1c014000.merge0: deferred 
probe pending
  
  5. No ethernet and U-disk could be found
  [2023-04-26 14:36:15.548] Unable to find a medium containing a live file 
system
  [2023-04-26 14:36:15.548] Attempt interactive netboot from a URL?
  [2023-04-26 14:36:15.548] yes no (default yes): no
  [2023-04-26 14:36:21.432]
  [2023-04-26 14:36:21.432]
  [2023-04-26 14:36:21.432] BusyBox v1.35.0 (Ubuntu 1:1.35.0-4ubuntu1) built-in 
shell (ash)
  [2023-04-26 14:36:21.432] Enter 'help' for a list of built-in 
commands.
  [2023-04-26 14:36:21.432]
  [2023-04-26 14:36:21.432] (initramfs) Unable to find a medium containing a 
live file system
  
+ 
  6. solution:
  Compare to generic kernel config for arm64
  file: arch/arm64/configs/defconfig
  The following settings should be enabled "built-in" in generic kernel 
settings.
  
  CONFIG_REGULATOR_MT6357=y
  CONFIG_REGULATOR_MT6358=y
  CONFIG_REGULATOR_MT6359=y
  CONFIG_REGULATOR_MT6360=y
  CONFIG_REGULATOR_MT6397=y
+ 
+ 7. effected kernel (5.19~latest)
+ ubuntu kernel for lunar, Kinetic, and Mantic.

-- 
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/2035591

Title:
  [Mediatek] mt8195-demo: Fix regulator kernel setting are missing:
  causes peripheral probe failure for linux (include installer)

Status in linux package in Ubuntu:
  New

Bug description:
  1. u-boot: [2023-04-26 14:34:28.294] run distro_bootcmd

  2. disable silent mode in grub menu [2023-04-26 14:34:42.196] GNU GRUB
  version 2.06

  3. boot to Linux
  [2023-04-26 14:35:09.115] [ 0.000000] Linux version 6.2.0-18-generic 
(buildd@bos02-arm64-039) (aarch64-linux-gnu-gcc-12 (Ubuntu 12.2.0-17ubuntu1) 
12.2.0, GNU ld (GNU Binutils for Ubuntu) 2.40) #18-Ubuntu SMP PREEMPT_DYNAMIC 
Sun Mar 19 19:49:50 UTC 2023 (Ubuntu 6.2.0-18.18-generic 6.2.6)
  [2023-04-26 14:35:09.115] [ 0.000000] Machine model: MediaTek MT8195 demo 
board

  4. lots of error and driver probing deffered. USB, Ethernet, MMC and 
multimedia interfaces.
  Ex: [2023-04-26 14:35:22.624] [ 13.808645] platform 1c014000.merge0: deferred 
probe pending

  5. No ethernet and U-disk could be found
  [2023-04-26 14:36:15.548] Unable to find a medium containing a live file 
system
  [2023-04-26 14:36:15.548] Attempt interactive netboot from a URL?
  [2023-04-26 14:36:15.548] yes no (default yes): no
  [2023-04-26 14:36:21.432]
  [2023-04-26 14:36:21.432]
  [2023-04-26 14:36:21.432] BusyBox v1.35.0 (Ubuntu 1:1.35.0-4ubuntu1) built-in 
shell (ash)
  [2023-04-26 14:36:21.432] Enter 'help' for a list of built-in 
commands.
  [2023-04-26 14:36:21.432]
  [2023-04-26 14:36:21.432] (initramfs) Unable to find a medium containing a 
live file system

  
  6. solution:
  Compare to generic kernel config for arm64
  file: arch/arm64/configs/defconfig
  The following settings should be enabled "built-in" in generic kernel 
settings.

  CONFIG_REGULATOR_MT6357=y
  CONFIG_REGULATOR_MT6358=y
  CONFIG_REGULATOR_MT6359=y
  CONFIG_REGULATOR_MT6360=y
  CONFIG_REGULATOR_MT6397=y

  7. effected kernel (5.19~latest)
  ubuntu kernel for lunar, Kinetic, and Mantic.

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https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2035591/+subscriptions


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