Public bug reported:

I have old MacBook with broken main Graphic Controller
(a well-known hardware issue https://discussions.apple.com/thread/251049873 ).

So I switch to use Integrated Graphics Controller.

I am using Ubuntu 18.04.6 LTS and after an 'apt update' laptop doesn't boot 
(freeze during boot).
I looked for latest updated packages and I found:
 
linux-image-4.15.0-192-generic             4.15.0-192.203 amd64
=>
linux-image-4.15.0-193-generic             4.15.0-193.204 amd64

So, MacBook boots linux-image-4.15.0-192-generic correctly, but it
doesn't boot with newer kernels (4.15.0-193.204,4.15.0-194.205,
4.15.0-196.207)

I could not find which change is included in newer kernels that did this
issue.

How could I support about this issue?


PD:
Added bellow some additional information and attached 'lspci-vnvn.log' file

----------------
$ sudo lshw
macbookpro                  
    description: Notebook
    product: MacBookPro8,2 (System SKU#)
    vendor: Apple Inc.
...

----------------

lspci-vnvn.log

00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core 
Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 
00 [VGA controller])
        Subsystem: Apple Inc. 2nd Generation Core Processor Family Integrated 
Graphics Controller [106b:00dc]
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Latency: 0

----------------

$ lsb_release -rd
Description:    Ubuntu 18.04.6 LTS
Release:        18.04

----------------

$ cat /proc/version
Linux version 4.15.0-192-generic (buildd@lcy02-amd64-029) (gcc version 7.5.0 
(Ubuntu 7.5.0-3ubuntu1~18.04)) #203-Ubuntu SMP Wed Aug 10 17:40:03 UTC 2022

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "sudo lspci -vnvn > lspci-vnvn.log"
   
https://bugs.launchpad.net/bugs/1996092/+attachment/5630095/+files/lspci-vnvn.log

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1996092

Title:
  Macbook boots with linux-image-4.15.0-192-generic (4.15.0-192.203) but
  freezes with newer kernels (4.15.0-193.204,4.15.0-194.205,
  4.15.0-196.207)

Status in linux package in Ubuntu:
  New

Bug description:
  I have old MacBook with broken main Graphic Controller
  (a well-known hardware issue https://discussions.apple.com/thread/251049873 ).

  So I switch to use Integrated Graphics Controller.

  I am using Ubuntu 18.04.6 LTS and after an 'apt update' laptop doesn't boot 
(freeze during boot).
  I looked for latest updated packages and I found:
   
  linux-image-4.15.0-192-generic             4.15.0-192.203 amd64
  =>
  linux-image-4.15.0-193-generic             4.15.0-193.204 amd64

  So, MacBook boots linux-image-4.15.0-192-generic correctly, but it
  doesn't boot with newer kernels (4.15.0-193.204,4.15.0-194.205,
  4.15.0-196.207)

  I could not find which change is included in newer kernels that did
  this issue.

  How could I support about this issue?

  
  PD:
  Added bellow some additional information and attached 'lspci-vnvn.log' file

  ----------------
  $ sudo lshw
  macbookpro                  
      description: Notebook
      product: MacBookPro8,2 (System SKU#)
      vendor: Apple Inc.
  ...

  ----------------

  lspci-vnvn.log

  00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation 
Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) 
(prog-if 00 [VGA controller])
        Subsystem: Apple Inc. 2nd Generation Core Processor Family Integrated 
Graphics Controller [106b:00dc]
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- 
<MAbort- >SERR- <PERR- INTx-
        Latency: 0

  ----------------

  $ lsb_release -rd
  Description:  Ubuntu 18.04.6 LTS
  Release:      18.04

  ----------------

  $ cat /proc/version
  Linux version 4.15.0-192-generic (buildd@lcy02-amd64-029) (gcc version 7.5.0 
(Ubuntu 7.5.0-3ubuntu1~18.04)) #203-Ubuntu SMP Wed Aug 10 17:40:03 UTC 2022

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