Make TTY switching possible for NVIDIA when it's boot VGA

[Kai-Heng Feng]

[Impact]
TTY switching is not possible on some workstations when iGPU is present and NVIDIA GFX is boot VGA. On that case, fbdev /dev/fb* is not created.

[Fix]
Find the correct boot VGA and remove overlapped aperture (BAR), so fbdev can be created properly.

[Test]
Once the fix gets applied, /dev/fb0 is present and TTY switching works.

[Where problems could occur]
The fix is a major overhaul over resource management on video apertures (BAR), so the boot VGA discovery might change and different aperture might be evicted.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is awaiting verification that the linux/6.2.0-30.30 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-lunar-linux' to 'verification-done-lunar-linux'. If the problem still exists, change the tag 'verification-needed-lunar-linux' to 'verification-failed-lunar-linux'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 2028749

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is awaiting verification that the linux-oem-6.1/6.1.0-1021.21 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy-linux-oem-6.1' to 'verification-done-jammy-linux-oem-6.1'. If the problem still exists, change the tag 'verification-needed-jammy-linux-oem-6.1' to 'verification-failed-jammy-linux-oem-6.1'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is awaiting verification that the linux-nvidia-6.2/6.2.0-1010.10 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy-linux-nvidia-6.2' to 'verification-done-jammy-linux-nvidia-6.2'. If the problem still exists, change the tag 'verification-needed-jammy-linux-nvidia-6.2' to 'verification-failed-jammy-linux-nvidia-6.2'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-oem-6.1 - 6.1.0-1021.21

---------------
linux-oem-6.1 (6.1.0-1021.21) jammy; urgency=medium

  * jammy/linux-oem-6.1: 6.1.0-1021.21 -proposed tracker (LP: #2030428)

  * Packaging resync (LP: #1786013)
    - [Packaging] resync update-dkms-versions helper

  * Jammy update: v6.1.46 upstream stable release (LP: #2032632)
    - gcc-plugins: Reorganize gimple includes for GCC 13
    - Revert "loongarch/cpu: Switch to arch_cpu_finalize_init()"
    - tpm: Disable RNG for all AMD fTPMs
    - tpm: Add a helper for checking hwrng enabled
    - ksmbd: validate command request size
    - ksmbd: fix wrong next length validation of ea buffer in smb2_set_ea()
    - KVM: SEV: snapshot the GHCB before accessing it
    - KVM: SEV: only access GHCB fields once
    - wifi: nl80211: fix integer overflow in nl80211_parse_mbssid_elems()
    - wifi: rtw89: fix 8852AE disconnection caused by RX full flags
    - selftests: forwarding: Set default IPv6 traceroute utility
    - wireguard: allowedips: expand maximum node depth
    - mmc: moxart: read scr register without changing byte order
    - ipv6: adjust ndisc_is_useropt() to also return true for PIO
    - selftests: mptcp: join: fix 'delete and re-add' test
    - selftests: mptcp: join: fix 'implicit EP' test
    - mptcp: avoid bogus reset on fallback close
    - mptcp: fix disconnect vs accept race
    - dmaengine: pl330: Return DMA_PAUSED when transaction is paused
    - net: mana: Fix MANA VF unload when hardware is unresponsive
    - riscv/kexec: load initrd high in available memory
    - riscv,mmio: Fix readX()-to-delay() ordering
    - riscv/kexec: handle R_RISCV_CALL_PLT relocation type
    - nvme-pci: add NVME_QUIRK_BOGUS_NID for Samsung PM9B1 256G and 512G
    - drm/nouveau/gr: enable memory loads on helper invocation on all channels
    - drm/nouveau/nvkm/dp: Add workaround to fix DP 1.3+ DPCD issues
    - drm/shmem-helper: Reset vma->vm_ops before calling dma_buf_mmap()
    - drm/amdgpu: fix possible UAF in amdgpu_cs_pass1()
    - drm/amd/display: check attr flag before set cursor degamma on DCN3+
    - drm/amdgpu: add S/G display parameter
    - drm/amd: Disable S/G for APUs when 64GB or more host memory
    - drm/amd/display: limit DPIA link rate to HBR3
    - cpuidle: dt_idle_genpd: Add helper function to remove genpd topology
    - hwmon: (pmbus/bel-pfe) Enable PMBUS_SKIP_STATUS_CHECK for pfe1100
    - radix tree test suite: fix incorrect allocation size for pthreads
    - nilfs2: fix use-after-free of nilfs_root in dirtying inodes via iput
    - drm/amd/pm: fulfill swsmu peak profiling mode shader/memory clock settings
    - drm/amd/pm: expose swctf threshold setting for legacy powerplay
    - drm/amd/pm: fulfill powerplay peak profiling mode shader/memory clock
      settings
    - drm/amd/pm: avoid unintentional shutdown due to temperature momentary
      fluctuation
    - drm/amd/display: Handle virtual hardware detect
    - drm/amd/display: Add function for validate and update new stream
    - drm/amd/display: Handle seamless boot stream
    - drm/amd/display: Update OTG instance in the commit stream
    - drm/amd/display: Avoid ABM when ODM combine is e...

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is awaiting verification that the linux-starfive/6.2.0-1004.5 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-lunar-linux-starfive' to 'verification-done-lunar-linux-starfive'. If the problem still exists, change the tag 'verification-needed-lunar-linux-starfive' to 'verification-failed-lunar-linux-starfive'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is awaiting verification that the linux-aws-6.2/6.2.0-1013.13~22.04.1 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy-linux-aws-6.2' to 'verification-done-jammy-linux-aws-6.2'. If the problem still exists, change the tag 'verification-needed-jammy-linux-aws-6.2' to 'verification-failed-jammy-linux-aws-6.2'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is awaiting verification that the linux-azure/6.2.0-1013.13 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-lunar-linux-azure' to 'verification-done-lunar-linux-azure'. If the problem still exists, change the tag 'verification-needed-lunar-linux-azure' to 'verification-failed-lunar-linux-azure'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

[Brian Murray (brian-murray)]

Ubuntu 23.04 (Lunar Lobster) has reached end of life, so this bug will not be fixed for that specific release.