Public bug reported:
[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.
** Affects: hwe-next
Importance: Undecided
Status: New
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux-oem-6.1 (Ubuntu)
Importance: Undecided
Status: Invalid
** Affects: linux (Ubuntu Jammy)
Importance: Undecided
Status: Won't Fix
** Affects: linux-oem-6.1 (Ubuntu Jammy)
Importance: Undecided
Status: Confirmed
** Affects: linux (Ubuntu Lunar)
Importance: Undecided
Status: Confirmed
** Affects: linux-oem-6.1 (Ubuntu Lunar)
Importance: Undecided
Status: Invalid
** Tags: oem-priority originate-from-2024337 stella
** Also affects: linux (Ubuntu Jammy)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Lunar)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Jammy)
Status: New => Confirmed
** Changed in: linux (Ubuntu Jammy)
Status: Confirmed => Won't Fix
** Changed in: linux (Ubuntu Lunar)
Status: New => Won't Fix
** Changed in: linux (Ubuntu Lunar)
Status: Won't Fix => Confirmed
** Also affects: linux-oem-6.1 (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux-oem-6.1 (Ubuntu Jammy)
Status: New => Won't Fix
** Changed in: linux-oem-6.1 (Ubuntu Jammy)
Status: Won't Fix => Confirmed
** Changed in: linux-oem-6.1 (Ubuntu Lunar)
Status: New => Invalid
** Changed in: linux-oem-6.1 (Ubuntu)
Status: New => Invalid
** Tags added: oem-priority originate-from-2024337 stella
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https://bugs.launchpad.net/bugs/2028749
Title:
Make TTY switching possible for NVIDIA when it's boot VGA
Status in HWE Next:
New
Status in linux package in Ubuntu:
New
Status in linux-oem-6.1 package in Ubuntu:
Invalid
Status in linux source package in Jammy:
Won't Fix
Status in linux-oem-6.1 source package in Jammy:
Confirmed
Status in linux source package in Lunar:
Confirmed
Status in linux-oem-6.1 source package in Lunar:
Invalid
Bug description:
[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.
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https://bugs.launchpad.net/hwe-next/+bug/2028749/+subscriptions
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