[Bug 2067658] Re: Driver issue for Intel Alder Lake-P GT2 [Iris Xe Graphics] appears in Noble Numbat

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: linux (Ubuntu)
Status: New => Confirmed

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https://bugs.launchpad.net/bugs/2067658

Title:
Driver issue for Intel Alder Lake-P GT2 [Iris Xe Graphics] appears in
Noble Numbat

Status in linux package in Ubuntu:
Confirmed

Bug description:
After upgrading to 24.04 LTS (Noble Numbat) from lubuntu 23.10 the system no longer boots
except in safe mode. A fresh install of Noble Numbat was done, but this did not resolve the problem.

In the grub file /etc/default/grub


GRUB_CMDLINE_LINUX_DEFAULT='quiet splash' was changed to
GRUB_CMDLINE_LINUX_DEFAULT='quiet splash nomodeset '

and now the system boots.


$ sudo sudo lshw -c video
*-display
description: VGA compatible controller
product: Alder Lake-P GT2 [Iris Xe Graphics]
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
logical name: /dev/fb0
version: 0c
width: 64 bits
clock: 33MHz
capabilities: pciexpress msi pm vga_controller bus_master cap_list fb
configuration: depth=32 latency=0 mode=1920x1200 visual=truecolor xres=1920 yres=1200
resources: iomemory:600-5ff iomemory:400-3ff memory:603c000000-603cffffff memory:4000000000-400fffffff ioport:2000(size=64) memory:c0000-dffff memory:4010000000-4016ffffff memory:4020000000-40ffffffff
*-graphics
product: simpledrmdrmfb
physical id: 2
logical name: /dev/fb0
capabilities: fb
configuration: depth=32 resolution=1920,1200

$ inxi -G
Graphics:
Device-1: Intel Alder Lake-P GT2 [Iris Xe Graphics] driver: N/A
Device-2: Luxvisions Innotech Integrated Camera driver: uvcvideo type: USB
Display: x11 server: X.Org v: 21.1.11 driver: X: loaded: modesetting,vesa
unloaded: fbdev dri: swrast gpu: N/A resolution: 1920x1200~60Hz
API: EGL v: 1.5 drivers: kms_swrast,swrast
platforms: gbm,x11,surfaceless,device
API: OpenGL v: 4.5 vendor: mesa v: 24.0.5-1ubuntu1 renderer: llvmpipe
(LLVM 17.0.6 256 bits)


It would appear that the driver support for Alder Lake-P GT2 [Iris Xe Graphics]
has changed between lubuntu 23.10 and 24.04 LTS (Noble Numbat).

This issue was not observed in lubuntu 23.10.

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