[Bug 2061049] Re: Fix random HuC/GuC initialization failure of Intel i915 driver

** Changed in: linux (Ubuntu Noble)
Status: In Progress => Fix Committed

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https://bugs.launchpad.net/bugs/2061049

Title:
Fix random HuC/GuC initialization failure of Intel i915 driver

Status in HWE Next:
New
Status in linux package in Ubuntu:
New
Status in linux-oem-6.5 package in Ubuntu:
Invalid
Status in linux-oem-6.8 package in Ubuntu:
Invalid
Status in linux source package in Jammy:
New
Status in linux-oem-6.5 source package in Jammy:
Fix Released
Status in linux-oem-6.8 source package in Jammy:
Invalid
Status in linux source package in Noble:
Fix Committed
Status in linux-oem-6.5 source package in Noble:
Invalid
Status in linux-oem-6.8 source package in Noble:
New

Bug description:
[Impact]
i915 error can sometimes be found in kernel message when booting the machine w/ power unplugged
kernel: i915 0000:00:02.0: [drm] *ERROR* GT1: GuC initialization failed -EIO
kernel: i915 0000:00:02.0: [drm] *ERROR* GT1: Enabling uc failed (-5)
kernel: i915 0000:00:02.0: [drm] *ERROR* GT1: Failed to initialize GPU, declaring it wedged!
The GPU won't work with this failure

[Fix]
Backport the upatream fix for allowing slow HuC loading.

[Test]
1. Unplug the power of the laptop and make sure it's charged by battery
2. Cold boot or Warm boot the machine and check the GuC init fail message.
3. Go to settings - > about --> graphics to make sure the GPU information is correct every boot.

[Where problems could occur]
Simply increase the loading time of HuC still get a working system. Should be low risk of regression.

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