** Changed in: linux-oem-6.1 (Ubuntu Mantic)
Status: New => Invalid
** Changed in: linux-oem-6.1 (Ubuntu Lunar)
Status: New => Invalid
** Changed in: linux-oem-6.1 (Ubuntu Kinetic)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/2027957
Title:
Fix AMDGPU: the screen freeze with W7500
Status in HWE Next:
New
Status in linux package in Ubuntu:
In Progress
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:
In Progress
Status in linux source package in Kinetic:
Won't Fix
Status in linux-oem-6.1 source package in Kinetic:
Invalid
Status in linux source package in Lunar:
In Progress
Status in linux-oem-6.1 source package in Lunar:
Invalid
Status in linux source package in Mantic:
In Progress
Status in linux-oem-6.1 source package in Mantic:
Invalid
Bug description:
[impact]
While booting into OOBE, the screen freeze [AMD W7500 only]
[fix]
AMDGPU would allocate pcie gen/lane dynamically after ASPM is enabled.
Intel CPU may not support the dynamic lane/speed switching.
Solution is,
- Detect Intel x86 systems that don't support dynamic switching
- Override the input caps to maximum supported for that system
- Force all PCIe levels to use the same settings, rather than try to
configure each level differently.
[test cases]
1. boot with w7500
2. the screen doesn't freeze and can't find the error message in dmesg.
"amdgpu: [drm] *ERROR* [CRTC:72:crtc-0] flip_done timed out"
[where the issue could happen]
low, this could lead issue when setting higher speeds than supported.
[Misc]
1. jammy, amdgpu isn't loaded on this platform with 5.15-73-generic.
2. kinetic, amdgpu failed to probe the vga controller with 5.19-46-generic.
3. Passed cbd build against Mantic&Lunar.
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