Navi24 RX6300 light up issue on 6.8 kernel
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
New
|
Undecided
|
Unassigned | ||
linux (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Noble |
Fix Released
|
Medium
|
AceLan Kao |
Bug Description
[Impact]
Navi24 (specific customer SKU of RX6300) had problems with lighting up display on 6.8 kernel.
[Fix]
Mario@AMD looked at issue and it is caused by this commit in 6.8-rc1:
e57cd73f971194e
It has been fixed by this commit in 6.9-rc1:
f0ec30549a2b ("drm/amd/display: Ensure populate uclk in bb construction")
[Test]
Boot up the machine with AMD RX6300 gfx, it should display well.
[Where problems could occur]
The patch modifies how optimal DCFCLK (display controller fabric clock) and UCLK (memory clock) values are calculated and paired. This could potentially lead to suboptimal clock settings in some scenarios, especially for low bandwidth cases. The comment mentions this is specifically needed for DCN303 due to low memory bandwidth, but it may have unintended consequences for other configurations.
CVE References
- 2024-42284
- 2024-42301
- 2024-44987
- 2024-44998
- 2024-46713
- 2024-46722
- 2024-46723
- 2024-46724
- 2024-46725
- 2024-46735
- 2024-46737
- 2024-46738
- 2024-46739
- 2024-46740
- 2024-46741
- 2024-46743
- 2024-46744
- 2024-46745
- 2024-46746
- 2024-46747
- 2024-46749
- 2024-46750
- 2024-46751
- 2024-46752
- 2024-46753
- 2024-46754
- 2024-46755
- 2024-46756
- 2024-46757
- 2024-46758
- 2024-46759
- 2024-46760
- 2024-46761
- 2024-46762
- 2024-46763
- 2024-46765
- 2024-46766
- 2024-46767
- 2024-46768
- 2024-46770
- 2024-46771
- 2024-46772
- 2024-46773
- 2024-46774
- 2024-46775
- 2024-46776
- 2024-46777
- 2024-46778
- 2024-46779
- 2024-46780
- 2024-46781
- 2024-46782
- 2024-46783
- 2024-46784
- 2024-46785
- 2024-46786
- 2024-46787
- 2024-46788
- 2024-46791
- 2024-46792
- 2024-46793
- 2024-46794
- 2024-46795
- 2024-46797
- 2024-46798
- 2024-46822
- 2024-46823
- 2024-46824
- 2024-46825
- 2024-46826
- 2024-46827
- 2024-46828
- 2024-46829
- 2024-46830
- 2024-46831
- 2024-46832
- 2024-46834
- 2024-46835
- 2024-46836
- 2024-46838
- 2024-46840
- 2024-46841
- 2024-46842
- 2024-46843
- 2024-46844
- 2024-46845
- 2024-46846
- 2024-46847
- 2024-46848
- 2024-47663
- 2024-47664
- 2024-47665
- 2024-47666
- 2024-47667
- 2024-47668
- 2024-47669
Changed in linux (Ubuntu Noble): | |
status: | New → In Progress |
assignee: | nobody → AceLan Kao (acelankao) |
tags: | added: amd oem-priority originate-from-2084478 |
tags: | added: originate-from-2078993 |
description: | updated |
Changed in linux (Ubuntu Noble): | |
importance: | Undecided → Medium |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu): | |
status: | New → Fix Released |
tags: | added: originate-from-2084517 stella |
tags: |
added: verification-done-noble-linux removed: verification-needed-noble-linux |
This bug is awaiting verification that the linux/6.8.0-50.51 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- noble-linux' to 'verification- done-noble- linux'. If the problem still exists, change the tag 'verification- needed- noble-linux' to 'verification- failed- noble-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!