This bug is awaiting verification that the linux-oem-5.17/5.17.0-1025.26 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-jammy' to 'verification-done-jammy'. If the problem still exists, change the tag 'verification-needed-jammy' to 'verification-failed-jammy'.
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! ** Tags added: kernel-spammed-jammy-linux-oem-5.17 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.14 in Ubuntu. https://bugs.launchpad.net/bugs/1978986 Title: [SRU][J/OEM-5.17][PATCH 0/1] Fix oled brightness set above frame- average luminance Status in HWE Next: Fix Released Status in linux package in Ubuntu: In Progress Status in linux-oem-5.14 package in Ubuntu: Invalid Status in linux-oem-5.17 package in Ubuntu: Invalid Status in linux-oem-6.0 package in Ubuntu: Invalid Status in linux-oem-5.14 source package in Focal: Fix Released Status in linux source package in Jammy: Fix Released Status in linux-oem-5.14 source package in Jammy: Invalid Status in linux-oem-5.17 source package in Jammy: Fix Committed Status in linux-oem-6.0 source package in Jammy: Fix Released Status in linux source package in Kinetic: Fix Committed Status in linux-oem-5.14 source package in Kinetic: Invalid Status in linux-oem-5.17 source package in Kinetic: Invalid Status in linux-oem-6.0 source package in Kinetic: Invalid Bug description: [Impact] The brightness is not changed obviously during 200 to 255 on AMD or 400 to 512 on Intel.. [Fix] Read HDR meta to detect the max and min luminance. max_cll defines the content light luminance for individual pixel. max_fall defines frame-average level luminance. Use max_fall value instead of max_cll as a limit for brightness control. [Test] Verified on AMD Cezanne, Barcelo, Rembrandt and Intel ADL, also on LCD panel and OLED panel. The brightness is changed more obivously on OLED panel, and no affect on LCD panel. [Where problems could occur] Low risk, It may cause the max brightness can't be set. All 3 patches are in drm-misc tree. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1978986/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
