** Description changed: SRU justification: [Impact] OLED backlight is not supported by the current kernel. - Sometimes the screen goes to black screen when enabled dpcd backlight support. + brightness can't be adjusted. [Fix] - Fix max brightness value and enable dpcd to support adjusting brightness on OLED. - Force enable backlight again to fix black screen issue. + Fix max brightness value; + Follow samsung panel's spec to enable dpcd and + support adjusting brightness on OLED. [Test] Verified on several laptops, backlight on and brightness is adjusted. [Regression Potential] Medium, change is limited to specific hardware feature. Verified on no dpcd support laptops, no regression found yet.
** Summary changed: - [SRU][B/OEM-B/OEM-OSP1/D/E]UBUNTU: SAUCE: enable adjusting brightness on some samsung OLED panels + [SRU][OEM-B]UBUNTU: SAUCE: enable adjusting brightness on some samsung OLED panels -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1844798 Title: [SRU][OEM-B]UBUNTU: SAUCE: enable adjusting brightness on some samsung OLED panels Status in linux package in Ubuntu: Confirmed Bug description: SRU justification: [Impact] OLED backlight is not supported by the current kernel. brightness can't be adjusted. [Fix] Fix max brightness value; Follow samsung panel's spec to enable dpcd and support adjusting brightness on OLED. [Test] Verified on several laptops, backlight on and brightness is adjusted. [Regression Potential] Medium, change is limited to specific hardware feature. Verified on no dpcd support laptops, no regression found yet. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1844798/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
