** Description changed: [Impact] The display output(DP/HDMI) on the USB type-c hub doesn't work. No display output device could be found after the monitor is plugged into the hub. [Fix] Intel provide a new patch to fix this issue on ADL platforms. [Test] Verified on ADL platform with different type-c hubs, the display output works. [Where problems could occur] + The TCSS_DDI_STATUS register is indexed by tc_port not by the FIA port index. So, this patch is more like a fix and only affect ADL platforms. And as the commit log describes, the value is wrong on TC#3/4 ports, so it won't affect the origin working ports.
-- 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/1959061 Title: The display output on type-c hub doesn't work on ADL platform Status in HWE Next: New Status in linux package in Ubuntu: In Progress Status in linux-oem-5.14 package in Ubuntu: Invalid Status in linux source package in Focal: Invalid Status in linux-oem-5.14 source package in Focal: In Progress Status in linux source package in Jammy: In Progress Status in linux-oem-5.14 source package in Jammy: Invalid Bug description: [Impact] The display output(DP/HDMI) on the USB type-c hub doesn't work. No display output device could be found after the monitor is plugged into the hub. [Fix] Intel provide a new patch to fix this issue on ADL platforms. [Test] Verified on ADL platform with different type-c hubs, the display output works. [Where problems could occur] The TCSS_DDI_STATUS register is indexed by tc_port not by the FIA port index. So, this patch is more like a fix and only affect ADL platforms. And as the commit log describes, the value is wrong on TC#3/4 ports, so it won't affect the origin working ports. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1959061/+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
