According to the upstream developers, support for your hardware in amdgpu is experimental and they do not recommend enabling it. I've prepared a test build with this disabled, which will result in falling back to the radeon driver. Please install the appropriate debs for your architecture from the link below and report back whether or not this resolves your display issues. Thanks!
http://people.canonical.com/~sforshee/lp1510405/ ** Also affects: linux (Ubuntu) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Wily) Importance: Undecided => Medium ** Changed in: linux (Ubuntu Wily) Status: New => Incomplete ** Changed in: linux (Ubuntu Wily) Assignee: (unassigned) => Seth Forshee (sforshee) ** Changed in: linux (Ubuntu Xenial) Importance: Undecided => Medium ** Changed in: linux (Ubuntu Xenial) Assignee: (unassigned) => Seth Forshee (sforshee) ** Changed in: linux-firmware (Ubuntu Wily) Status: In Progress => Invalid ** Changed in: linux-firmware (Ubuntu Xenial) Status: In Progress => Invalid -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-firmware in Ubuntu. https://bugs.launchpad.net/bugs/1510405 Title: Direct firmware load for radeon/kaveri_sdma1.bin failed with error -2 Status in linux package in Ubuntu: Incomplete Status in linux-firmware package in Ubuntu: Invalid Status in linux source package in Wily: Incomplete Status in linux-firmware source package in Wily: Invalid Status in linux source package in Xenial: Incomplete Status in linux-firmware source package in Xenial: Invalid Bug description: Version 1.149 of the package does not have /lib/firmware/radeon/kaveri_sdma1.bin needed for the latest AMD DRM module. After booting my monitor is blank. For other AMD chipsets *_sdma1.bin is needed as well: drivers/gpu/drm/amd/amdgpu/cik_sdma.c(126): snprintf(fw_name, sizeof(fw_name), "radeon/%s_sdma1.bin", chip_name); Similar to https://bugs.launchpad.net/ubuntu/+source/linux- firmware/+bug/1183777, https://bugs.launchpad.net/ubuntu/+source /linux-firmware/+bug/1218691 Best regards, Timothy To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1510405/+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
