** Description changed: Hello, I use ubuntu 16.04 with hwe stack and an Radeon R9 285. With kernel 4.13 and older, I can use a resolution of 2560x1440. But, since the upgrade to kernel 4.15, I'm limited to the 1920x1200. + + I have attached the output of xrandr on both kernel. + My screen (Dell U2713HM) is plugged to the output DVI-1. + + With a kernel 4.13, the output is detected as a DVI-I. + But with a kernel 4.15, the output is detected as a DVI-D. + ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.15.0-29-generic 4.15.0-29.31~16.04.1 ProcVersionSignature: Ubuntu 4.15.0-29.31~16.04.1-generic 4.15.18 Uname: Linux 4.15.0-29-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.18 Architecture: amd64 CurrentDesktop: Unity Date: Sun Aug 5 16:46:32 2018 SourcePackage: linux-signed-hwe UpgradeStatus: Upgraded to xenial on 2016-12-17 (595 days ago)
** Summary changed: - amdgpu WQHD resolution not available + amdgpu WQHD resolution(2560 × 1440) not available -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1785481 Title: amdgpu WQHD resolution(2560 × 1440) not available To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe/+bug/1785481/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
