** Description changed: - [Steps to reproduce] + [Impact] + Image is distorted with PRIME, caused by mismatch in stride alignment between intel and amdgpu/nvidia after intel bumped the alignment to 256 bytes. + + [Fix] + Upstream fixed it in 21.2-series, and backport to 21.0.x needs four commits in total. + + [Test case] 1. Connect a monitor on the AMD GPU. 2. Power on the system and boot into OS. - 3. Run below command to launch glxgear + 3. Run below command to launch glxgears Cmd> DRI_PRIME=1 glxgears -info - [Expected result] - The image is not distrorted while running the glxgears + * Expected result + The image is not distorted while running the glxgears - [Actual result] - The image is distrorted while running the glxgears + * Actual result + The image is distorted while running the glxgears + + [Where things might go wrong] + This is a regression caused by the intel driver, so the backports merely fix what got broken. Regressions would only manifest on hybrid graphics platforms. + --- Here is the upstream bug for tracking this issue. https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11942?commit_id=505f815e5ead8c9872bbda4c1ff3aeaee7223d64
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1937988 Title: The image is distorted while use iGPU rendering and output via AMD GPU Status in OEM Priority Project: In Progress Status in mesa package in Ubuntu: New Status in mesa source package in Focal: New Status in mesa source package in Hirsute: New Bug description: [Impact] Image is distorted with PRIME, caused by mismatch in stride alignment between intel and amdgpu/nvidia after intel bumped the alignment to 256 bytes. [Fix] Upstream fixed it in 21.2-series, and backport to 21.0.x needs four commits in total. [Test case] 1. Connect a monitor on the AMD GPU. 2. Power on the system and boot into OS. 3. Run below command to launch glxgears Cmd> DRI_PRIME=1 glxgears -info * Expected result The image is not distorted while running the glxgears * Actual result The image is distorted while running the glxgears [Where things might go wrong] This is a regression caused by the intel driver, so the backports merely fix what got broken. Regressions would only manifest on hybrid graphics platforms. --- Here is the upstream bug for tracking this issue. https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11942?commit_id=505f815e5ead8c9872bbda4c1ff3aeaee7223d64 To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1937988/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
