Installed 21.04 on P348 and reproduced this issue, after upgraded to proposed packages, this issue is fixed. $ DRI_PRIME=1 glxgears -info Running synchronized to the vertical refresh. The framerate should be approximately the same as the monitor refresh rate. GL_RENDERER = Mesa Intel(R) Graphics (RKL GT1) GL_VERSION = 4.6 (Compatibility Profile) Mesa 21.0.3 GL_VENDOR = Intel GL_EXTENSIONS = GL_ARB_multisample ... VisualID 509, 0x1fd 305 frames in 5.0 seconds = 60.917 FPS 300 frames in 5.0 seconds = 59.809 FPS 301 frames in 5.0 seconds = 60.000 FPS
$ glxgears -info Running synchronized to the vertical refresh. The framerate should be approximately the same as the monitor refresh rate. GL_RENDERER = AMD Radeon (TM) Pro WX 3200 Series (POLARIS12, DRM 3.40.0, 5.11.0-25-generic, LLVM 12.0.0) GL_VERSION = 4.6 (Compatibility Profile) Mesa 21.0.3 GL_VENDOR = AMD GL_EXTENSIONS = GL_ARB_multisample ... VisualID 509, 0x1fd 304 frames in 5.0 seconds = 60.782 FPS 300 frames in 5.0 seconds = 59.800 FPS ** Tags removed: verification-needed verification-needed-hirsute ** Tags added: verification-done verification-done-hirsute -- 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: Fix Committed Status in mesa package in Ubuntu: Fix Committed Status in mesa source package in Focal: Fix Committed Status in mesa source package in Hirsute: Fix Committed 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
