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 Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1937988 Title: The image is distorted while use iGPU rendering and output via AMD GPU To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1937988/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs