Same problem here. After upgrading my laptop from Lubuntu 16.04 to Lubuntu 18.04, there is no hardware acceleration anymore. AMD STONEY was perfectly capable of this on the older release.
glxinfo shows: OpenGL renderer string: llvmpipe (LLVM 6.0, 128 bits) /var/log/Xorg.0.log shows: [ 16.679] (EE) AMDGPU(0): eglGetDisplay() failed [ 16.679] (EE) AMDGPU(0): glamor detected, failed to initialize EGL. [ 16.685] (==) AMDGPU(0): DRI3 disabled ... [ 16.692] (II) AIGLX: Screen 0 is not DRI2 capable [ 16.692] (EE) AIGLX: reverting to software rendering [ 16.699] (II) IGLX: enabled GLX_MESA_copy_sub_buffer [ 16.700] (II) IGLX: Loaded and initialized swrast [ 16.700] (II) GLX: Initialized DRISWRAST GL provider for screen 0 Nothing in the kernel log indicates that there is a problem with the amdgpu driver. Tried creating a xorg.conf and forcing DRI to 3, but no dice. LIBGL_ALWAYS_SOFTWARE is not set, there is no /etc/X11/Xsession.d/50_check_unity_support, so it's probably not bug #1767468. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1752938 Title: Upgrading Ubuntu 18.04 disables GPU hardware acceleration To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1752938/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
