Hi Lucas, the relevant part in the build log is this one:
-- Found PkgConfig: /usr/bin/pkg-config (found version "0.29") -- Checking for modules 'xcb;xcb' -- Found xcb, version 1.13.1 -- Found xcb, version 1.13.1 -- Found XCB: /usr/lib/x86_64-linux-gnu/libxcb.so;/usr/lib/x86_64-linux-gnu/libxcb.so -- Found ZLIB: /usr/lib/x86_64-linux-gnu/libz.so (found version "1.2.11") -- Checking for module 'xorg-libinput' -- Found xorg-libinput, version 0.29.0 -- Checking for module 'xi' -- Found xi, version 1.7.9 -- Checking for module 'libudev' -- Found libudev, version 244 -- Checking for modules 'xcb;xcb;xcb-randr' -- No package 'xcb-randr' found CMake Error at /usr/share/cmake-3.16/Modules/FindPackageHandleStandardArgs.cmake:146 (message): Could NOT find XCB (missing: XCB_LIBRARIES) Call Stack (most recent call first): /usr/share/cmake-3.16/Modules/FindPackageHandleStandardArgs.cmake:393 (_FPHSA_FAILURE_MESSAGE) /usr/share/cmake/lxqt-build-tools/find-modules/FindXCB.cmake:52 (find_package_handle_standard_args) lxqt-config-brightness/CMakeLists.txt:5 (find_package) Anyways - somewhat has changed so the package now need the additional build dependency libxcb-randr0-dev Will add and upload soon. Cheers Alf
