I mean the "official" driver downloaded from support.amd.com failed to build. Slow rendering appears after "apt install fglrx" and reboot. Installing prebuilt fglrx binaries seems to success. So I think the bug is related to fglrx.
** Package changed: mesa (Ubuntu) => fglrx-installer (Ubuntu) ** Also affects: mesa (Ubuntu) Importance: Undecided Status: New -- 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/1550910 Title: fglrx renders extremely slow in latest kernels Status in fglrx-installer package in Ubuntu: New Status in mesa package in Ubuntu: New Bug description: I am using latest development version of xenial (ubuntu 16.04). My video card is AMD HD7950, and I use an MiniDP-to-DP line to connect it with an Acer XB240H display. With fglrx or fglrx-updates installed, everything renders extremely slow, even raw terminal renders like 100 lines per second. Workarounds failed: * AMD official driver failed to build due to bug #1502978. * The open source driver can only provide 1024x768 resolution. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1550910/+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