Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: lightdm (Ubuntu) Status: New => Confirmed
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to lightdm in Ubuntu. https://bugs.launchpad.net/bugs/1252536 Title: Supported Radeon 9550 very slow with Unity in 13.10, no 3D acceleration Status in “lightdm” package in Ubuntu: Confirmed Bug description: Dramatically slower graphics performance after going from Ubuntu 13.04 to 13.10. After some debugging (below) I installed gdm and the problem went away. lspci -nn | grep VGA 01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] RV350 [Radeon 9550] [1002:4153] /usr/lib/nux/unity_support_test -p OpenGL vendor string: VMware, Inc. OpenGL renderer string: Gallium 0.4 on llvmpipe (LLVM 3.3, 128 bits) OpenGL version string: 2.1 Mesa 10.0.0-devel (git-1100093 saucy-oibaf-ppa) Not software rendered: no Not blacklisted: yes GLX fbconfig: yes GLX texture from pixmap: yes GL npot or rect textures: yes GL vertex program: yes GL fragment program: yes GL vertex buffer object: yes GL framebuffer object: yes GL version is 1.4+: yes Unity 3D supported: no I installed Mesa 10 to see if that would help, performance unchanged. LIBGL_DEBUG=verbose glxinfo 2>&1 > /dev/null libGL: OpenDriver: trying /usr/lib/i386-linux-gnu/dri/tls/swrast_dri.so libGL: OpenDriver: trying /usr/lib/i386-linux-gnu/dri/swrast_dri.so **** unset LIBGL_ALWAYS_SOFTWARE; /usr/lib/nux/unity_support_test -p yields: unset LIBGL_ALWAYS_SOFTWARE; /usr/lib/nux/unity_support_test -p OpenGL vendor string: X.Org R300 Project OpenGL renderer string: Gallium 0.4 on ATI RV350 OpenGL version string: 2.1 Mesa 9.2.1 Not software rendered: yes Not blacklisted: yes GLX fbconfig: yes GLX texture from pixmap: yes GL npot or rect textures: yes GL vertex program: yes GL fragment program: yes GL vertex buffer object: yes GL framebuffer object: yes GL version is 1.4+: yes Unity 3D supported: yes ***** Starting from the lightdm login screen, I press control-alt F2 to bring up a command line. Then I run startx. I don't get a window manager, but I can find my way to xterm and then work from the command line after X starts. glxgears looks normal - smooth and as quickly as I believe the 9550 can go. :) Opening firefox, CNN and youtube videos play smoothly. **** Found in x-0-greeter.log: ** (at-spi2-registryd:1630): WARNING **: Failed to register client: GDBus.Error: org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files ** (at-spi2-registryd:1630): WARNING **: Unable to register client with session manager and ** (gnome-settings-daemon:1928): WARNING **: Unable to register client: GDBus.Er ror:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files Same fil...My screen background isn't getting loaded... Looks like a permissions problem, but I haven't changed permissions on the file. Odd. [+11.17s] DEBUG: background.vala:155: Error loading background: Failed to open file '/home/arthur/Desktop/IMG_0274.JPG': Permission denied file closes with three more messages ** (gnome-settings-daemon:1928): WARNING **: Name taken or bus went away - shutting down (gnome-settings-daemon:1928): dconf-WARNING **: failed to commit changes to dconf: The connection is closed ** Message: PID 2470 (we are 2470) sent signal 15, shutting down... (nm-applet:2470): libappindicator-WARNING **: Unable to send signal for NewStatus: The connection is closed **** To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1252536/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp