Red Hat Bugzilla – Bug 444651
LIBGL_THROTTLE_REFRESH
Last modified: 2009-07-14 13:38:50 EDT
Description of problem: When running 3D apps (for instance clutter demos) the following warning appears: Failed to initialize TTM buffer manager. Falling back to classic. do_wait: drmWaitVBlank returned -1, IRQs don't seem to be working correctly. Try running with LIBGL_THROTTLE_REFRESH and LIBL_SYNC_REFRESH unset. Version-Release number of selected component (if applicable): xorg-x11-drv-i810-2.2.1-22.fc9.i386 How reproducible: Always Additional info: This is on an otherwise fully updated Fedora 9/rawhide system. I am running on a Dell Lattitude D820. Output from lspci 00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub (rev 03) 00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03) 00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03) 0 [maxx@ice ~]$ /sbin/lsmod | grep i915 i915 84484 2 drm 145508 3 i915 i2c_algo_bit 8964 1 i915 i2c_core 20628 4 i915,drm,i2c_i801,i2c_algo_bit [maxx@ice ~]$ glxinfo | grep direct Failed to initialize TTM buffer manager. Falling back to classic. direct rendering: Yes
Created attachment 304151 [details] Xorg log
are you running compiz?
This happens both with and without compiz. I have found a workaround for the clutter apps: export CLUTTER_VBLANK=none This gets rid of the LIBGL_THROTTLE_REFRESH line but the "Failed to initialize TTM buffer manager. Falling back to classic." line is still there.
Changing version to '9' as part of upcoming Fedora 9 GA. More information and reason for this action is here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping
This message is a reminder that Fedora 9 is nearing its end of life. Approximately 30 (thirty) days from now Fedora will stop maintaining and issuing updates for Fedora 9. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as WONTFIX if it remains open with a Fedora 'version' of '9'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, simply change the 'version' to a later Fedora version prior to Fedora 9's end of life. Bug Reporter: Thank you for reporting this issue and we are sorry that we may not be able to fix it before Fedora 9 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora please change the 'version' of this bug to the applicable version. If you are unable to change the version, please add a comment here and someone will do it for you. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete. The process we are following is described here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping
Fedora 9 changed to end-of-life (EOL) status on 2009-07-10. Fedora 9 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. Thank you for reporting this bug and we are sorry it could not be fixed.