This should be interesting: http://bugzilla.kernel.org/show_bug.cgi?id=14997
"I took a bit more at this problem, too, for the same machine Matthias is checking (945GM). The problem looks like that the encoder->crtc is cleared at lid close, but it's never recovered properly. Namely, drm_crtc_helper_set_config() is called by intel's set_config, and this calls drm_helper_disable_unused_functions() that prunes off crtcs used for LVDs. Then, at lid open, drm_helper_resume_force_mode() is called, but this resumes the CRTCs that are already enabled, thus it doesn't help for resuming LVDS." There is also a patch attached which, according to Takashi Iwai, fixes the problem. I don't know whether this is also the case for the GM45. ** This bug is no longer a duplicate of bug 505271 [gm45] "*ERROR* Execbuf while wedged" when closing laptop lid with compiz running ** Bug watch added: Linux Kernel Bug Tracker #14997 http://bugzilla.kernel.org/show_bug.cgi?id=14997 -- screen brightness won't come back when I open the lid https://bugs.launchpad.net/bugs/488328 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
