-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Hello everyone, it looks like this does indeed fix the fbc problem. I applied the patch, and did some testing. I am using a Dell Latitude e6420, this is my setup: brotscheibe brot # cat /sys/kernel/debug/dri/0/i915_fbc_status FBC enabled brotscheibe brot # uname -a Linux brotscheibe 3.4.0-rc2+ #52 SMP PREEMPT Mon Apr 9 21:51:57 CEST 2012 x86_64 Intel(R) Core(TM) i5-2540M CPU @ 2.60GHz GenuineIntel GNU/Linux After nearly an hour of testing, i got no hangs. Even when using rxvt and "while (true) do dmesg; done". I will do more testing tomorrow, but i dont think anything will fail. You can add my tested-by: Michael "brot" Groh <michael.groh at minad.de> Thanks for your work and have a nice day, Michael -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iF4EAREIAAYFAk+D+I8ACgkQ+SqCF1IBR0SzSgD/bkf6W7axjuaWe855f/5oqFSC Opt4J1pz6HP/qNYFD/AA/0Hw4XvvY085OkEQ++Hd+Q1dvvWXLeukuSf6dDfgokFq =Dt1V -----END PGP SIGNATURE-----