Bug#756583: Same on PowerMac G5 Quad

[Vladimir Berezenko <qmaster2000@gmail.com>]

Dear maintainer!

Almost same thing occured on PowerMac G5 Debian Jessie on 3.16.2 kernel with 
0000:0a:00.0 VGA compatible controller: NVIDIA Corporation NV43 [GeForce 6600] 
(rev a2)
With disabled acceleration I get 
kernel: [   33.155692] nouveau E[     DRM] GPU lockup - switching to software 
fbcon

With enabled acceleration just garbaged screen and no any reaction on 
anything. On 3.14.2 kernel just acceleration not working. I've reported that 
bug already. #744387 and #728839.
Nothing changed yet.
-- 
WBR, Vladimir Berezenko.