Comment 6 for bug 1342675

This bug also affects me on both trust and utopic. For both unity and xfce. I have attached some screenshots I have taken over the past few days. The non-rendering of characters remains until I reboot. The duplicated characters or noise can go away after a redraw, but they come back until a reboot.

$ sudo lspci -v
00:02.0 VGA compatible controller: Intel Corporation Broadwell-U Integrated Graphics (rev 09) (prog-if 00 [VGA controller])
 Subsystem: Lenovo Device 5036
 Flags: bus master, fast devsel, latency 0, IRQ 61
 Memory at e0000000 (64-bit, non-prefetchable) [size=16M]
 Memory at d0000000 (64-bit, prefetchable) [size=256M]
 I/O ports at 3000 [size=64]
 Expansion ROM at <unassigned> [disabled]
 Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
 Capabilities: [d0] Power Management version 2
 Capabilities: [a4] PCI Advanced Features
 Kernel driver in use: i915

$ uname -a
Linux pada 3.16.0-31-generic #43~14.04.1-Ubuntu SMP Tue Mar 10 20:13:38 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux