Fonts in GUI garbled, missing characters on Lenovo X1 Carbon 3rd Gen

[zlatko]

Quite often the characters in GUI menus(e.g. WiFi dropdown, Calendar dropdown) and terminal become garbled, unreadable and/or missing. In the same time all is OK in e.g. browser. It often happens after resume, but sometimes during normal operation. After a while(1-2-...10 minutes) the problem is gone.
Steps to take: normal Ubuntu 14.04 install
What happens: after resume or normal operation symbols is top row GUI menus become garbled and unreadable
What should happen: graphics should be stable

$ lsb_release -rd
Description: Ubuntu 14.04.2 LTS
Release: 14.04

$ sudo lshw -c video
[sudo] password for zlatko:
  *-display
       description: VGA compatible controller
       product: Broadwell-U Integrated Graphics
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 09
       width: 64 bits
       clock: 33MHz
       capabilities: msi pm vga_controller bus_master cap_list rom
       configuration: driver=i915 latency=0
       resources: irq:61 memory:f0000000-f0ffffff memory:e0000000-efffffff ioport:3000(size=64)

$ modinfo i915 | head
filename: /lib/modules/3.16.0-45-generic/kernel/drivers/gpu/drm/i915/i915.ko
license: GPL and additional rights
description: Intel Graphics
author: Tungsten Graphics, Inc.
srcversion: 73A8A491ABAC016823271D6
alias: pci:v00008086d000022B3sv*sd*bc03sc*i*
alias: pci:v00008086d000022B2sv*sd*bc03sc*i*
alias: pci:v00008086d000022B1sv*sd*bc03sc*i*
alias: pci:v00008086d000022B0sv*sd*bc03sc*i*
alias: pci:v00008086d0000162Dsv*sd*bc03sc*i*

PS. There is a bug filed(https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1432194) but it was unproperly marked as resolved and closed, team unsubscribed, Hence I am filing a new one.

[Timo Aaltonen (tjaalton)]

No, it was closed for a reason. You need to install latest updates or migrate to a supported stack (lts-utopic stack from 14.10 is no longer supported, apart from the kernel)

[zlatko (zlatko23)]

@tjaaltonen
What latest updates I need to install? Can you point me where to look for them? I always install all proposed updates and I thought as 14.04 is LTS these are the latest stable stuff.
Thank you in advance!

[zlatko (zlatko23)]

@tjaalton
What latest updates I need to install? Can you point me where to look for them? I always install all proposed updates and I thought as 14.04 is LTS these are the latest stable stuff.
Thank you in advance!