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[Bug 1290789] Re: Incorrect character rendering on Intel Mobile 4 Series Chipset Integrated Graphics Controller

To: desktop-packages@xxxxxxxxxxxxxxxxxxx
From: Launchpad Bug Tracker <1290789@xxxxxxxxxxxxxxxxxx>
Date: Tue, 24 Nov 2015 04:17:32 -0000
Reply-to: Bug 1290789 <1290789@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

[Expired for xorg (Ubuntu) because there has been no activity for 60
days.]

** Changed in: xorg (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1290789

Title:
  Incorrect character rendering on Intel Mobile 4 Series Chipset
  Integrated Graphics Controller

Status in xorg package in Ubuntu:
  Expired

Bug description:
  Bug 
  Incorrect character rendering on Intel Mobile 4 Series Chipset Integrated Graphics Controller

  Ubuntu 13.10, with frequent updates (weekly at least).
  uname: Linux x 3.11.0-18-generic #32-Ubuntu SMP Tue Feb 18 21:11:14 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
  /proc/cmdline: BOOT_IMAGE=/boot/vmlinuz-3.11.0-18-generic root=UUID=... ro quiet splash vt.handoff=7

  Video driver used:
  ii  xserver-xorg-video-intel                      2:2.99.904-0ubuntu2.1                      amd64        X.Org X server -- Intel i8xx, i9xx display driver

  lshw extract:
      description: Notebook
      product: 20553AG ()
      vendor: LENOVO
      version: ThinkPad T500
  ...
          *-display:0
               description: VGA compatible controller
               product: Mobile 4 Series Chipset Integrated Graphics Controller
               vendor: Intel Corporation
               physical id: 2
               bus info: pci@0000:00:02.0
               version: 07
               width: 64 bits
               clock: 33MHz
               capabilities: msi pm vga_controller bus_master cap_list rom
               configuration: driver=i915 latency=0
               resources: irq:46 memory:f4400000-f47fffff memory:d0000000-dfffffff ioport:1800(size=8)
          *-display:1 UNCLAIMED
               description: Display controller
               product: Mobile 4 Series Chipset Integrated Graphics Controller
               vendor: Intel Corporation
               physical id: 2.1
               bus info: pci@0000:00:02.1
               version: 07
               width: 64 bits
               clock: 33MHz
               capabilities: pm bus_master cap_list
               configuration: latency=0
               resources: memory:f4200000-f42fffff

  As shown on middle of screenshot, occasionaly some character are incorrectly rendered. If repaint action is triggered
  (e.g. selecting text, or somethign similar, depending on application), character is repainted correctly.

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