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[Bug 680878] Re: dual head: wrong character display -- font artefacts

 

** Description changed:

  Binary package hint: xorg
  
  Originally I posted the problem for emacs23
  (https://bugs.launchpad.net/ubuntu/+source/emacs23/+bug/674488). But the
  problem is not restricted to this program. It also happens e.g. in OO
  and unison.
  
  Since the update to Maverick Meerkat I got very strange characters in
  emacs23 (see attachment). The characters are somehow shuffled into each
  other. This happens if I fast move through a line. If I leave the line
  or shortly switch to another window, all is fine again. For emacs23 the
  problem depends on font settings. If I disable anti-aliasing the problem
  disappears.
  
  In OpenOffice (oowriter) there is a strange behaviour: comments are
  agglomerated at the bottom while scrolling.
  
  The problem arises only in dual head mode. When I turn of the laptop
  screen and only use the external monitor, all is fine.
  
  I could not use ubuntu-bug ($ ubuntu-bug xorg) to report this problem. I
  got the error message: "Das Problem kann nicht gemeldet werden: Dies ist
  kein echtes Ubuntu-Paket"...
  
  
  Architecture: i386
  DistroRelease: Ubuntu 10.10
  Uname: Linux 2.6.35-22-generic i686
  
  
  $ apt-cache policy xorg
  xorg:
    Installiert: 1:7.5+6+xserver1.9
    Kandidat:    1:7.5+6+xserver1.9
    Versionstabelle:
   *** 1:7.5+6+xserver1.9 0
          500 http://ppa.launchpad.net/xorg-edgers/ppa/ubuntu/ maverick/main i386 Packages
          100 /var/lib/dpkg/status
       1:7.5+6ubuntu3 0
          500 http://de.archive.ubuntu.com/ubuntu/ maverick/main i386 Packages
  --- 
  Architecture: i386
  DRM.card0.DVI.D.1:
   status: disconnected
   enabled: disabled
   dpms: Off
   modes: 
   edid-base64:
  DRM.card0.LVDS.1:
   status: connected
   enabled: enabled
   dpms: On
   modes: 1280x800
   edid-base64: AP///////wBEkywAAAAAAAAPAQOAHhN4CtfgkVRPjCgiUFQAAAABAQEBAQEBAQEBAQEBAQEB6hoAgFAgEDAVIEQAML4QAAAYAAAADwAIACoAAQAEADJKBBkBAAAA/gBRVUFOVEFESVNQTEFZAAAA/gBRRDE0VEwwMTMKICAgADE=
  DRM.card0.VGA.1:
   status: connected
   enabled: enabled
   dpms: On
   modes: 1680x1050 1600x1000 1280x1024 1440x900 1280x960 1152x864 1152x720 1024x768 1024x768 832x624 800x600 800x600 640x480 640x480 720x400
   edid-base64: AP///////wAi8KgmAQEBASURAQNoLx547rU1pVZKmiUQUFSla5BxAIFAlQCpALMAAQEBAQEBITmQMGIaJ0BosDYA2SgRAAAcAAAA/QAwTBhSEAAKICAgICAgAAAA/ABIUCB3MjIwNwogICAgAAAA/wBDWkQ3MzcwMU40CiAgAP4=
  DistroRelease: Ubuntu 10.10
  InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
  MachineType: Acer Extensa 3100
  Package: xorg 1:7.5+6ubuntu3
  PackageArchitecture: i386
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-23-generic root=UUID=3a2881f3-3c76-4632-b374-cb83ff26515b ro quiet splash
  ProcEnviron:
   PATH=(custom, user)
   LANG=de_DE.utf8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.35-23.40-generic 2.6.35.7
  Tags: maverick maverick
  Uname: Linux 2.6.35-23-generic i686
  UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare www-data
  dmi.bios.date: 10/13/2005
  dmi.bios.vendor: Phoenix Technologies LTD
  dmi.bios.version: V1.04
  dmi.board.name: MynaII
  dmi.board.vendor: Acer
  dmi.board.version: Rev
  dmi.chassis.asset.tag: None
  dmi.chassis.type: 10
  dmi.chassis.vendor: Acer
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrV1.04:bd10/13/2005:svnAcer:pnExtensa3100:pvr0100:rvnAcer:rnMynaII:rvrRev:cvnAcer:ct10:cvrN/A:
  dmi.product.name: Extensa 3100
  dmi.product.version: 0100
  dmi.sys.vendor: Acer
  system:
   distro:             Ubuntu
   codename:           maverick
   architecture:       i686
   kernel:             2.6.35-23-generic
+ 
+ 
+ [lspci]
+ 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller [8086:2592] (rev 03) (prog-if 00 [VGA controller])
+     	Subsystem: Acer Incorporated [ALI] Device [1025:0097]

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https://bugs.launchpad.net/bugs/680878

Title:
  dual head: wrong character display -- font artefacts


References