It looks like the problem might be confined to the "nouveau" Xorg
driver. Actually I don't think we recommend that driver anymore. We
recommend "modesetting" instead.

Please look in /usr/share/X11/xorg.conf.d and tell us if you can find
the config file that's telling Xorg to use "nouveau". If you find it
then please remove that file and reboot. It looks like the offending
config file also contains "<default monitor>".

** Package changed: xorg (Ubuntu) => xserver-xorg-video-nouveau (Ubuntu)

** Changed in: xserver-xorg-video-nouveau (Ubuntu)
       Status: New => Incomplete

** Summary changed:

- Video mode is missing
+ [nouveau] Video mode 1600x1200 is missing

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to xserver-xorg-video-nouveau in Ubuntu.
https://bugs.launchpad.net/bugs/1883192

Title:
  [nouveau] Video mode 1600x1200 is missing

Status in xserver-xorg-video-nouveau package in Ubuntu:
  Incomplete

Bug description:
  Video mode 1600x1200 is not present.

  In the file Xorglog.txt, we can see that it's extracted from the EDID
  but not present in the list of "modeline".

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: xorg 1:7.7+19ubuntu7.1
  ProcVersionSignature: Ubuntu 4.15.0-101.102-generic 4.15.18
  Uname: Linux 4.15.0-101-generic i686
  ApportVersion: 2.20.9-0ubuntu7.15
  Architecture: i386
  CompositorRunning: None
  CurrentDesktop: XFCE
  Date: Fri Jun 12 02:17:29 2020
  DistUpgraded: Fresh install
  DistroCodename: bionic
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes, if not too technical
  GraphicsCard:
   NVIDIA Corporation NV41M [GeForce Go 6800] [10de:00c8] (rev a2) (prog-if 00 
[VGA controller])
     Subsystem: Fujitsu Technology Solutions NV41M [GeForce Go 6800] [1734:107c]
  InstallationDate: Installed on 2020-04-17 (55 days ago)
  InstallationMedia: Xubuntu 18.04 LTS "Bionic Beaver" - Release i386 (20180426)
  MachineType: FUJITSU SIEMENS Amilo M3438 Series
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-101-generic 
root=UUID=f910d7c1-f499-455a-ade2-472c22149dcd ro quiet splash vt.handoff=1
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/05/2005
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 1.10C
  dmi.board.name: P71EN0
  dmi.chassis.type: 10
  dmi.chassis.vendor: FUJITSU SIEMENS
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr1.10C:bd10/05/2005:svnFUJITSUSIEMENS:pnAmiloM3438Series:pvr:rvn:rnP71EN0:rvr:cvnFUJITSUSIEMENS:ct10:cvr:
  dmi.product.name: Amilo M3438 Series
  dmi.sys.vendor: FUJITSU SIEMENS
  version.compiz: compiz N/A
  version.libdrm2: libdrm2 2.4.99-1ubuntu1~18.04.2
  version.libgl1-mesa-dri: libgl1-mesa-dri 19.2.8-0ubuntu0~18.04.3
  version.libgl1-mesa-glx: libgl1-mesa-glx 19.2.8-0ubuntu0~18.04.3
  version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4.4
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20171229-1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2

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