[nouveau] Video mode 1600x1200 is missing

[Karim BAKKAL]

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

[Daniel van Vugt (vanvugt)]

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>".

[Karim BAKKAL (kabak-85)]

in /usr/share/X11/xorg.conf.d, there is only :
10-amdgpu.conf
10-quirks.conf
10-radeon.conf
40-libinput.conf
51-synaptics-quirks.conf
70-synaptics.conf
70-wacom.conf