Doesn't detect monitor / "Unknown", causes flickering / low refresh rate
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Medium
|
Unassigned | ||
xorg-server (Ubuntu) |
Invalid
|
Undecided
|
Unassigned |
Bug Description
First thing I noticed when I booted Precise was my (CRT) monitor flickering. Went to change refresh rate, realized I couldn't. Booted back to Oneric, realized I couldn't change the refresh rate there either, but it was fine.
Oneric detects the monitor as 'Viewsonic Corporation 20"'. It's a Viewsonic G220fb.
$ lspci | grep -i vga
05:00.0 VGA compatible controller: NVIDIA Corporation G92 [GeForce 8800 GT] (rev a2)
Nvidia proprietary driver is enabled.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: xserver-xorg 1:7.6+10ubuntu1
ProcVersionSign
Uname: Linux 3.2.0-17-generic x86_64
NonfreeKernelMo
.proc.driver.
.proc.driver.
.proc.driver.
NVRM version: NVIDIA UNIX x86_64 Kernel Module 295.20 Mon Feb 6 21:07:30 PST 2012
GCC version: gcc version 4.6.2 (Ubuntu/Linaro 4.6.2-16ubuntu1)
.tmp.unity.
ApportVersion: 1.93-0ubuntu2
Architecture: amd64
CompizPlugins: [core,composite
CompositorRunning: compiz
Date: Sun Mar 18 06:08:10 2012
DistUpgraded: Fresh install
DistroCodename: precise
DistroVariant: ubuntu
DkmsStatus: nvidia-current, 295.20, 3.2.0-17-generic, x86_64: installed
ExtraDebuggingI
GraphicsCard:
NVIDIA Corporation G92 [GeForce 8800 GT] [10de:0611] (rev a2) (prog-if 00 [VGA controller])
Subsystem: eVga.com. Corp. Device [3842:c801]
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120301)
JockeyStatus:
xorg:nvidia_
xorg:nvidia_
MachineType: System manufacturer System Product Name
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
XorgConf:
Section "Device"
Identifier "Default Device"
Option "NoLogo" "True"
EndSection
dmi.bios.date: 11/19/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2304
dmi.board.
dmi.board.name: M4A79T Deluxe
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.
dmi.modalias: dmi:bvnAmerican
dmi.product.name: System Product Name
dmi.product.
dmi.sys.vendor: System manufacturer
version.compiz: compiz 1:0.9.7.
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.30-1ubuntu1
version.
version.
version.
version.
version.
version.
version.
version.
version.
affects: | xorg (Ubuntu) → xserver-xorg-video-nouveau (Ubuntu) |
affects: | xorg (Ubuntu) → linux (Ubuntu) |
Changed in linux (Ubuntu): | |
importance: | Undecided → Medium |
Monitor is also not detected / "Uknown" with Nvidia proprietary drivers disabled, rebooted using nouveau drivers.