[Lucid] Exteral monitor never detected on a Dell Studio 15
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Expired
|
Medium
|
Unassigned |
Bug Description
Binary package hint: xorg
When connecting an external monitor to a Dell Studio 15 laptop, either when booting or after booting, the external monitor always remains blank. However, when running the Monitors application, the external monitor is detected and it seems like the desktop spans both the laptop and the monitor as observed by moving the mouse to the right of the laptop.
ProblemType: Bug
Architecture: i386
Date: Thu Mar 18 18:22:27 2010
DistroRelease: Ubuntu 10.04
DkmsStatus: Error: [Errno 2] No such file or directory
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta i386 (20100318)
MachineType: Dell Inc. Studio 1536
Package: xorg 1:7.5+3ubuntu1
ProcCmdLine: BOOT_IMAGE=
ProcEnviron:
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcVersionSign
SourcePackage: xorg
Uname: Linux 2.6.32-16-generic i686
dmi.bios.date: 03/03/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: X16
dmi.board.name: 0HE3C8
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.
dmi.product.name: Studio 1536
dmi.sys.vendor: Dell Inc.
glxinfo: Error: [Errno 2] No such file or directory
system:
distro: Ubuntu
codename: lucid
architecture: i686
kernel: 2.6.32-16-generic
affects: | xorg (Ubuntu) → xserver-xorg-video-ati (Ubuntu) |
Changed in xserver-xorg-video-ati (Ubuntu): | |
status: | New → Confirmed |
Changed in linux (Ubuntu): | |
assignee: | nobody → Canonical Kernel Team (canonical-kernel-team) |
Changed in linux (Ubuntu): | |
status: | Triaged → Incomplete |
importance: | Undecided → Medium |
Well, the X side definitely sees your monitor. Looks like it's a BenQ FP91G; good choice! ;-)
Looks like your system is using kernel modesetting. You didn't mention it but I assume this is a regression from Karmic (where we were not using KMS by default?) Probably if you boot with radeon.modeset=0 to switch off KMS it'll behave as it did in Karmic.
I'll go ahead and reforward it to the kernel team.
(Btw, in general now with Kernel mode-setting any bug relating to resolution, output switching, and so on are now kernel bugs.)