Thank you for your bug report, I can confirm that with a docked laptop
using the laptop screen and an external monitor, on user change the
screen is in mirror, reconnecting the external monitor triggers an
update and put the greeter in the right mode
** Package changed: lightdm (Ubuntu) => unity-greeter (Ubuntu)
** Changed in: unity-greeter (Ubuntu)
Importance: Undecided => High
** Also affects: unity-greeter (Ubuntu Precise)
Importance: High
Status: Confirmed
** Also affects: unity-greeter
Importance: Undecided
Status: New
** Changed in: unity-greeter (Ubuntu Precise)
Assignee: (unassigned) => Robert Ancell (robert-ancell)
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https://bugs.launchpad.net/bugs/959592
Title:
Multi monitor mirrored instead of using primary/selected monitor
Status in Unity Greeter:
New
Status in “unity-greeter” package in Ubuntu:
Confirmed
Status in “unity-greeter” source package in Precise:
Confirmed
Bug description:
When lightdm starts after rebooting or switching on, I'm greeted with
the login which is mirrored on both of my displays and the primary
monitor resolution is reduced from widescreen to a 4:3 resolution. If
I replug the external monitor, the display is no longer mirrored and
the correct resolution is displayed on the primary monitor. I also get
the Ubuntu logo in the centre of the external display of which I
assume is the correct behaviour. This is on a Lenovo G570 notebook.
$ sudo lspci -vv
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core
Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA
controller])
Subsystem: Lenovo Device 3975
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 41
Region 0: Memory at d0000000 (64-bit, non-prefetchable) [size=4M]
Region 2: Memory at c0000000 (64-bit, prefetchable) [size=256M]
Region 4: I/O ports at 3000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
Address: fee0c00c Data: 4161
Capabilities: [d0] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [a4] PCI Advanced Features
AFCap: TP+ FLR+
AFCtrl: FLR-
AFStatus: TP-
Kernel driver in use: i915
Kernel modules: i915
$ lsb_release -rd
Description: Ubuntu precise (development branch)
Release: 12.04
$ apt-cache policy lightdm
lightdm:
Installed: 1.1.8-0ubuntu1
Candidate: 1.1.8-0ubuntu1
Version table:
*** 1.1.8-0ubuntu1 0
500 http://gb.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
100 /var/lib/dpkg/status
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