Xmir doesn't start with MUXed Intel/ATi hybrid graphics

Bug #1217821 reported by Marco Trevisan (Treviño) on 2013-08-28
24
This bug affects 5 people
Affects Status Importance Assigned to Milestone
Mir
Medium
Unassigned
xorg-server (Ubuntu)
Medium
Unassigned

Bug Description

I've an Acer 4820TG notebook with MUXed Intel + ATi cards, and I can select which card to use via BIOS setting or somewhat dynamically using vgaswitcheroo.

In case I set the notebook in dynamic mode on the bios, so that I've both the VGA cards available, XMir doesn't start, and I'm getting the X fallback session instead of lightdm.
If I instead add an upstart job to force one of the cards to turn off early on the boot, it works instead.

Using pure X this issue doesn't show up.

00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 12) (prog-if 00 [VGA controller])
        Subsystem: Acer Incorporated [ALI] Device 0359
        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 42
        Region 0: Memory at d8000000 (64-bit, non-prefetchable) [size=4M]
        Region 2: Memory at c0000000 (64-bit, prefetchable) [size=256M]
        Region 4: I/O ports at 4050 [size=8]
        Expansion ROM at <unassigned> [disabled]
        Capabilities: <access denied>
        Kernel driver in use: i915

01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Madison [Mobility Radeon HD 5650/5750 / 6530M/6550M] (rev ff) (prog-if ff)

Ubuntu QA Website (ubuntuqa) wrote :

This bug has been reported on the Ubuntu Package testing tracker.

A list of all reports related to this bug can be found here:
http://packages.qa.ubuntu.com/qatracker/reports/bugs/1217821

tags: added: package-qa-testing
Changed in xmir:
importance: Undecided → Medium
Changed in mir:
importance: Undecided → Medium
Changed in xmir:
status: New → Triaged
Changed in mir:
status: New → Triaged
kevin gunn (kgunn72) on 2013-10-01
Changed in mir:
assignee: nobody → Chris Halse Rogers (raof)
Changed in xmir:
assignee: nobody → Chris Halse Rogers (raof)
affects: xmir → xorg-server (Ubuntu)
tags: added: xmir
Daniel van Vugt (vanvugt) wrote :

XMir 1.0 (the old Xorg extension) is now deprecated and is not being maintained or fixed. It is replaced by the new 'Xmir' binary (package 'xmir') introduced in Ubuntu 15.10 wily.

Is there any way to reproduce this bug without the old Xmir?

Changed in mir:
status: Triaged → Incomplete
Changed in xorg-server (Ubuntu):
status: Triaged → Incomplete
Daniel van Vugt (vanvugt) wrote :

Turns out bugs don't automatically expire if someone is assigned to them.

Changed in mir:
assignee: Chris Halse Rogers (raof) → nobody
Changed in xorg-server (Ubuntu):
assignee: Chris Halse Rogers (raof) → nobody
Launchpad Janitor (janitor) wrote :

[Expired for Mir because there has been no activity for 60 days.]

Changed in mir:
status: Incomplete → Expired
Launchpad Janitor (janitor) wrote :

[Expired for xorg-server (Ubuntu) because there has been no activity for 60 days.]

Changed in xorg-server (Ubuntu):
status: Incomplete → Expired
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