[Macbook Pro 8,2] Screen blanks when calling vgaswitcheroo
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Expired
|
Medium
|
Unassigned |
Bug Description
Hi
By default when you try and switch graphics card on a Macbook Pro 8,2 from the ATI card to the Intel card , the screen is blanked and never turned on. This is due to the driver not knowing about the LVDS Panel mode since the machine was started with the discrete card on.
This patch http://
I have applied this patch on the 3.9.1 and 3.8.2 upstream kernels and it fixes the issue for me.
Could this possibly be fixed for S and be SRU'd for Raring?
---
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
/dev/snd/
DistroRelease: Ubuntu 13.04
HibernationDevice: RESUME=
InstallationDate: Installed on 2013-03-05 (49 days ago)
InstallationMedia: Kubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130304)
MachineType: Apple Inc. MacBookPro8,2
MarkForUpload: True
Package: linux (not installed)
ProcFB:
0 inteldrmfb
1 radeondrmfb
ProcKernelCmdLine: ro root=/dev/
ProcVersionSign
RelatedPackageV
linux-
linux-
linux-firmware 1.106
Tags: raring
Uname: Linux 3.8.0-17-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 01/24/12
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP81.88Z.
dmi.board.
dmi.board.name: Mac-94245A3940C
dmi.board.vendor: Apple Inc.
dmi.board.version: MacBookPro8,2
dmi.chassis.type: 10
dmi.chassis.vendor: Apple Inc.
dmi.chassis.
dmi.modalias: dmi:bvnAppleInc
dmi.product.name: MacBookPro8,2
dmi.product.
dmi.sys.vendor: Apple Inc.
Changed in linux (Ubuntu): | |
importance: | Undecided → Medium |
tags: | added: kernel-da-key |
description: | updated |
tags: | added: cherry-pick |
This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 1171940
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.