[Impact]
The Mesa project requires a kernel change to support OpenGL 3.0 on Intel's gen7 (Ivy Bridge) hardware. Without this, applications requiring GL 3.0 won't work properly for owners of this hardware.
[Test Case]
To reproduce the issue, run:
$ glxinfo| grep "OpenGL version"
This result is the failing case:
OpenGL version string: 2.1 Mesa 8.0.2
This result is the successful case:
OpenGL version string: 3.0 Mesa 8.0.2
[Fix]
To resolve the issue, the kernel commit
ae662d31264979e52581bd2573bf0b82812f52ab
"drm/i915: Add support for resetting the SO write pointers on gen7."
should be cherry-picked.
(This commit is available in the kernel mainline.)
I have tested this with
git://kernel.ubuntu.com/ubuntu/ubuntu-precise.git
The commit cherry picks cleanly, and resolves the issue.
[Regression Risk]
TBD
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu12
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: STAC92xx Analog [STAC92xx Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: jljusten 1727 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xd0730000 irq 48'
Mixer name : 'Intel PantherPoint HDMI'
Components : 'HDA:111d76e0,103c18df,00100303 HDA:80862806,80860101,00100000'
Controls : 31
Simple ctrls : 12
DistroRelease: Ubuntu 12.04
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
MachineType: Hewlett-Packard HP EliteBook 9470m
Package: linux (not installed)
ProcEnviron:
TERM=xterm
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-29-generic root=UUID=46c2800d-27cf-4825-b4a1-7e52a40e63fa ro crashkernel=384M-2G:64M,2G-:128M quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24
RelatedPackageVersions:
linux-restricted-modules-3.2.0-29-generic N/A
linux-backports-modules-3.2.0-29-generic N/A
linux-firmware 1.79
StagingDrivers: mei
Tags: precise staging
Uname: Linux 3.2.0-29-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 06/07/2012
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68IBD Ver. B.05
dmi.board.name: 18DF
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 62.0A
dmi.chassis.asset.tag: 72612S2012
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr68IBDVer.B.05:bd06/07/2012:svnHewlett-Packard:pnHPEliteBook9470m:pvrA1009C12:rvnHewlett-Packard:rn18DF:rvrKBCVersion62.0A:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP EliteBook 9470m
dmi.product.version: A1009C12
dmi.sys.vendor: Hewlett-Packard
Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https:/
To change the source package that this bug is filed about visit https:/
[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]