** Changed in: linux (Ubuntu Raring)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1200126
Title:
coherency bug in drm/i915. Please apply patch to kernel
Status in “linux” package in Ubuntu:
Fix Released
Status in “linux” source package in Raring:
Fix Released
Status in “linux” source package in Saucy:
Fix Released
Bug description:
There is a known coherency bug in kernels after 3.7 affecting all
intel gen4 hardware.
Bug has been patched in devel kernel and flagged for inclusion in
3.10.1.
Please, let this patch be available on ubuntu raring 3.8 series.
Patch details:
commit 22fd5ca947b58901927d100d2b1aa0f1672b3435
Author: Chris Wilson <ch...@chris-wilson.co.uk>
Date: Fri Jun 28 16:54:08 2013 +0100
drm/i915: Only clear write-domains after a successful wait-seqno
which affects v3.7+.
See also https://bugs.freedesktop.org/show_bug.cgi?id=65665.
This bug is quite disturbing as it causes large bitmaps to be rendered
incorrectly in many apps like firefox, libreoffice, etc.
Furthermore, it may be the cause of the occasional incorrect rendering of
some chars reported in https://bugs.freedesktop.org/show_bug.cgi?id=55500
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: linux-image 3.8.0.26.44
ProcVersionSignature: Ubuntu 3.8.0-26.38-generic 3.8.13.2
Uname: Linux 3.8.0-26-generic x86_64
ApportVersion: 2.9.2-0ubuntu8.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: callegar 2591 F.... pulseaudio
CRDA:
country IT:
(2402 - 2482 @ 40), (N/A, 20)
(5170 - 5250 @ 40), (N/A, 20)
(5250 - 5330 @ 40), (N/A, 20), DFS
(5490 - 5710 @ 40), (N/A, 27), DFS
Date: Thu Jul 11 10:54:13 2013
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=14fe66c7-7c31-4fdb-9894-de7f5e8eca75
InstallationDate: Installed on 2009-11-12 (1336 days ago)
InstallationMedia: Kubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
MachineType: Dell Inc. Latitude E6500
MarkForUpload: True
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-26-generic
root=/dev/mapper/group00-root ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.8.0-26-generic N/A
linux-backports-modules-3.8.0-26-generic N/A
linux-firmware 1.106
SourcePackage: linux
UpgradeStatus: Upgraded to raring on 2013-05-25 (46 days ago)
dmi.bios.date: 12/06/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A27
dmi.board.name: 0W612R
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA27:bd12/06/2011:svnDellInc.:pnLatitudeE6500:pvr:rvnDellInc.:rn0W612R:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Latitude E6500
dmi.sys.vendor: Dell Inc.
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