Ralf Hildebrandt, this bug report is being closed due to your last
comment
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/709677/comments/12
regarding this being fixed with an update. For future reference you can
manage the status of your own bugs by clicking on the current status in
the
@Wladimir Mutel (mwg): Your solution work for me.
Kernel: 3.2.0-25
Ubuntu 12.04
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https://bugs.launchpad.net/bugs/709677
Title:
[drm] MTRR allocation failed. Graphics performance may
The problem is still there on my Acer 1830T, 4GB RAM with Quantal kernel
3.4.0-1-generic, x86_64
$ cat /proc/mtrr
reg00: base=0x0 (0MB), size= 2048MB, count=1: write-back
reg01: base=0x0ffe0 ( 4094MB), size=2MB, count=1: write-protect
reg02: base=0x08000 ( 2048MB), size=
ok, sorting my mtrr file by its second field, I noticed this 200MB region
covered by 3 regs : 3,4,5
I made an initramfs hook /usr/share/initramfs-tools/scripts/init-top/screw_mtrr
:
--
#!/bin/sh
PREREQ=
prereqs()
{
echo $PREREQ
}
case $1 in
# get pre-requisites
prereqs)
prereqs
Btw, enable_mtrr_cleanup mtrr_spare_reg_nr=1 did not help in my case.
Now, by my subjective perception, graphic performance of my Intel
Arrandale IGP with 256 MB shared-RAM framebuffer has become somewhat
livelier. At least judging by Flash video and heavily-animated Flash
games.
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You
Fixed in linux-image-3.2.0-18-generic on precise
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Title:
[drm] MTRR allocation failed. Graphics performance may suffer.
To manage notifications
still experiencing this bug with latest proposed kernel
2.6.38-11-generic #47-Ubuntu SMP Fri Jul 15 19:27:09 UTC 2011 x86_64
x86_64 x86_64 GNU/Linux
work-around (comment #7) is still valid
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If mtrr_cleanup fails, see: https://lkml.org/lkml/2011/6/3/22
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Title:
[drm] MTRR allocation failed. Graphics performance may suffer.
To manage
Still there in 2.6.38-9-generic on natty
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Title:
[drm] MTRR allocation failed. Graphics performance may suffer.
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** Changed in: linux (Ubuntu)
Status: New = Confirmed
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Title:
[drm] MTRR allocation failed. Graphics performance may suffer.
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confirming problem and work-around on release version of natty
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Title:
[drm] MTRR allocation failed. Graphics performance may suffer.
--
GRUB_CMDLINE_LINUX=enable_mtrr_cleanup mtrr_spare_reg_nr=1
solves the issue...
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Title:
[drm] MTRR allocation failed. Graphics performance may
Hi Ralf,
If you could also please test the latest upstream kernel available that would
be great. It will allow additional upstream developers to examine the issue.
Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the
upstream kernel, please remove the
I already performed the upstream-testing!
** Changed in: linux (Ubuntu)
Status: Incomplete = New
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Title:
[drm] MTRR allocation failed.
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Title:
[drm] MTRR allocation failed. Graphics performance may suffer.
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It's not a regression, since 2.6.37 reports the same message.
** Tags removed: regression-release
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Title:
[drm] MTRR allocation failed.
Testing mainline kernel 2.6.38-rc2 from http://kernel.ubuntu.com
/~kernel-ppa/mainline/v2.6.38-rc2-natty/
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Title:
[drm] MTRR allocation failed.
mainline kernel is looking similar:
[3.221143] [drm] Initialized drm 1.1.0 20060810
[3.240051] usb 5-1: new full speed USB device using uhci_hcd and address 2
[3.332112] i915 :00:02.0: PCI INT A - GSI 16 (level, low) - IRQ 16
[3.349466] i915 :00:02.0: setting latency
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