1 |
On 08/15/2010 04:27 PM, Walter Dnes wrote: |
2 |
> I'm running 64-bit Gentoo on an Intel 4-core i3 with an Intel integrated |
3 |
> graphics controller. An excerpt from dmesg follows, with the video- |
4 |
> related stuff. Note the two lines that I've split off. They mention |
5 |
> the mtrr type mismatch and the allocation failure. Is this a problem |
6 |
> and if so, what do I do about it? |
7 |
> |
8 |
> [ 0.519939] Linux agpgart interface v0.103 |
9 |
> [ 0.520016] agpgart-intel 0000:00:00.0: Intel HD Graphics Chipset |
10 |
> [ 0.520842] agpgart-intel 0000:00:00.0: detected 131068K stolen memory |
11 |
> [ 0.580462] agpgart-intel 0000:00:00.0: AGP aperture is 256M @ 0xd0000000 |
12 |
|
13 |
Does your BIOS let you set the AGP aperture manually? Couldn't hurt to make |
14 |
it bigger if you're able. The comment about 'stolen memory' sounds a bit evil ;) |
15 |
|
16 |
|
17 |
> [ 0.608643] mtrr: type mismatch for d0000000,10000000 old: write-back new: write-combining |
18 |
> [ 0.608725] [drm] MTRR allocation failed. Graphics performance may suffer. |
19 |
|
20 |
Do you have MTRR support in your linux kernel? It was selected automatically in |
21 |
my SMP kernel config, so I didn't have a choice. |
22 |
|
23 |
> [ 0.946741] Console: switching to colour frame buffer device 240x75 |
24 |
> [ 0.952156] fb0: inteldrmfb frame buffer device |
25 |
|
26 |
I'm wondering if console framebuffer support is really necessary for Intel |
27 |
graphics chips, I dunno. You could try disabling it in your kernel config |
28 |
to see if it make any difference. |
29 |
|
30 |
I'm assuming that all of the dmesg stuff came from boot time, right? Does your |
31 |
/var/cache/Xorg.0.log have any suspicious messages? I'm assuming your X works |
32 |
correctly? Or not. |