HOWTO: Jaunty Intel Graphics Performance Guide

[psyke83]

Disabling tiling is probably not what you actually want. A lot of the complaints about poor 2D performance with 945 are due to tiling being disabled due to GEM not supporting the crazy memory layout needed.

Yes, I know. However, it causes DRI2 to break on my particular system (Dell Inspiron 510m, 855GM graphics), even though tiling has never caused problems before. I decided to keep this guide somewhat conservative in order to minimize problems for users.

[dentaku65]

On my card

00:02.0 VGA compatible controller: Intel Corporation 82852/855GM Integrated Graphics Device (rev 02)

I kept the default Jaunty installation with UXA and false tiling in Xorg. The system is quite good, the only thing I found very bad is flash on web (ie. Youtube), the CPU goes to 100%

I've tried the vanilla kernel 2.6.30rc2 and no problem at all for the performances (flash too); just my old notebook do fan spins all the time
As usual I found the kernel here:
http://kernel.ubuntu.com/~kernel-ppa...e/v2.6.30-rc2/

PS. I discovered now also this one:
http://kernel.ubuntu.com/~kernel-ppa...e/v2.6.30-rc3/
Did not tried yet.

[Cimi86]

any chance for a lpia build?
I don't have i386 here...

[dentaku65]

Good news (at least for me)
I've applied a silly trick to xorg.conf and now also flash is working properly

Section "Device"
Identifier "Configured Video Device"
Option "AccelMethod" "UXA"
VideoRam 65536
EndSection

Yes. Putting the forgotten and deprecated option of VideoRam (in my case 64MB) in xorg.conf fixed everything here.

Kernel:

2.6.28-11-generic

VGA:

00:02.0 VGA compatible controller: Intel Corporation 82852/855GM Integrated Graphics Device (rev 02)

Warning in xorg.0.log:

(WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
(WW) intel(0): libpciaccess reported 0 rom size, guessing 64kB
(WW) intel(0): Register 0x61200 (PP_STATUS) changed from 0xc0000008 to 0xd000000a
(WW) intel(0): PP_STATUS before: on, ready, sequencing idle
(WW) intel(0): PP_STATUS after: on, ready, sequencing on
(WW) intel(0): Register 0x71024 (PIPEBSTAT) changed from 0x00000202 to 0x80000202
(WW) intel(0): PIPEBSTAT before: status: VSYNC_INT_STATUS VBLANK_INT_STATUS
(WW) intel(0): PIPEBSTAT after: status: FIFO_UNDERRUN VSYNC_INT_STATUS VBLANK_INT_STATUS
(WW) intel(0): VideoRam configuration found, which is no longer recommended.
(WW) intel(0): xf86AllocateGARTMemory: allocation of 1536 pages failed
(WW) intel(0): Allocation error, framebuffer compression disabled
(WW) intel(0): xf86AllocateGARTMemory: allocation of 10 pages failed
(WW) intel(0): Chosen PLL clock of 66.5 Mhz more than 2% away from desired 65.0 Mhz
(WW) intel(0): Hardware claims pipe A is on while software believes it is off

I did not touch /proc/mtrr
Hope this helps

[crjackson]

Good news (at least for me)
I've applied a silly trick to xorg.conf and now also flash is working properly

Yes. Putting the forgotten and deprecated option of VideoRam (in my case 64MB) in xorg.conf fixed everything here.

Kernel:

VGA:

Warning in xorg.0.log:


I did not touch /proc/mtrr
Hope this helps

So this is a standard install of Jaunty (stock kernel) and updates with only the xorg changes listed for UXA / 64MB?

[dentaku65]

So this is a standard install of Jaunty (stock kernel) and updates with only the xorg changes listed for UXA / 64MB?

Yes, correct.
Btw, as I post before in this thread my only big, big issue was only on flash video on the web.
Now VideoRam fix this too.

[crjackson]

Yes, correct.
Btw, as I post before in this thread my only big, big issue was only on flash video on the web.
Now VideoRam fix this too.

Great! I've got a lot of testing to do this comming week. I've got my ATI carded lappy working -okay-

Now with all the information in this thread, I hope to get my Intel X3100 working well.

Mods, since this Forum Section will be closed tomorrow. Please make this HOWTO: an active sticky in the appropriate place.

[volanin]

mods, since this forum section will be closed tomorrow. Please make this howto: An active sticky in the appropriate place.

+1

[psyke83]

I tested the 2.6.30-rc3 kernel and performance is slightly worse than rc2 - therefore I won't change the original instructions in the guide.

P.S. I'll request this thread to be moved as soon as Jaunty is released and this forum archived.

[psyke83]

Yes, correct.
Btw, as I post before in this thread my only big, big issue was only on flash video on the web.
Now VideoRam fix this too.

Here's what happens for me:

(WW) intel(0): VideoRam configuration found, which is no longer recommended.
(II) intel(0): Continuing with default 131072kB VideoRam instead of 65536 kB.

I suspect that something else fixed the issue for you, as your output indicates that you filtered only for warnings (WW), whereas the override is mentioned as information (II).

Our graphics device is the same:

00:02.0 VGA compatible controller: Intel Corporation 82852/855GM Integrated Graphics Device (rev 02)