[Intel-gfx] About: i915

[Clemens Eisserer]

Well when it comes to 3D performance, I also only see about 20-40% of
the performance I see on Windows-XP.
I am using Fedora8 where I am able to play many even modern games
(well for me they are quite modern ;) ) on XP, but on Linux tuxracer
with low detail seems to be the limit (one of my two cores is 20%
loaded with tuxracer, thats it).

The whole accaleration currently leaves a lot to be desired. 2D Xaa
doesn't accalerate most, 2D EXA is really slow (even slower than Xaa
on my 945GM when running KDE) and 3D is so weak that I have to reduce
resolution to 800x600 on my Core2Duo to be able to play tuxracer
without stuttering.

Well, hope things will become better soon...

lg Clemens

2008/4/26 Jin, Gordon <gordon.jin at intel.com>:
>
>
> I don't think these symptons are normal. But I'm not using Ubuntu, so I'm
> CCing intel-gfx and Bryce (from Ubuntu) to see if they see these issues too.
>
>
> -Gordon
>
>  ________________________________
>  From: Rodolfo Ferreira [mailto:rodolfopacas at gmail.com]
> Sent: Saturday, April 26, 2008 7:21 AM
> To: Jin, Gordon
> Cc: michel at tungstengraphics.com
> Subject: About: i915
>
>
> Hi there,
>
> First off, I'd like to report my video card.
> - Chipset: 915G
> - This is a Dell Latitude 120L lapatop;
> - lspci
> 00:00.0 Host bridge: Intel Corporation Mobile 915GM/PM/GMS/910GML Express
> Processor to DRAM Controller (rev 03)
> 00:02.0 VGA compatible controller: Intel Corporation Mobile 915GM/GMS/910GML
> Express Graphics Controller (rev 03)
> 00:02.1 Display controller: Intel Corporation Mobile 915GM/GMS/910GML
> Express Graphics Controller (rev 03)
> 00:1b.0 Audio device: Intel Corporation 82801FB/
>
> FBM/FR/FW/FRW (ICH6 Family) High Definition Audio Controller (rev 03)
> 00:1c.0 PCI bridge: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family)
> PCI Express Port 1 (rev 03)
> 00:1c.3 PCI bridge: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family)
> PCI Express Port 4 (rev 03)
> 00:1d.0 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
> Family) USB UHCI #1 (rev 03)
> 00:1d.1 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
> Family) USB UHCI #2 (rev 03)
> 00:1d.2 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
> Family) USB UHCI #3 (rev 03)
> 00:1d.3 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
> Family) USB UHCI #4 (rev 03)
> 00:1d.7 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
> Family) USB2 EHCI Controller (rev 03)
> 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev d3)
> 00:1f.0 ISA bridge: Intel Corporation 82801FBM (ICH6M) LPC Interface Bridge
> (rev 03)
> 00:1f.1 IDE interface: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family)
> IDE Controller (rev 03)
> 02:00.0 Ethernet controller: Broadcom Corporation BCM4401-B0 100Base-TX (rev
> 02)
> 02:03.0 Network controller: Intel Corporation PRO/Wireless 2200BG Network
> Connection (rev 05)
>
> - Using Ubuntu 8.04 Hardy Heron.
>
> ===========================
>
> Now, I'd like to share my experience with this video card.
>
> On Windows xp, I got no problems. Everything works just fine. Games, movies,
> everything.
>
> The thing is, I do NOT want to use Windows anymore. And since I tried Ubuntu
> I have run into too many problems related to video-stuff.
>
> VIDEO-RELATED ISSUES
>
>
> I can not run a movie using the apropriate codec. (using gstreamer codec to
> watch .avi video format). (1)There is a sound delay. (2)The movie gets
> paused unexpectedly. (3)When rewinding/forwarding the movie, the image gets
> blured. This happens with compiz-fusion turned off and Metacity is selected
> as my default window manager. I don't know whose fault it is: intel's, OGL's
> driver (that's why I emailed michel at tungstengraphics.com) or X's.
>
>
> GAME-RELATED ISSUES
>
> (4)When exiting a game that was launched on fullscreen mode, my video
> resolution is set to 640x480.
>
> (5)Performance is very very poor running games with Compiz-fusion enabled. I
> still don't know why this happens.. And it doesn't change when compiz-fusion
> is turned off. Is this because of open GL?
>
>
> (6)As if the video card not working @100% of what I believe it's capable of
> wasn't enough, the audio fails to work properly as well (with Compiz-Fusion
> enabled).
>
> OTHER ISSUES
>
> Compiz-fusion: (7)when it's enabled, everything else runs too slowly.
>
> (8)I can't even scroll my gmail page up and down... It seems gmail is too
> heavy (something really annoying)
>
> I wish you could provide me a definite solution to get this solved, Mr. Jin.
>
> Like I said, I'm on Ubuntu hardy heron. Please tell me if this video card's
> behavior is normal. Or what I should do to get rid of this poor-performance
> issue. Seeing this video card not fully working on Ubuntu is really
> frustrating.
>
>
>
>
> Thank you,
>
> Rodolfo.
>
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