OpenGL 3 support in Mesa
Thanks for what you've done Intel! Keep up the good work!
GM965 performance regression in Ubuntu 11.10?
I've a Thinkpad with Intel GM965. It worked quite well (with some occasional crashes/hangs) in Ubuntu 11.04. After I upgraded to 11.10, the crashes appear to have been fixed (yayyy!), but performance seems to have been significantly degraded (). To the extent that when I drag terminal windows around on my screen the position updates at what feels like ~6 fps. The compiz workspace sliding animation on Ctrl+Alt+Left/Right sometimes drops *all* the intermediate frames. I can sometimes see *tearing* when I'm scrolling text in less in a gnome-terminal!
What's a user to do? Wait and hope for 12.04? Assume the bug is in the Intel video driver and file a bug? Search for backports of newer driver versions?
Seconded on both of these.
Originally Posted by Kivada
I've got i810, i820, and i915 systems laying around, and only i915 is still supported by anything but the VESA driver. There is no KMS for i810/i820. That would've been fine, but the only use I have for several of those systems is as movie playback machines. VESA + i820 + P4-celeron laptop = slideshow. I've had to downgrade to Ubuntu 10.04 in order to get back decent video drivers, but eventually that version will lose LTS support. Is there any hope that someone will provide an alternative xorg-video-intel-legacy driver that preserves the old UMS code paths? I couldn't care less about 3D on these machines, but EXA/UXA, XvMC and DVD playback are very desirable.
I'd love to see intel switch to a gallium driver for newer architectures now that you're catching up on the GL version number. I would understand if you wait until you've hit GL 3.3 and/or GL 4.x, but I'd love to see it sooner rather than later. If you've got good performance reasons not to, we'd love to hear them. At this point, I've been assuming that it's just a desire to spend time improving features instead of spending man-hours on refactoring/rewriting the code for the gallium infrastructure.
And yes, OpenCL is a big one for me. Ideally through Gallium, but I'll take what I can get. This is the main reason why I haven't been buying any recent intel systems. My work required me to have something which could handle OpenCL in hardware, and therefore my laptops had to come with AMD/Nvidia graphics.
I'm booting in EFI mode on my Macbook Pro to use the integrated Sandy Bridge IGP.
Originally Posted by eugeni_dodonov
I've got two problems with this:
1) I have to add the 'Manual override of LVDS channels' patch to get a picture.
2) I get strange graphics corruption with RC6 enabled (and can't disable VD-t because I don't have a BIOS)
Should I file bugs about this, or email the mailing list?
Maybe a new test could be added to your quality checks. gl2benchmark features 4 possible tests based on osg, which several games use, test 4 is always rendered wrong, test 3 seems to be gfx chip specific. There i mentioned it already:
gl2benchmark is preinstalled on current Kanotix live images. For snb you could use a trial iso from
There you can also notice the x server crash if you enable KDE 4 effects (via OpenGL) before starting gl2benchmark...
ps: using that tool i also found a bug in fglrx drivers which lasted about 11 month and had also to do with test 3/4 and missing pointsprites.
I have Intel GMA 4500 MHD, and i915 driver. On any Linux distribution I have to add acpi_osi=Linux argument in the grub, or else I canīt set screen brightness (screen is black).
On 2.6.32 and older kernels thereīs no such issue.
Similar to branding such as Centrino or "Made for Windows 7", I would like to see an Intel certification of a laptop that basically means that it's "Linux ready".. As you noted, some of the Intel graphics solutions have really cruddy support under Linux while others work very well..
Obviously, Optimus laptops wouldn't get this certification due to lack of hardware support from nvidia and laptops with the open source Intel graphics drivers would..
Basically getting a little certification / sticker on the laptop for all the hard work that you've done for the Linux drivers. You've already done the work, so you might as well brag about it & take credit for it.
That would mean a lot to me because I almost accidently bought a laptop with poorly supported hardware under Linux.
Q: Is there any way that you can push for a an Intel certification for Linux? Maybe work with Canonical and get an "Ubuntu ready" certification for 12.04 LTS? Or better yet.. "Made for Ubuntu 12.04?"
Last edited by Sidicas; 01-13-2012 at 12:55 PM.
Thanks for your answers, I was very interested about Intel support for Ivy Bridge and new GPUs, OpenGL 3.x/4.x compliance and Gallium3D. I hope you will choose Gallium3D for your next drivers.
What about OpenCL compliance?
This is the one thing that I find hypocritical about the linux community that drives me up the wall being part of the linux community myself... It's ok to have a bajillion different window managers and forks of all sorts of projects all over the place (libreoffice / openoffice, Trinity / KDE,etc. etc.)..
Originally Posted by Nedanfor
But then when a hardware manuf. goes off and does their own driver which they release fully open source, some people in the community has a fit and wants to force the manuf. to use something they didn't want to use.
It's not right, all I'm sayin'. If you want the Intel driver in Gallium, port it yourself. As the Intel rep stated earlier, there is no benefit in doing so and they haven't yet heard any compelling reasons from the community that would justify a port to gallium.
Why are so many people giving Intel a hard time about using their "Freedom" when they chose not to use Gallium? Would it be just as appropriate for me to go to a KDE project and tell them they should use Gnome or vice-versa?
Last edited by Sidicas; 01-13-2012 at 01:38 PM.