Intel's Unreleased 3.0 X.Org Driver Gets More Fixes For DRI3/Present

[imirkin]

Poor intel, when my Kaveri apu was new it had two drivers, now it has amdgpu, radeon and unsupported crimson that all I can use.

The amdgpu (and radeon for SI+ hw) DDX's are basically identical to modesetting -- they also use GLAMOR, and by extension are just as slow.

[haagch]

Dedicated opengl 3d programs should not suffer from performance loss. Try gtkperf or - worse - qtperf for a start.

Oh, maybe intel can fix corrupted tooltips in chromium some time?

[treba]

Recently got rid of xf86-video-intel. No regrets

Thanks alot!
That's so much better

[franglais125]

Thanks alot!
That's so much better

What intel chip are you using? And Xserver? (I guess I could ask johnp117 as well?)

I'm running Debian stable, Xserver 1.16, with a backported 4.4 kernel.
GNOME Shell on Sandybridge is much slower if I remove the intel driver.
I've been trying to understand what's going on, but it's a bit difficult to track. Apparently I don't have proper GL acceleration in modesetting, and it falls back to swrast.

From what I could find, modesetting (within xserver) got proper GLAMOR on 1.17. Can anyone confirm? Or am I just being an idiot?

[franglais125]

You can try the xfce4 desktop in debian easily, install xfce4 meta package with Synaptic, it is easy to switch desktops in the login manager. Xfce desktop works fine without graphics acceleration and you can use it in very old devices, my record is PIII 800Mhz 500MB ram 10 inch tabletpc.

Thanks for your answer.
I've used xfce in the past, but it's simply not my cup of tea. I realize GNOME shell is heavier, but Sandybridge graphics are enough for it.

You can do distro upgrade to testing, then you can use xorg 1.18 and mesa graphics driver is more up to the date. When using open source drivers, you want to have the latest software of everything.

I would totally use Debian testing, except I really need the stability these days for some critical work. But no so much in the future, so we'll see.
As for the drivers, I'm using backported software: linux 4.4, mesa 11.1.2 and xserver-xorg-video-intel 2:2.99.917 (so roughly same as testing ). The only thing missing is a backport of xserver...

[mannerov]

The amdgpu (and radeon for SI+ hw) DDX's are basically identical to modesetting -- they also use GLAMOR, and by extension are just as slow.

I assumed they were similar too, but they are not. I had weird bugs with modesetting when changing resolution, that don't get with amdgpu.

As for your glamor comment, that's not very accurate: it used to be slow, but last years a lot of efforts were spent to make it fast, so it's not a worry anymore.

[theriddick]

Think I tried DRI3 with the ati driver and amdgpu / CIK thing but got a black screen. Seemed for me it only worked in DRI2 mode for CIK (390x)??

[johnp117]

What intel chip are you using? And Xserver? (I guess I could ask johnp117 as well?)
[...]
From what I could find, modesetting (within xserver) got proper GLAMOR on 1.17. Can anyone confirm? Or am I just being an idiot?

i5-4200U (Acer Aspire V5-573G); i3/sway on Arch Linux with xserver ~1.18 and kernel 4.5.
Both 1.17 and 1.18 feature various improvements in regards to modesetting and GLAMOR.

[theriddick]

Ok I will give that a go once my video card comes back from RMA (another 2 or so weeks).

[Tiger_Coder]

I have equal fps in all three drivers. Amdgpu draws reflections in Tomb Raider 2013 benchmark fine, with Crimson there is black areas in Laras face. Amdgpu renders games more detailed than crimson, so I do not complain mesa software.

Wait what? Tomb Raider 2013? Where do you get that? In Steam it is still not realeased for Linux?