Updated and Optimized Ubuntu Free Graphics Drivers

[oibaf]

I just wonder what -ati are you using since 6.14.99+git1206080959.588837~gd~o is for 11.10 and also failed to build in the PPA, so you can't be really using that.

[dreamlayers]

I just wonder what -ati are you using since 6.14.99+git1206080959.588837~gd~o is for 11.10 and also failed to build in the PPA, so you can't be really using that.

I was using 1:6.99.99+git1209261624.e8cb0b~gd~p, the right driver, from your PPA. I just copied the wrong string into my post. Sorry.

[oibaf]

I was using 1:6.99.99+git1209261624.e8cb0b~gd~p, the right driver, from your PPA. I just copied the wrong string into my post. Sorry.

No idea what's happening there - you may want to search and eventually report a bug for that issue (and eventually post here the link of the bug) if you want to see it fixed, see the debugging section on main page of the PPA.

[dreamlayers]

The 10 FPS issue isn't linked to using drivers from the Oibaf PPA. Exactly the same thing can happen with 1:6.14.99~git20111219.aacbd629-0ubuntu2. It does not happen every time, so it can be confusing.

What happens is unhandled interrupts cause the kernel to disable the radeon IRQ. This is the IRQ used for waiting for vertical retrace, and I guess that wait times out after 0.1s. When things work properly, I can see radeon interrupt count increasing in /proc/interrupts while running glxgears and for a few moments afterwards. When things don't work properly, that count is 200000 and this appears in dmesg:

[   33.806034] irq 5: nobody cared (try booting with the "irqpoll" option)

followed by a long backtrace and

[   33.806980] handlers:
[   33.807173] [<e8a57cc0>] radeon_driver_irq_handler_kms
[   33.807180] Disabling IRQ #5

This happened about 5 seconds after all the drm initialization messages. As you can see, the radeon irq handler was there. It just acted as if the interrupt was not from the video card. Earlier on there is:

[   24.047694] ACPI: PCI Interrupt Link [LNKA] enabled at IRQ 5
[   24.047707] PCI: setting IRQ 5 as level-triggered
[   24.047723] radeon 0000:01:00.0: PCI INT A -> Link[LNKA] -> GSI 5 (level, low) -> IRQ 5

Since the interrupt is level triggered, I don't think it would be reasonable to use the noirqdebug kernel option to prevent the interrupt from being disabled. It would just keep interrupting and make everything slow or even unresponsive. I'll do some more investigation and report a bug eventually if it seems like there's a bug and not a hardware issue.

[Dan555a]

I see the brightness of the gears constantly alternating between dark and bright

[oibaf]

I see the brightness of the gears constantly alternating between dark and bright

It was already asked and replied, see older post in this thread.

[curaga]

Please don't reply to spambots, unlike trolls, they don't need our feeding

[oibaf]

Please don't reply to spambots, unlike trolls, they don't need our feeding

Oh well, Firefox hides the broken image links, for some reason they are only visible when searching user posts, and I wasn't smart enough to notice him

[carestad]

They are not intended to be used on 12.10. I'd hope to provide packages for 12.10 also when and if I'll find the time.

I'd love to be able to test it in 12.10 as well. Hope you find the time to port it some time

[oibaf]

I'd love to be able to test it in 12.10 as well. Hope you find the time to port it some time

I have a test build of mesa for 12.10 here:
https://launchpad.net/~oibaf/+archive/test/

Untested (I am still on 12.04). Please test, if confirmed working I'll move it to main PPA.