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Intel GPU powersaving

By Matthew Garrett at 02/23/2010 - 18:13

We tried some new Intel powersaving code in the F12 cycle, but it caused
a range of problems including screen flickering and crashes. I've
reworked this a little and it seems to work on a machine that had
problems in the past, so I'd like to try it again. If anyone with an
Intel GPU (except GMA500, 810, 815 and 830) would like to give the F13
kernels at <a href="http://koji.fedoraproject.org/koji/taskinfo?taskID=2009928" title="http://koji.fedoraproject.org/koji/taskinfo?taskID=2009928">http://koji.fedoraproject.org/koji/taskinfo?taskID=2009928</a> a
go and let me know if they result in graphical glitches or hangs that
you don't otherwise have with F13, that would be a great help.

Comments

Re: Intel GPU powersaving

By Fabian Deutsch at 02/24/2010 - 04:54

Hello.

Am Dienstag, den 23.02.2010, 22:13 +0000 schrieb Matthew Garrett:

I'm using an Iintel GMA 945 (Macbook 2.1), the above kernel does not
behave different than 2.6.33-0.46. That means:
- GDM works (again)
- No flickering at boot
- Logging in to GNOME blanks the screen, even a VT switch does not bring
the backlight(?) back. (might this just be an gnome-power problem?
related to ...)
- ... adjusting brightness does not work.

All in all the intel driver was quite unstable since 2.6.31-5.
<a href="https://bugzilla.redhat.com/show_bug.cgi?id=558439" title="https://bugzilla.redhat.com/show_bug.cgi?id=558439">https://bugzilla.redhat.com/show_bug.cgi?id=558439</a>

Greetings
- fabian

Re: Intel GPU powersaving

By Rudolf Kastl at 02/23/2010 - 19:41

still got hangs on a lenovo x301. with 2.6.32/31 the hangs are gone.

2010/2/23 Matthew Garrett < ... at srcf dot ucam.org>:

Re: Intel GPU powersaving

By Matthew Garrett at 02/23/2010 - 20:05

And with other F13 .33 kernels?