[ltp] after updating xserver-xorg-video-intel can not change back
to virtual terminals
Peter Germer
linux-thinkpad@linux-thinkpad.org
Fri, 29 Jan 2010 13:02:14 +0300
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2010/1/29 Bj=F8rn Mork <bjorn@mork.no>
> Peter Germer <germerp@gmail.com> writes:
>
> > The only difference is that my screen starts flickering only after resu=
me
> > from suspend-to-ram, as mentioned in comment #11 by damjan, who has the
> same
> > X60s. This problem comes out only in the .32 kernel, but never in .30.
> >
> > The guys in the previous forum mentioned this bug:
> >
> > http://bugzilla.kernel.org/show_bug.cgi?id=3D14781
> >
> > This bugreport contains a couple of kernel patches, but aftefr applying
> the
> > one for .32 (comment #15) my new .32 kernel still have the flickering
> > problem. Another sollution is setting 'options i915 powersave=3D0' in
> > /etc/modprobe.d/i915, but in my opinion disabling powersave mode is not=
a
> > real bug fix. By the way, in Ubuntu kernels since 2.6.32-11.15 disbaled
> > powersave mode is the default.
>
> Did you try the fix from Jesse Barnes? It's in the 2.6.32 stable tree
> as well, so it will be in Squeeze eventually:
>
> http://git.kernel.org/?p=3Dlinux/kernel/git/stable/linux-2.6.32.y.git;a=
=3Dcommit;h=3Db9945e752afed38518d7041ae00dea25f6272a34
>
> (well, this does disable the clock adjustments and thereby probably
> much of the powersavings, but the comment doesn't leave us any other
> option at the moment - whether we like it or not)
>
> > Do you have the same problem with the new .32 kernel?
>
> Personally, I haven't seen this flickering issue at all, so it's most
> likely depending on your hardware. I'm using a X301 with a GM45
> chipset.
>
>
No, I did not try that patch, but as the result is the same as turning off
powersave mode in modeprobe.d, I will recompile my kernel. Since I added th=
e
option to the module the flieckering disappeared, but I further tests
because some users reported that switching the screen off is independent
from flickering.
Thanks for the quick answers!
Peter
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<div dir=3D"ltr"><div class=3D"gmail_quote">2010/1/29 Bj=F8rn Mork <span di=
r=3D"ltr"><<a href=3D"mailto:bjorn@mork.no">bjorn@mork.no</a>></span>=
<br><blockquote class=3D"gmail_quote" style=3D"margin: 0pt 0pt 0pt 0.8ex; b=
order-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div class=3D"im">Peter Germer <<a href=3D"mailto:germerp@gmail.com">ger=
merp@gmail.com</a>> writes:<br>
<br>
</div><div class=3D"im">> The only difference is that my screen starts f=
lickering only after resume<br>
> from suspend-to-ram, as mentioned in comment #11 by damjan, who has th=
e same<br>
> X60s. This problem comes out only in the .32 kernel, but never in .30.=
<br>
><br>
> The guys in the previous forum mentioned this bug:<br>
><br>
> <a href=3D"http://bugzilla.kernel.org/show_bug.cgi?id=3D14781" target=
=3D"_blank">http://bugzilla.kernel.org/show_bug.cgi?id=3D14781</a><br>
><br>
> This bugreport contains a couple of kernel patches, but aftefr applyin=
g the<br>
> one for .32 (comment #15) my new .32 kernel still have the flickering<=
br>
> problem. Another sollution is setting 'options i915 powersave=3D0&=
#39; in<br>
> /etc/modprobe.d/i915, but in my opinion disabling powersave mode is no=
t a<br>
> real bug fix. By the way, in Ubuntu kernels since 2.6.32-11.15 disbale=
d<br>
> powersave mode is the default.<br>
<br>
</div>Did you try the fix from Jesse Barnes? =A0It's in the 2.6.32 stab=
le tree<br>
as well, so it will be in Squeeze eventually:<br>
<a href=3D"http://git.kernel.org/?p=3Dlinux/kernel/git/stable/linux-2.6.32.=
y.git;a=3Dcommit;h=3Db9945e752afed38518d7041ae00dea25f6272a34" target=3D"_b=
lank">http://git.kernel.org/?p=3Dlinux/kernel/git/stable/linux-2.6.32.y.git=
;a=3Dcommit;h=3Db9945e752afed38518d7041ae00dea25f6272a34</a><br>
<br>
(well, this does disable the clock adjustments and thereby probably<br>
much of the powersavings, but the comment doesn't leave us any other<br=
>
option at the moment - whether we like it or not)<br>
<div class=3D"im"><br>
> Do you have the same problem with the new .32 kernel?<br>
<br>
</div>Personally, I haven't seen this flickering issue at all, so it=
9;s most<br>
likely depending on your hardware. =A0I'm using a X301 with a GM45<br>
chipset.<br>
<br></blockquote><div>=A0</div><div>No, I did not try that patch, but as th=
e result is the same as turning off powersave mode in modeprobe.d, I will r=
ecompile my kernel. Since I added the option to the module the flieckering =
disappeared, but I further tests because some users reported that switching=
the screen off is independent from flickering.<br>
<br>Thanks for the quick answers!<br><br><br>Peter<br></div></div></div>
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