asus-ul30 team mailing list archive
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Message #00192
Re: UL30vt and screen flickering/blinking lines
Not sure how to do that or if it's possible form /etc/default/grub. Adding
custom entries is done in /etc/grub.d/40_custom, but my guess is this would
create two menu items for any kernel configured there (one for the custom,
one for the automagically created ones). There's a pretty decent amount of
info at https://help.ubuntu.com/community/Grub2
Jonathan Wagner
On Thu, May 6, 2010 at 7:15 PM, Joel VanderWerf <joelvanderwerf@xxxxxxxxx>wrote:
>
> Thanks, Jonathan, that seems to work.
>
> (I'd still like to know how to set the cmdline of _one_ linux entry, rather
> than all of them, but that's just out of curiosity and not on topic here.)
>
> Jonathan Wagner wrote:
>
>> Edit /etc/default/grub and then run update-grub to update the (new in
>> grub2) /boot/grub/grub.cfg.
>>
>> The line you're interested in is GRUB_CMDLINE_LINUX_DEFAULT. Mine is set
>> to the following:
>>
>> GRUB_CMDLINE_LINUX_DEFAULT="acpi_backlight=vendor i915.powersave=0 vga=792
>> quiet splash"
>> Jonathan Wagner
>>
>>
>>
>> On Thu, May 6, 2010 at 6:38 PM, Joel VanderWerf <joelvanderwerf@xxxxxxxxx<mailto:
>> joelvanderwerf@xxxxxxxxx>> wrote:
>>
>>
>> Works for me when I add that parameter at boot time, but I don't
>> know how to permanently add it. The answer used to be menu.lst. But
>> in 9.10 and later, where does it go? Somewhere in /etc/grub.d, I
>> suppose?
>>
>> I'm using 9.10 on ul80vt, with kernel 2.6.33-020633-generic.
>>
>> Appreciate any suggestions...
>>
>>
>> Tero Mononen wrote:
>>
>> Hi
>>
>> Kernel parameter i915.powersave=0 in grub fixes this issue and
>> I'm very pleased by that.
>>
>>
>> Tero Mononen
>>
>> On 04/13/2010 05:42 PM, Ralf Barth wrote:
>>
>> On Tue, 13 Apr 2010 10:32:54 -0400
>> Michael Hess<mhess@xxxxxxxxxxx <mailto:mhess@xxxxxxxxxxx>>
>>
>> wrote:
>>
>>
>> Can others confirm that it's definitely a kernel
>> problem? I'm trying
>> to decide if I should exchange the laptop for another.
>>
>> Definitely a kernel problem. You could easily downgrade to
>> 2.6.31 and
>> notice the flickering is gone. It's due to new DRM kernel
>> code since
>> 2.6.32 and still present in .34 RCs
>>
>> Cheers,
>> Ralf.
>>
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>
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