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Re: sleepy linux 2.6.23-rc9
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From:
H. Peter Anvin <hpa@...>
To: Clemens Koller <clemens.koller@...>
Cc: Pavel Machek <pavel@...>, <tglx@...>, kernel list <linux-kernel@...>
Subject:
Re: sleepy linux 2.6.23-rc9
Date: Monday, October 8, 2007 - 8:52 pm
Clemens Koller wrote:
quoted text
>> >> When I boot init=/bin/bash vga=791 (vesa framebuffer), most wakeups >> are caused by cursor painting (I should fix that some day, I >> guess). But... the cursor blinking does not even work properly! >> >> It blinks at normal speed, then (randomly) it blinks slowly, then gets >> back to normal speed, then inserts longer delay. > > Is the effect a beat that it has roughly the frequency of your Notebooks > screen refresh rate (60Hz)? (in german: Schwebung) > >> The effect is so nice that I thought about youtube ;-). Thinkpad >> x60.. question is, how to debug it? > > No idea... check where the register of the HW cursor blink rate > gets written? But as it seems to be so nice, please submit a patch > which enables this for all platforms. ;-) >
For the VESA framebuffer I would assume the cursor blinking is done in software (if done at all.) -hpa -
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Messages in current thread:
sleepy linux 2.6.23-rc9
, Pavel Machek
, (Mon Oct 8, 6:05 pm)
Re: sleepy linux 2.6.23-rc9
, Antonino A. Daplas
, (Tue Oct 9, 12:33 am)
Re: sleepy linux 2.6.23-rc9
, Clemens Koller
, (Mon Oct 8, 7:46 pm)
Re: sleepy linux 2.6.23-rc9
, H. Peter Anvin
, (Mon Oct 8, 8:52 pm)
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