lkml.org 
[lkml]   [2005]   [Apr]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: Linux 2.6.12-rc2
From
Benjamin Herrenschmidt wrote:
> > 1. When resuming from S3 suspend and having switched off the backlight
> > with radeontool the backlight isn't switched back on any more.
>
> I'm not sure what's up here, it's a nasty issue with backlight. Can
> radeontool bring it back ?

Before suspending I power down the backlight with "radeontool light off"
and with 2.6.11 the display is properly restored. With 2.6.12rc2 the
backlight remains switched off and if I switch it on with radeontool it
becomes lighter, but there's still no text from the fbcon, just the blank
screen.

> > 2. I'm using fbcon as my primary work environment, but tty switching has
> > become _very_ sloppy, it's at least a second now, while with 2.6.11 it
> > was as fast as a few ms. Is this caused by the "proper PLL accesses"?
>
> Yes. Unfortunately. It's surprised it is that slow though, there
> shouldn't be more than 5 or 6 PLL accesses on a normal mode switch, with
> 5ms pause for each, that should still be very reasonable. It looks like
> we are doing a lot more accesses which I don't completely understand.

Can you tell me which function you have in mind, so that I can insert
some printks to see how often it's called?

Cheers,
Moritz
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-04-07 19:54    [W:0.044 / U:2.104 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site