[haiku-bugs] Re: [Haiku] #8001: Regression: intel_extreme mode setting
- From: "jalopeura" <trac@xxxxxxxxxxxx>
- Date: Wed, 09 Nov 2011 22:01:14 -0000
#8001: Regression: intel_extreme mode setting
-------------------------------------+-------------------------------------
Reporter: jprostko | Owner: mmlr
Type: bug | Status: in-progress
Priority: high | Milestone: R1
Component: | Version: R1/Development
Drivers/Graphics/intel_extreme | Keywords: intel_extreme,
Resolution: | 1400x1050, mode
Blocked By: | Blocking:
Has a Patch: 0 | Platform: All
-------------------------------------+-------------------------------------
Comment (by jalopeura):
I was having a similar problem. I tracked the problem down to the
resolution granularity used when rounding (as mentioned above in mmlr's
comment). Here are the relevant lines from xrandr --verbose:
{{{
1024x600 (0x43) 51.0MHz -HSync -VSync *current +preferred
h: width 1024 start 1117 end 1152 total 1250 skew 0 clock
40.8KHz
v: height 600 start 601 end 606 total 680 clock
60.0Hz
}}}
As you can see, the start value is 1117. As you may be aware, 1117 is a
prime, so there are only two possible granularities which would not result
in the value being changed when rounded. Since 1117 would not work with
the other values above, I elected to go with 1. It fixed the problem, and
now Haiku works on my N10 chip.
Since my solution involves simply replacing an '8' with a '1', I have not
bothered to attached a patch. (If anyone really wants one, I'd be happy to
generate one and attach it.)
--
Ticket URL: <http://dev.haiku-os.org/ticket/8001#comment:19>
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