[Intel-gfx] Picture quality on laptop LCD with i915GM chipset.

[Pedro Ribeiro]

On 16 May 2010 21:06, Pedro Ribeiro <pedrib at gmail.com> wrote:
> On 16 May 2010 20:57, SD <sd.domrep at yahoo.com> wrote:
>> --- On Sun, 5/16/10, Florian Mickler <florian at mickler.org> wrote:
>>
>>> From: Florian Mickler <florian at mickler.org>
>>> Subject: Re: [Intel-gfx] Picture quality on laptop LCD with i915GM chipset.
>>> To: "SD" <sd.domrep at yahoo.com>
>>> Cc: intel-gfx at lists.freedesktop.org
>>> Date: Sunday, May 16, 2010, 8:22 PM
>>> On Fri, 14 May 2010 16:17:56 -0700
>>> (PDT)
>>> SD <sd.domrep at yahoo.com>
>>> wrote:
>>>
>>> > Dear All.
>>>
>>> > Problem is - Picture on my laptop LCD is not suitable
>>> for eyes. I can't explain exactly why, but it looks like it
>>> is not smooth, it is rough, after some time (one hour or
>>> two) it starts to hurt eyes. Some time I think it is not
>>> stable and it is blinking. I do not use anti-aliasing, all
>>> my fonts are clear without shadows and it is very noticeable
>>> that something different, they are not look solid or stable,
>>> like it on OpenSuse 11.1. And it is not just fonts, anything
>>> on screen looks different.
>>> >
>>> > Thanks for comments.
>>> >
>>>
>>> Hi!
>>>
>>> I'm sorry if this is maybe too basic. But are you aware of
>>> screen
>>> resolutions and the fact, that if the graphics-card drives
>>> your
>>> lcd-screen at a different-then-optimal resolution some
>>> monitors do
>>> interpolation of pixels to ''multiplex'' them to the
>>> monitor-resolution.
>>>
>>> This can be easily detected by looking at the
>>> /var/log/Xorg.0.log in
>>> both the good and the bad case. (or by looking at the
>>> output of
>>> 'xrandr').
>>>
>>> Cheers,
>>> Flo
>>>
>>
>> I took digital pictures of my screen. So left side is Fedora 13, right - OpenSuse11.1
>> Xrandr gives me the same output, except for something which is different of xrandr version.
>>
>> So please take a look at the pictures of my screen (part of it).
>> It is clearly - something is different, but:
>> "Subpixel:   horizontal rgb"  -  in both OS.
>>
>> Thanks.
>>
>>
>>
>> _______________________________________________
>> Intel-gfx mailing list
>> Intel-gfx at lists.freedesktop.org
>> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
>>
>>
>
> I can clearly see a difference, but I seriously doubt the fault lies
> on the intel driver. Can you try compiling a .33 kernel on Opensuse
> and see if you have the same problem?
>
> Regards,
> Pedro
>

Actually you don't even need to do that, you can install packages with
2.6.34-rc7 from here:

http://download.opensuse.org/repositories/Kernel:/HEAD/openSUSE_Factory/i586/
or
http://download.opensuse.org/repositories/Kernel:/HEAD/openSUSE_Factory/x86_64/
(if you have 64 bit)

I believe the package you want is
kernel-desktop-2.6.34-rc7.31.1... etc

Disclaimer: I do not have opensuse so I'm just guessing