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

2010-05-16 Thread Pedro Ribeiro 
On 15 May 2010 16:42, SD sd.dom...@yahoo.com wrote:


 --- On Sat, 5/15/10, Clemens Eisserer linuxhi...@gmail.com wrote:

 From: Clemens Eisserer linuxhi...@gmail.com
 Subject: Re: [Intel-gfx] Picture quality on laptop LCD with i915GM chipset.
 To: intel-gfx intel-gfx@lists.freedesktop.org
 Date: Saturday, May 15, 2010, 12:56 PM
 Hi,

 Why don't you record a video or take a screenshot to make
 at least
 clear to us whats going on?

 - Clemens

 I do not blame anyone, I know you all want to help.
 I tried to take a picture and take a video, but unfortunately 30 frame per 
 second can't catch it. Everything looks nice.
 I will try to explain again. In compare with kernel up to 2.6.27 (because I 
 used Ubuntu, Mandriva), 2.6.33 looks:more brighter, may be more contrast, 
 especially white, it is definitely more brighter although I stated xgamma 
 0.75. But biggest problem is that colors of the picture are not solid, stable 
 - they are somehow blinking or flickering. Sometime I think may be back 
 lights of LCD panel works different. And after hour or two eyes start notice 
 it, it is looks like colors is not constant, they always changes, little bit 
 but they are playing.
 It is very noticeable if I log into different TTY (not graphical) and just 
 start mc - it present for eyes.
 It is impossible to record, sorry.

 Thanks for help.


  I have tried OpenSuse 11.2, which is with newer kernel
 and it shows the same bad like Fedora 12. So I decided to
 shift on fedora, but unfortunately although Fedora 13 shows
 screen better - it is still not usable (actually screen
 picture on Fedora 12 was really awful). I have tried to
 compare video output on OpenSuse 11.1 and Fedora 13, all of
 the has the same, except of xdpyinfo: on suse it tells
 about 3 visuals ( number of visuals:    3), but on Fedora
 13 - 32 visuals. Fedora 12 got 72.
 
  Problems is not with fonts at all, problem with whole
 screen. Font, because it very contrast, is more noticeable.
 Also, of course I use freetype for the full hinting.
  Does it happened to all intel chipset, or to only
 i915GM, because I of course going to change my laptop, and
 it looks like I am not going to by a one with intel video.
 
  Thanks.
 
 
 
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Hi,

you can take a screenshot with gnome-screenshot. Just install the
program and run it from the command line (or you if have gnome, press
the PrtScr key).

Regards,
Pedro
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Re: [Intel-gfx] Query on Intel IGP and audio over displayport

2010-05-16 Thread Zhenyu Wang 
On 2010.05.15 03:46:35 +0200, Mikael Öhman wrote:
 Hello.
 I was wondering if it was possible to send audio over displayport using a Core
 i5 661 (Clarkdale) IGP.
 I have seen some charts indicating that the hardware actually supports it, but
 I'm not even sure if I should ask here or perhaps to some ALSA mailing list.
 On google I have only found things related to DP-HMDI with audio, which I
 don't need.

Yeah, we're looking into that actually. And current difficult is how to 
identify the DP sink device really has audio support. One is to use EDID
CEA ext 'basic audio' feature, and another I've tried is to parse DPCD
downstream device type. Unfortunately the DP monitors we have now don't
have sane indication for them all, so we don't have good hardware to verify
this (also tried windows driver but still failed with DP audio on it). 

Maybe we should just use EDID to determine whether enable audio or not.

 
 aplay only lists
 card 0: Intel [HDA Intel], device 0: ALC889 Analog [ALC889 Analog]
 card 0: Intel [HDA Intel], device 1: ALC889 Digital [ALC889 Digital]
 card 0: Intel [HDA Intel], device 3: INTEL HDMI 0 [INTEL HDMI 0]
 card 0: Intel [HDA Intel], device 7: INTEL HDMI 1 [INTEL HDMI 1]
 and naturally I've tried them all, with no sound.
 
 I'm using Debian unstable, and xserver-xorg-video-intel 2.11  (everything else
 also uptodate with Sid if that matters.)
 
 

You may try to force 'has_audio' to true in intel_dp.c, and try with HDA
HDMI codec. Let me know if that'll work for you, and what's your monitor model?

-- 
Open Source Technology Center, Intel ltd.

$gpg --keyserver wwwkeys.pgp.net --recv-keys 4D781827


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