SD wrote on Wednesday, May 19, 2010 8:32 AM: >>> From: Clemens Eisserer <linuxhippy at gmail.com> >>> Subject: Re: [Intel-gfx] Picture quality on laptop LCD with i915GM >>> chipset. To: "intel-gfx" <intel-gfx at 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. > > > > Dear All. > > At last, I found the problem - it is new kernel 33 and 34, I took > them from Fedora. > I put them to my OpenSuse 11.1 (27 kernel) and boot it up. > Picture of the screen became unusable. And it is not Xorg with its > drivers, because except of the kernel everything from OpenSuse 11.1 - > it is kernel. > I do not know how it works with other GPU (intel or nvidia), but mine > i915GM shows awful screen. > I know what is wrong with picture - colors of the pixels. They are > not static, they change. Little bit, but change. It became more > noticeable when I just reboot. For example white - it is white, but > it changes around white, and as color is brighter it is more > annoying.
Flickering? Does booting kernel with i915.powersave=0 work? > May be I am wrong about all of it, I for sure - I am not > going to use 33 and 34 kernel with i915GM. _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
