[Intel-gfx] PCI configuration space of the VGA controller and laptop LCD picture quality.
Dear All. I still can't figure out why Fedora (13,14,15) shows LCD picture much worse then opensuse 11.1. So my next question - can it be because of different PCI configuration space of my 00:02.0 VGA compatible controller: Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller (rev 04). lspci - gives me different outputs on fedora and opensuse although both of them are installed on the same laptop, on the same HD and use the same hardware. As long as I still want to use Fedora on my laptop I would like to ask - can picture quality be spoiled by different PCI configuration? Thanks in advance. ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
Re: [Intel-gfx] PCI configuration space of the VGA controller and laptop LCD picture quality.
On 2011/01/13 11:58 (GMT-0800) SD composed: I still can't figure out why Fedora (13,14,15) shows LCD picture much worse then opensuse 11.1. What does worse mean? Most people who see worse are actually complaining about fonts, and in most cases even then they don't define what is worse about the fonts. Can you upload screenshots of both so people can see what worse means? That said, Fedora sets some system wide variables that affect X quality/behavior in /etc/X11/Xresources: Xft.dpi Xft.hintstyle Xft.hinting openSUSE doesn't do that. If you comment those away in Fedora, or match the Xft.dpi number to your LCD's actual DPI, you may find the difference is reduced or disappears, particularly if actual DPI varies more than nominally from the Xft.dpi setting. OTOH, they may produce little or no improvement if you've set your DTE to force DPI or tweaked its font smoothing settings. If you need to comment further, also specify which DTE you use, as that can matter as well in future responses. As long as I still want to use Fedora on my laptop I would like to ask - can picture quality be spoiled by different PCI configuration? I highly doubt it, other than if it's wrong there's no picture to assess the quality of. -- How much better to get wisdom than gold, to choose understanding rather than silver. Proverbs 16:16 NKJV Team OS/2 ** Reg. Linux User #211409 Felix Miata *** http://fm.no-ip.com/ ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
Re: [Intel-gfx] KMS in GMA500 ?
Hi, There is some limited kms mode-setting support in linux-2.6.38, however only mode setting and now acceleration or whatever. Unfourtunatlly there are only closed-source drivers for your GPU, precompiled for some selected distributions. - Clemens 2011/1/12 sanjay anvekar sanjayanve...@yahoo.com: Hello, I have Intel GMA500 board with integrated graphics.Display of 800x480 resolution is interfaced to the board.I would like to enable Kernel Mode Setting to achieve this resolution. So please can anybody let me know which Linux Kernel option need to be selected in order to achieve this. I am using Kernel 2.6.36.2. Thanks Best Regards, Sanjay ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
Re: [Intel-gfx] PCI configuration space of the VGA controller and laptop LCD picture quality.
--- On Thu, 1/13/11, Felix Miata mrma...@earthlink.net wrote: From: Felix Miata mrma...@earthlink.net Subject: Re: [Intel-gfx] PCI configuration space of the VGA controller and laptop LCD picture quality. To: intel-gfx@lists.freedesktop.org Date: Thursday, January 13, 2011, 11:29 PM On 2011/01/13 11:58 (GMT-0800) SD composed: I still can't figure out why Fedora (13,14,15) shows LCD picture much worse then opensuse 11.1. What does worse mean? Most people who see worse are actually complaining about fonts, and in most cases even then they don't define what is worse about the fonts. Can you upload screenshots of both so people can see what worse means? That said, Fedora sets some system wide variables that affect X quality/behavior in /etc/X11/Xresources: Xft.dpi Xft.hintstyle Xft.hinting openSUSE doesn't do that. If you comment those away in Fedora, or match the Xft.dpi number to your LCD's actual DPI, you may find the difference is reduced or disappears, particularly if actual DPI varies more than nominally from the Xft.dpi setting. OTOH, they may produce little or no improvement if you've set your DTE to force DPI or tweaked its font smoothing settings. If you need to comment further, also specify which DTE you use, as that can matter as well in future responses. As long as I still want to use Fedora on my laptop I would like to ask - can picture quality be spoiled by different PCI configuration? I highly doubt it, other than if it's wrong there's no picture to assess the quality of. -- How much better to get wisdom than gold, to choose understanding rather than silver. Proverbs 16:16 NKJV Team OS/2 ** Reg. Linux User #211409 Felix Miata *** http://fm.no-ip.com/ ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx Thanks for the answer and questions. Picture quality I meant is what I think after some bad experience with Fedora 13, 14 and now rawhide 15 it is backlight, it is not solid or smooth like on opensuse 11.1. On all fedora it looks like backlight flickers, and it doesn't make picture solid (smooth). I check everything and compare everything I can. It is not font, or DPI because both OS on the same laptop and I made exactly the same settings. But after less then an hour on Fedora my eyes start aching. I start to suspect backlight frequency or something else, because first that one can notice is higher screen brightness and therefor colors are brighter also. I did the same xgamma settings, backlight level is also the same. Only thing is different, which I can see myself (and find myself) is PCI configuration. Latter I will send here picture of screen with different colors from opensuse and fedora, also video PCI memory dump ___ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx