Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
Xorg screen dimming
View unanswered posts
View posts from last 24 hours
View posts from last 7 days

 
Reply to topic    Gentoo Forums Forum Index Desktop Environments
View previous topic :: View next topic  
Author Message
TheLexx
Tux's lil' helper
Tux's lil' helper


Joined: 04 Dec 2005
Posts: 137
Location: Austin Tx

PostPosted: Sat Dec 29, 2012 2:57 am    Post subject: Xorg screen dimming Reply with quote

I am having a problem with my video becoming dim. I am using xorg-server v1.12.2 . The problem happens when I use ctrl-alt-function to switch between text displays and the running X server. When I return to the X server, the brightness of my screen is reduced by about half, making it hard to read. The same problem happens if I start a game that uses SDK. The screen goes dim as soon at the program starts.

Once the video goes dim, switching back and forth with ctrl-alt-function does not fix the problem. The only way I have to fix it is to close my desktop (enlightenment) (thereby shutting down X), and then restarting the desktop with startx. I also found that programs such as games that use SDK also cause the dimming.

The problem only occurs on my computer with ATI mb-video. If I move the hard drive to a different computer with a pci-e video card, there is no problem. Nor do I have a problem with the mb-video computer when I use an old (over 2 years) X server.

I posted the complete /var/log/Xorg.0.log at http://pastebin.com/35X42Axp .

The only new information that is added when I ctrl-alt-function is a single line ...

[863887.601] (II) VESA(0): Setting up VESA Mode 0x118 (1024x768)


Any ideas?
Back to top
View user's profile Send private message
chithanh
Developer
Developer


Joined: 05 Aug 2006
Posts: 2158
Location: Berlin, Germany

PostPosted: Mon Dec 31, 2012 6:07 pm    Post subject: Reply with quote

Why do you use such an old kernel, and the vesa driver instead of xf86-video-r128?
Back to top
View user's profile Send private message
TheLexx
Tux's lil' helper
Tux's lil' helper


Joined: 04 Dec 2005
Posts: 137
Location: Austin Tx

PostPosted: Tue Jan 01, 2013 5:21 pm    Post subject: Reply with quote

chithanh wrote:
Why do you use such an old kernel, and the vesa driver instead of xf86-video-r128?


Since I do not have any new hardware, I would prefer to use a "long term stable" kernel. I am also writing my own "devfs rules" rather than using the auto created ones. Once I clear up some things with my "devfs rules" I will switch to a newer "long term stable" kernel.

I tried using the xf86-video-r128 driver, but there was some sort of bug where it would not work with the mobo-video. The driver got into some sort of infinite loop where it kept trying and failing at the same thing over and over. When I used an older version of Gentoo 2010/2008(I don't remember when) it did not even attempt to load the r128 driver, so I switched to driver I had used before. I'm not sure if I have a log, from the r128 bug.
Back to top
View user's profile Send private message
chithanh
Developer
Developer


Joined: 05 Aug 2006
Posts: 2158
Location: Berlin, Germany

PostPosted: Tue Jan 01, 2013 5:33 pm    Post subject: Reply with quote

If I had to guess, I would say that it is a combination of kernel, xorg-server, and xf86-video-vesa/r128 issues. Especially if you use vesafb or atyfb (can be checked by running "cat /proc/fb").

I would start with disabling any fb drivers first, and then upgrading your kernel.
Back to top
View user's profile Send private message
TheLexx
Tux's lil' helper
Tux's lil' helper


Joined: 04 Dec 2005
Posts: 137
Location: Austin Tx

PostPosted: Tue Jan 01, 2013 7:13 pm    Post subject: Reply with quote

[quote="chithanh"]If I had to guess, I would say that it is a combination of kernel, xorg-server, and xf86-video-vesa/r128 issues. Especially if you use vesafb or atyfb (can be checked by running "cat /proc/fb").

I would start with disabling any fb drivers first, and then upgrading your kernel.[/quote]

Thanks, I think i will try to resolve this using the xorg mailing list.
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index Desktop Environments All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum