nV News Forums

 
 

nV News Forums (http://www.nvnews.net/vbulletin/index.php)
-   NVIDIA Linux (http://www.nvnews.net/vbulletin/forumdisplay.php?f=14)
-   -   [BUG] 295.09 and 295.17 break X11 DPMS (http://www.nvnews.net/vbulletin/showthread.php?t=173609)

luceth 02-06-12 10:21 PM

[BUG] 295.09 and 295.17 break X11 DPMS
 
1 Attachment(s)
Bug report: X11 DPMS breaks in both of the recent 295 series NVIDIA Linux x86_64 binary drivers.

Steps to reproduce:
- Run "xset force dpms off" in a terminal
- OR wait until the gnome-settings-daemon idle timer shuts off the display

What should happen:
- The screen blanks, then the backlight turns off. Moving the cursor or typing on the keyboard wakes the screen again.

What actually happens:
- The screen blanks, but the backlight does not turn off. Sometimes, moving the cursor or typing wakes brings back the desktop. Often, however, a terminal switch is required to rescue the desktop.

Hardware:
- Macbook Air 3,2. GeForce 320M chipset, LVDS panel LCD

Software:
- Ubuntu 11.10 (Oneiric), fully up-to-date plus -proposed but otherwise stock.

Other notes:
- The 290.10 driver works fine
- The screen shuts off as expected if one issues the command "sudo vbetool dpms off" - however, a mode switch is always required to restore the X desktop.
- I'm using the apple_bl kernel module and "RegistryDwords" "EnableBrightnessControl=1" to enable backlight brightness control using the keyboard hotkeys. Brightness control still works fine - including at brightness 0, at which the backlight is fully off.

Please find attached a bug report log.

AaronP 02-08-12 12:12 PM

Re: [BUG] 295.09 and 295.17 break X11 DPMS
 
Thanks for reporting this. Does the problem go away if you add
Code:

Option "UseDPLib" "off"
to /etc/X11/xorg.conf?

luceth 02-09-12 01:04 AM

Re: [BUG] 295.09 and 295.17 break X11 DPMS
 
Yes, adding that line to xorg.conf solves the problem.

Thanks!

AaronP 02-09-12 10:52 AM

Re: [BUG] 295.09 and 295.17 break X11 DPMS
 
Thanks for testing that! I filed bug 938124.

luceth 02-13-12 02:28 PM

Re: [BUG] 295.09 and 295.17 break X11 DPMS
 
Still broken with 295.20.

oyvind 02-18-12 04:55 PM

Re: [BUG] 295.09 and 295.17 break X11 DPMS
 
Confirming this bug with 295.20, xserver 1.7.6 (Ubuntu Lucid x86-64), nvidia nvs 3100M, Dell E6510.

Backlight does not turn off when DPMS activates.

Option "UseDPLib" "off" causes screen to fail initialization (turns black with visible dark disturbances).

oyvind 02-18-12 05:17 PM

Re: [BUG] 295.09 and 295.17 break X11 DPMS
 
Quote:

Originally Posted by oyvind (Post 2529684)
Backlight does not turn off when DPMS activates.

Downgraded to 290.10 and now DPMS works fine.

oyvind 03-23-12 07:06 AM

Re: [BUG] 295.09 and 295.17 break X11 DPMS
 
Aww.. Looks like this is still a problem in 295.33 .. :(

oyvind 03-23-12 07:13 AM

Re: [BUG] 295.09 and 295.17 break X11 DPMS
 
Screen just blanks with:
$ xset dpms force off

(display backlight isn't turned off)

Some flickering occurs (where it looks like it turns completely off for a very short time) at first mouse/keyboard event, and then it's back on. No errors in logs. Option "UseDPLib" "off" causes black display (X server seems to start OK, but one cannot see much of it).

oyvind 04-11-12 09:29 AM

Re: [BUG] 295.09 and 295.17 break X11 DPMS
 
Hi nvidia, is this bug (938124 in your tracker) fixed in the 295.40 release ?

oyvind 04-11-12 01:53 PM

Re: [BUG] 295.09 and 295.17 break X11 DPMS
 
Quote:

Originally Posted by oyvind (Post 2544530)
Hi nvidia, is this bug (938124 in your tracker) fixed in the 295.40 release ?

After a quick test, I am able to answer my own question. It's still broken in 295.40.

oyvind 05-05-12 04:50 AM

Re: [BUG] 295.09 and 295.17 break X11 DPMS
 
1 Attachment(s)
Following up on the thread, this is still a problem in latest stable driver 295.49. Attaching updated bug report log.


All times are GMT -5. The time now is 01:20 AM.

Powered by vBulletin® Version 3.7.1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright 1998 - 2014, nV News.