Hi Nvidia guys !
I have Alienware M17xR3 laptop with GTX 580m. To use the discrete video card I use Bumblebee project. At first I thought everything was ok. With optirun `program' everything worked higher FPS compared to to intel's one, but later on I found out there was a problem. The performance wasn't as I was expecting from this card, it was much worse. I started to search for the problem and finally I found it. The video card has 4 possible performance levels, but I could go max to 2. I never managed to make the card to go more than level two. I googled the problem and I found a lot of solutions, which unluckily didn't work for me. Some were supposed to disable powermizer but they didn't. Others were supposed to lock the performance at certain level, but for me it locked only for lv.1 and and 2. Third ones made the card to go all out, like `optirun nvidia-settings -q all', but it still didn't go beyond level 2. What ever I tried problem couldn't be solved. I'm sorry if I'm too descriptive, but I don't remember all things I did and tried. I hope this is not a problem for you, but I'm sure I tried everything I managed to find in your ex-forum. After 2 weeks of research I finally found something that brought hope. It was on your previous forum for linux support: [url]http://www.nvnews.net/vbulletin/showthread.php?t=177688[/url]. In this thread there is link to other thread where danix(from nvidia) says that the problem is the communication between the kernel ACPI and the BIOS. He gave another link where this problem can be worked around if we just exchange places of two functions in the DSDT table. I followed the instructions, but the result wasn't as I hoped. The problem remained and I managed to introduce a new one(I couldn't change brightness). Now I don't know what to do. The only thing that comes to my mind is to update my bios: My current one is:
Release Date: 10/13/2011
Runtime Size: 128 kB
ROM Size: 2560 kB
PCI is supported
BIOS is upgradeable
BIOS shadowing is allowed
Boot from CD is supported
Selectable boot is supported
EDD is supported
Japanese floppy for NEC 9800 1.2 MB is supported (int 13h)
Japanese floppy for Toshiba 1.2 MB is supported (int 13h)
5.25"/360 kB floppy services are supported (int 13h)
5.25"/1.2 MB floppy services are supported (int 13h)
3.5"/720 kB floppy services are supported (int 13h)
3.5"/2.88 MB floppy services are supported (int 13h)
8042 keyboard services are supported (int 9h)
CGA/mono video services are supported (int 10h)
ACPI is supported
USB legacy is supported
BIOS boot specification is supported
Targeted content distribution is supported
UEFI is supported
Firmware Revision: 1.1
The newest version is A12. In it’s fix description I can’t see anything that could fix the problem, but for the previous version A10(there is no A11) I see:
Change eDP ACPI ID to support updated NV-GTX2 adjust brightness.
I’m not sure if this is related to the blank screen problem as described in the thread for DSDT modification, but it sounds close.
I decided to wait with the BIOS upgrade after I receive some information and suggestions from you.
I’m attaching a bug report with this post. This report was generated like this without exiting the game:
On xterm window:
And starting the game.
P.S. I forgot to mention that I’m using the latest driver 310.14 for ubuntu x-swat repository.
P.S2. Sorry but for some reason I can’t find the button attach so I uploaded the file on my google drive. Here is the link: https://docs.google.com/open?id=0B4brJaD_AYiBLTBzSHJDY0l0S0U