[arch-general] New nvidia driver - video mode not recognized - remove vga= from kernel line?

[Norbert Zeh]

I do have the /etc/modprobe.d/nouveau_blacklist.conf file on my machine,
too, but I remember that the nouveau kernel driver did get loaded until
I added !nouveau to the MODULES list in my rc.conf.  So

1)  Can you do an "lsmod | grep nouveau" to see whether nouveau maybe
    still gets loaded.  (If so, it might be interesting to learn why
    even though the above file is present.)

2)  If the answer to (1) is yes, try adding !nouveau to the MODULES list
    in rc.conf and see whether this fixes your problem.

Of course, I'm just guessing here.

Cheers,
Norbert

David C. Rankin [2010.10.28 1803 -0500]:
> On 10/28/2010 04:38 AM, Dan Vrátil wrote:
> > Hello David,
> > 
> > this cannot be related to nvidia drivers because of two things: 1) the
> > drivers are loaded after the kernel boots and 2) the proprietary nvidia
> > drivers do not support KMS (and according to nvidia they are not going
> > too in near future).
> > 
> > Make sure, you have nouveau blacklisted
> > (/etc/modprobe.d/nouveau_blacklist.conf) because you don't need it when
> > you use the proprietary drivers and last time I tested it, it had
> > problems with the vga boot option.
> > 
> > Dan
> 
> Thank you Heika, Attila, Dan,
> 
> 	The mystery still remains. I didn't do it, but noveau was already blacklisted
> on my box:
> 
> [17:32 archangel:/etc/modprobe.d] # l
> total 32
> drwxr-xr-x  2 root root  4096 Oct 19 19:34 .
> drwxr-xr-x 96 root root 12288 Oct 28 00:49 ..
> -rw-r--r--  1 root root   704 Jun 28 08:45 framebuffer_blacklist.conf
> -rw-r--r--  1 root root    55 Jun  7  2009 modprobe.conf
> -rw-r--r--  1 root root    18 Oct 18 09:28 nouveau_blacklist.conf
> -rw-r--r--  1 root root   196 Sep 18 17:58 usb-load-ehci-first.conf
> [17:32 archangel:/etc/modprobe.d] # cat nouveau_blacklist.conf
> blacklist nouveau
> 
> 	Also, on the (press enter or scan issue), I'm sure you are 100% correct Heiko,
> but no matter whether I press enter or issue scan with this 8800GT, the list of
> modes returned is the same. Also, both enter or scan take the same amount of
> time to complete -- at least on this box.
> 
> 	If the proprietary driver doesn't support KMS and isn't going to for a while,
> then I wonder what changed to make my normal kernel line (that I've used for
> years) suddenly start causing the invalid mode error? The kernel line is:
> 
> kernel /vmlinuz26 root=/dev/mapper/nvidia_baaccajap5 ro vga=0x31a
> 
> 	As a test, I booted LTS with the vga=0x31a and it booted fine and into the
> correct framebuffer. So this is looking more and more kernel related.
> 
> 	I have also booted Arch without vga= in the kernel line and I do NOT get the
> invalid mode prompt, but then I'm left with a 640x480 framebuffer. That looks
> terrible on a 23" display.
> 
> 	Oddly, when I boot with vga= and get the error, somehow after the timeout, I
> get the right framebuffer.
> 
> 	I'm stumped. Any idea on "what could have changed?" that could be causing the
> mode error?
> 
> -- 
> David C. Rankin, J.D.,P.E.
> Rankin Law Firm, PLLC
> 510 Ochiltree Street
> Nacogdoches, Texas 75961
> Telephone: (936) 715-9333
> Facsimile: (936) 715-9339
> www.rankinlawfirm.com


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