Giuseppe Bilotta wrote:
> On Thu, 29 Sep 2005 05:01:15 +0800, Antonino A. Daplas wrote:
>
>> Giuseppe Bilotta wrote:
>>> Hello all,
>>>
>>> * I have thus tried the new nvidiafb driver, which seems to work ok,
>>> except for the minor detail that the display is extremely snowy.
>>> Attempts to change the timing options with fbset fail: fbset seems to
>>> accept the settings, no error message is given, but nothing is
>>> changed. The X nv driver select the correct timings, so I tried
>>> modeline2fb to make fbset use those, but still nothing changes.
>>>
>> What's the dmesg output?
>
> """
> nvidiafb: nVidia device/chipset 10DE0112
> nvidiafb: nVidia Corporation NV11 [GeForce2 Go]
> nvidiafb: EDID found from BUS2
> nvidiafb: CRTC 1 is currently programmed for DFP
> nvidiafb: Using DFP on CRTC 1
> Panel size is 1600 x 1200
> nvidiafb: MTRR set to ON
> Console: switching to colour frame buffer device 200x75
> nvidiafb: PCI nVidia NV11 framebuffer (32MB @ 0xE0000000)
> """
>
> (do you need more?)
>
>> What's fbset -i output?
>
> Right after modprobing nvidiafb:
>
> """
> mode "1600x1200-61"
> # D: 160.000 MHz, H: 75.758 kHz, V: 60.606 Hz
> geometry 1600 1200 1600 20889 8
> timings 6250 256 64 46 1 192 3
> accel true
> rgba 8/0,8/0,8/0,0/0
> endmode
>
> Frame buffer device information:
> Name : NV11
> Address : 0xe0000000
> Size : 33554432
> Type : PACKED PIXELS
> Visual : PSEUDOCOLOR
> XPanStep : 8
> YPanStep : 1
> YWrapStep : 0
> LineLength : 1600
> MMIO Address: 0xfc000000
> MMIO Size : 16777216
> Accelerator : Unknown (43)
> """
>
> After trying fbset "1600x1200":
>
> """
> mode "1600x1200-61"
> # D: 160.000 MHz, H: 75.758 kHz, V: 60.606 Hz
> geometry 1600 1200 1920 17408 8
> timings 6250 256 64 46 1 192 3
> accel true
> rgba 8/0,8/0,8/0,0/0
> endmode
>
> Frame buffer device information:
> Name : NV11
> Address : 0xe0000000
> Size : 33554432
> Type : PACKED PIXELS
> Visual : PSEUDOCOLOR
> XPanStep : 8
> YPanStep : 1
> YWrapStep : 0
> LineLength : 1920
> MMIO Address: 0xfc000000
> MMIO Size : 16777216
> Accelerator : Unknown (43)
> """
>
> The "1600x1200" mode is:
>
> """
> mode "1600x1200"
> geometry 1600 1200 1920 17467 8
> timings 6172 304 64 46 1 192 3
> hsync high
> vsync high
> endmode
> """
>
> So as you can see the problem is that the timings are NOT set by
> fbset. No error messages or anything.
>
>> Can you try doing fbset -accel false and see if it makes a difference?
>
> Nope, same thing. Also with modprobe nvidiafb noaccel=1.
>
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