Re: Re: New radeonfb, mostly untested

[Benjamin Herrenschmidt <benh@kernel.crashing.org>]

> It  fails only  if  compiled  as module. I  see  that fb_find_mode  (and
> my_atoi) are marked  as __init. Maybe they get discarded  after boot and
> when  radeonfb module  tries  to call  them it  ends  up in  deallocated
> memory...

Exactly, they should definitely not be marked __init

> When booting  with radeonfb  compiled in  the screen  is shifted  on the
> left. At 1024x768 it is shifted by 2 characters:
> 
> hStart = 1048, hEnd = 1184, hTotal = 1344
> vStart = 771, vEnd = 777, vTotal = 806
> h_total_disp = 0x7f00a7 hsync_strt_wid = 0x910422
> v_total_disp = 0x2ff0325 vsync_strt_wid = 0x860302
> pixclock = 15384
> freq = 6500
> post div = 0x4
> fb_div = 0x74
> ppll_div_3 = 0x20074
> Console: switching to colour frame buffer device 128x48
> 
> At 1280x768  (native res of my  LCD - now it  works) it is shifted  by 3
> chars:
> 
>     Detailed Monitor Information
>        108 MHz 1280 1328 1440 1688 1024 1025 1028 1066 +HSync +VSync
> 
>        Serial No     :  HD  001699
>        Monitor Name  : Philips 170S4
>        HorizSync     : 30-82 KHz
>        VertRefresh   : 56-76 Hz
>        Max Pixelclock: 140 MHz
>  ========================================
> ATI Radeon NE 9700 R300 SDR SGRAM 128 MB
> hStart = 1359, hEnd = 1496, hTotal = 1713
> vStart = 1025, vEnd = 1028, vTotal = 1060
> h_total_disp = 0x9f00d5 hsync_strt_wid = 0x910559
> v_total_disp = 0x3ff0423 vsync_strt_wid = 0x830400
> pixclock = 9179
> freq = 10894
> post div = 0x2
> fb_div = 0x61
> ppll_div_3 = 0x10061
> Console: switching to colour frame buffer device 160x64
> 
> This is very  annoying because I must re-center the  screen every time I
> switch from  console to X and  viceversa. I had the same  issue with the
> old driver + i2c code.
> 
> That doesn't happen with the standard modedb. At 1024x768 with
> ignore_edid it's ok. At 1280x1024 it falls back to 800x600.

Can you try tweaking the hSync and vSync polarity ?

Ben.
 



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