Re: SGI O2 kernel fb driver vs Xserver

[Андрей Рандрианасулу]

-----Original Message-----
From: Андрей Рандрианасулу<randrianasulu at mail.ru>
To: xorg at lists.freedesktop.org
Date: Sun, 08 Mar 2009 15:00:32 +0300
Subject: SGI O2 kernel fb driver vs Xserver

> Hi list!
> 
> I have SGI O2 workstation, and gentoo Linux distro 
> installed in root-on-NFS mode. Kernel - self-compiled 2.6.29-rc5-0300 (with gcc-4.3.3), system was mostly recompiled with glibc-2.9, gcc 4.3.3, binutils 2.19.1. Console apps works fine, in framebuffer mode (1024x768-24 at 75, allocation of 4mb RAM was defined  at compile time).
> 
> But xserver (1.5.3 + gentoo patches) gives me error:
> 
> (EE) FBDEV(0): FBIOPUT_VSCREENINFO succeeded but modified mode                  
> (EE) FBDEV(0): mode initialization failed
> 
> I think this msg comes from hw/xfree86/fbdevhw/fbdevhw.c and was added in late 2006
> 
> commit f6815cb68b0f6698497348fc6e4214dacef33b95
> Author: Michel DÃ?nzer <michel at tungstengraphics.com>
> Date:   Sat Dec 30 10:18:28 2006 +0100
> 
>     fbdevhw: Consolidate modeset ioctl calling, report failure if it modifies mo
> de.
> 
> Google points me at https://bugzilla.novell.com/show_bug.cgi?id=285523 , i'm in process of rebuilding xserver (just 1.5.3, without gentoo-specific patches) with debug set to 1. If i run into same kind of bug - it should be fixed on kernel (fb driver) side?
> 
> i'll open freedesktop.org bug with additional info, when compilation finishes ... 
> (at least some kernel fb drivers give very same error message - 
> http://www.mail-archive.com/debian-arm@lists.debian.org/msg09406.html)

small update - 

sgio2 xorg-server-1.5.3 # X

X.Org X Server 1.5.3
Release Date: 5 November 2008
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.29-rc6-00217-g823b387 mips64 
Current Operating System: Linux sgio2 2.6.29-rc6-00217-g823b387 #11 Tue Mar 3 13:52:25 GMT 2009 mips64
Build Date: 08 March 2009  01:06:00PM
 
        Before reporting problems, check http://wiki.x.org
        to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
        (++) from command line, (!!) notice, (II) informational,
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/usr/var/log/Xorg.0.log", Time: Sun Mar  8 17:38:05 2009
(==) Using config file: "/etc/X11/xorg.conf"
(EE) Failed to load module "summa" (module does not exist, 0)
fbdevHW: Init 0
fbdevHW: VerifyModes 0
fbdevHW: UseBuildinMode 0
fbdevHW: MapVidmem 0
fbdevHW: LinearOffset 0
fbdevHW: Save 0
fbdevHW: SetMode 0
xfree init mode:        25172   640 657 753 800   480 491 493 525
fbdev init mode:        39726   640 17 96 47   480 11 2 32   32 8:8:8
(EE) FBDEV(0): FBIOPUT_VSCREENINFO succeeded but modified mode
fbdev returned mode:    39726   640 18 96 46   480 12 2 31   32 8:8:8
(EE) FBDEV(0): mode initialization failed

Fatal server error:
AddScreen/ScreenInit failed for driver 0

fbdevHW: LeaveVT 0
fbdevHW: Restore 0

this was without monitor and without any video-related kernel options (defaulted to 640x480) - more proper logs a bit later (need reboot)