2.6.8-rc4-mm1 : radeon_monitor.c broken vs CONFIG_FB_MODE_HELPERS+ Hard freeze

[Eric Valette]

I tried 2.6.8-rc4-mm1 on my ASUS L3800C laptop (radeon 7500), defined 
CONFIG_FB_MODE_HELPERS and I have got a hard freeze when starting X and 
framebuffer console with a lot of yellow dot on the bottom screen. 
Suddently I hear the fan meaning the machine is dead

Trying to compile without CONFIG_FB_MODE_HELPERS set do not work because
drivers/video/aty/radeon_monitor.c unconditionnaly uses "vesa_modes" 
variable that depends on CONFIG_FB_MODE_HELPERS.

Defining vesa_modes unconditionnaly as it was previously does not help : 
machine freeze. Trying the pci=routeirq (as per 2.6.8-rc3-mm2)  make the 
machine to freeze immediately without even displaying something.

Due to compilation errors in 2.6.8-rc3-mm2, I did'nt tried it. 
2.6.8-rc3-mm1 was the best kernel even on this machine.

--
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  /  `                   	Eric Valette
 /--   __  o _.          	6 rue Paul Le Flem
(___, / (_(_(__         	35740 Pace

Tel: +33 (0)2 99 85 26 76	Fax: +33 (0)2 99 85 26 76
E-mail: eric.valette@xxxxxxx



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