[Bug 28402] random radeon/kms/drm related freezes with kernel 2.6.34

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https://bugs.freedesktop.org/show_bug.cgi?id=28402

--- Comment #77 from Da Fox <da_fox@xxxxxxxxxxxxxxxxx> 2010-09-21 11:26:57 PDT ---
(In reply to comment #73)
> (In reply to comment #71)
> > Did you set the agpmode module parameter for radeon or are you getting 4x setup
> > automatically? If the later I wonder why I get 1x automatically.
> I get AGP 1x as default as well. I changed it with the kernel parameter to 4x
> and it seems to work as good as the old setting.

I also set radeon.agpmode=4 on the kernel commandline in grub.conf. I don't
know what the default is, I could test it if it's important. But agpmode=4 has
works with the older kernels, so I don't think that is the issue



(In reply to comment #74)
> (In reply to comment #72)
> > (In reply to comment #71)
> > > [drm] AGP mode requested: 1
> > 
> > [...]
> > 
> > > [...] I wonder why I get 1x automatically.
> > 
> > The line above means you have (the equivalent of) radeon.agpmode=1 somewhere,
> > either on the kernel command line or maybe in /etc/modprobe.d/ . Without an
> > explicit option, the default is determined by the BIOS and can sometimes be
> > tweaked in the BIOS setup.
> 
> It does not seem so:
> 
> shambhala:~> grep -r agpmode /etc 
> shambhala:~#1> grep -r agpmode /boot
> shambhala:~#1>
That is odd, grep -r on /boot should match at least System.map:
~ # grep -r agpmode /boot/
/boot/System.map:c15a506d r __param_str_agpmode
/boot/System.map:c1707b90 r __param_agpmode
/boot/System.map:c173fcc0 d radeon_agpmode_quirk_list
/boot/System.map:c17ec984 B radeon_agpmode
/boot/grub/grub.conf:kernel (hd0,5)/boot/vmlinuz ro root=/dev/sda6 quiet
splash=silent,theme:gerabellum CONSOLE=/dev/tty1
resume2=file:/dev/sda6:0x103130 radeon.agpmode=4 drm_kms_helper.poll=0
grep: warning: /boot/boot: recursive directory loop

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