xorg-x11-drv-ati for Fedora 10 fails to setup DRI for 3520x1600x32 screen, is this normal?
alexdeucher at gmail.com
Thu Feb 12 10:00:44 PST 2009
On Thu, Feb 12, 2009 at 12:25 PM, Alex Villacís Lasso
<a_villacis at palosanto.com> wrote:
> Alex Deucher escribió:
>> On Thu, Feb 12, 2009 at 11:59 AM, Alex Villacís Lasso
>> <a_villacis at palosanto.com> wrote:
>>> As you can see, my primary (and only) screen is using a resolution of
>>> 1440x1080, the maximum one it supports. But the DRI calculation is being
>>> done on 3520 x 1600. Is this the normal behavior of the X server and the
>>> radeon driver? I am not really sure, so I am asking here instead of
>>> filing a bug. Is there any directive on xorg.conf I can use to reduce
>>> the xrandr maximum so that it can fit within the DRI calculation for my
>> This is normal. We can't dynamically resize the desktop yet, so we
>> use the virtual parameter to pre-allocate a large enough buffer for
>> for the maximum desktop size requested. Use a smaller virtual line in
>> your xorg.conf.
> I have used the Virtual setting and it works (DRI is now enabled).
> However, I had no Virtual setting before, and the 1440x1080 mode was the
> biggest one configured in my xorg.conf :
> Section "Screen"
> Identifier "Screen0"
> Device "Videocard0"
> Monitor "Monitor0"
> # DefaultDepth 24
> SubSection "Display"
> Virtual 1440 1080
> Viewport 0 0
> Depth 24
> Modes "1440x1080" "1400x1050" "1440x1024" "1440x900"
> "1280x1024" "1280x960" "1280x800" "1152x864" "1152x768" "1024x768"
> "800x600" "640x480"
> The xorg.conf manpage states that the default for Virtual is supposed to
> accomodate all the screen modes defined. For my case, it should be set
> to 1440x1080, but chose those bogus values instead. Where did the
> xserver get those values from?
The driver tries to set sane default sizes, which don't always work out.
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