ati xrandr: cannot find crtc for output DVI-0

[Jan Dittmer]

Alex Deucher wrote:
> On 8/27/07, Alex Deucher <alexdeucher at gmail.com> wrote:
>> On 8/27/07, Jan Dittmer <jdi at l4x.org> wrote:
>>> A serious problem remains: The screen attached to the DVI output
>>> is a lot brighter. All the aliased stuff around glyphs gets white so that
>>> the screen is barely readable. All bright colors look white. Is this a problem
>>> with some gamma processing? (I checked the monitor settings more than twice,
>>> it's not correctable by lowering it's brightness or contrast)
>> Hmmm... I haven't seen this myself, but I does remind me of a similar
>> problem we had years ago, that may have resurfaced with all the
>> refactoring of the driver.  I'll see if I can dig up what the solution
>> was.
> 
> I think perhaps disp_merge_cntl or disp2_merge_cntl is programmed
> wrong, (although I can't see how).  Can you dump the values of those
> regs using radeontool from git?
> 
> e.g.,
> radeontool regmatch DISP_MERGE_CNTL
> radeontool regmatch DISP2_MERGE_CNTL

Hrm, using the most probable google hit:

git clone git://anongit.freedesktop.org/~airlied/radeontool/

I get
$ sudo ./radeontool regmatch DISP_MERGE_CNTL
$ sudo ./radeontool regmatch DISP2_MERGE_CNTL
$
ie. no output.

Jan