[Openchrome-devel] [Bug 91966] No signal to monitor with X and openchrome using VX855 chipset graphics

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Dec 29 19:10:20 PST 2015


--- Comment #107 from Kevin Brace <kevinbrace at gmx.com> ---
(In reply to Christopher from comment #99)

Hi Christopher,

> Got the cable. Highway Robbery pricing at Best Buy, but that's Best Buy for
> you... ugh.
> *ahem*
> More info about the up-till-now, then some test results. Attachments are on
> their way as well :)
> Up till now I have been using a DVI-to-VGA adapter, exactly like this one
> --> http://www.ebay.com/itm/252221518771
> I have two of those, and two other different ones that work exactly the
> same. I use that, and the first VGA cable my hand finds, and that gets the
> client to a screen ;)
> With the aforementioned $22 (there ought to be a law!) DVI-D Single Link
> cable from Best Buy, I get about the same behavior -- it's fine in text
> mode, graphics I get a single nonblinking cursor.

Sorry for you having to pay $22 for a DVI single link cable at Best Buy.

> That's with default video.
> Modesetting driver is same result, except that the cursor starts blinking
> when I get back to text mode.
> OpenChrome driver is about to be tested, along with whatever the default
> driver is.
> I will report back further information as soon as I have it... and there
> WILL be logs ;)

I spent about 2 hours so far in the car today analyzing why the DDC (I2C bus)
is not working well.
So far I have not found a solution or something for you to try, but I will keep
analyzing the source code of the portion that deals with DDC.


Kevin Brace

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