Mainconcept MPEG2 on newer card = black picture

[wlibero]

Hi,

hoping this is the right forum...:

til last week I had an HD 3850 on XP-32, catalyst 10.10. I've always used the Mainconcept MPEG-2 decoder (with VMR9). It uses DXVA. Everything fine. I'd like to stick with this decoder if possible.

Now I have an HD 6850, catalyst 10.12., but using the same decoder, only a black picture is shown. The machine has been reinstalled (still XP-32). Other decoders do show a picture but they are not my first choice.

I know about DirectShow, filter graphs, etc. pretty well (I'm a programmer for some years BTW), and we don't have to discuss about installing latest drivers etc, so I just want to know if this is a "known issue". I didn't find solutions to this problem.

Well, what's different to before? Only the card and the driver; which is both still ATI. That would mean there is a limitation on new cards/drivers? I have no other explanation.

If I use it in MPC-HC, it shows "playing (DXVA)", so it does make use of DXVA, but the pictures stays black. Also with VMR7. Same in Graphedit or others (AltDVB, ProgDVB, DVBViewer...). Audio plays well and there is no error message.

Any clue? Thanks for reading, and sorry if I'm wrong here.

[(*|*)]

i have same black screen problem with 1.4.2499.0, but screen is always black when i play any video with any decoder.
win xp sp3 32bit
mpc-hc 1.4.2499.0
geforce fx 5900xt (174.74)
vmr9 r-less, surface 3d, resizer: bilinear (ps 2.0)

[wlibero]

I figured out, if I disable hardware acceleration in the decoder settings dialog, it works. However, that's not a solution.

I also tested it on Win7-64: Same problem. Same black picture.

I tried to figure out the cause, but I failed. I've used DXVAchecker and everything seems to be fine. Everything works without an error message, but with a black output. I don't get it. I've debugged using the DX Debug Runtime (didn't know what else to try) to no avail.

I can't live with it just because of an upgrade from HD 3850 to HD 6850.

[(*|*)]

I figured out, if I disable hardware acceleration in the decoder settings dialog, it works. However, that's not a solution.

I also tested it on Win7-64: Same problem. Same black picture.

I tried to figure out the cause, but I failed. I've used DXVAchecker and everything seems to be fine. Everything works without an error message, but with a black output. I don't get it. I've debugged using the DX Debug Runtime (didn't know what else to try) to no avail.

I can't live with it just because of an upgrade from HD 3850 to HD 6850.

check options -> misc -> reset color controls when you play a video file.

[wlibero]

Thx, but it does not solve the problem.

[(*|*)]

Thx, but it does not solve the problem.

yes, i don't know how to fix it. :mad:

[wlibero]

yes, i don't know how to fix it. :mad:Are you angry about me or about the problem? I just wanted to give a feedback, so everything's fine. :)

[(*|*)]

Are you angry about me or about the problem? I just wanted to give a feedback, so everything's fine. :)

of course about problem.

[setarip_old]

@wlibero

Hi!

Have you seen the following, from the AMD webpage at:

http://support.amd.com/us/kbarticles/Pages/AMDCatalyst1012ReleaseNotes.aspx

Note:
Driver compatibility for AMD Radeon HD 6800 Series is currently available for Windows Vista® and Windows 7® only.

[wlibero]

@wlibero

Hi!

Have you seen the following, from the AMD webpage at:

http://support.amd.com/us/kbarticles/Pages/AMDCatalyst1012ReleaseNotes.aspx

Hi, ha-ha, that's funny. No XP support yet. No, I didn't read that. I always read the release notes but only about the resolved issues and new features. Anyway, the problem of this thread also exists in Win7. But thanks for the hint!

(BTW, if you go on http://support.amd.com/us/gpudownload/Pages/index.aspx and select my card and my OS, AMD offers this driver. Anyway, apart from the problem mentioned, which is not OS related, it works well also on XP.)