Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion. Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules. |
14th August 2013, 00:29 | #19841 | Link |
Registered User
Join Date: May 2011
Posts: 21
|
hi.
i read somewhere on this topic some problem with madVR and ati graphics drivers. this has been fixed? i want buy a laptop with i5 480m + hd5650m but after i read those comments about ati drivers i got scared. and if that driver issue is already fixed the hd5650m is a good gpu for madVR or is better to buy a laptop with nvidia gpu so i can have CUDA? have some urgency because i will buy a laptop in next days. thanks Last edited by psousa; 14th August 2013 at 04:00. |
14th August 2013, 02:51 | #19842 | Link | |
Registered User
Join Date: Dec 2012
Posts: 17
|
Quote:
Both test-pattern works as intended. I like the idea that only the letters are changing their colour in the new version. (the image looks so blue because my camera messed it up...) (your old version: http://s1.directupload.net/images/130814/tz7cn3be.png ) |
|
14th August 2013, 04:49 | #19843 | Link |
QB the Slayer
Join Date: Feb 2011
Location: Toronto
Posts: 697
|
Excellent work 6233638... Now I know for sure my LG is outputting in 4:2:2
Now with that knowledge, is there any settings in madVR that I need to set to make my image quality as high as possible? QB
__________________
|
14th August 2013, 05:32 | #19844 | Link | |
Registered User
Join Date: Jan 2009
Posts: 1,210
|
Quote:
I have a laptop with an ATI Mobility GPU 4570 from 2009 and built a desktop with an nvidia card and the difference in driver stability is clear. Just my 2 cents. |
|
14th August 2013, 06:23 | #19845 | Link |
Registered User
Join Date: Jun 2013
Posts: 32
|
one very stupid question, madshi. I have a 1366x768 monitor, and a fullhd tv. If i play fullhd movie (cpu decode), the cpu usage when i connect to fullhd tv will be lower than when i connect to the monitor, right? because i think cpu doesn't need to downscale image. thanks!
|
14th August 2013, 07:04 | #19846 | Link | |
Registered User
Join Date: Apr 2009
Posts: 1,019
|
Quote:
While displays may handle chroma slightly differently, on my Sony LCD Jinc 3 AR and Lanczos 3 AR look identical when it's in a mode that processes in 4:2:2 - and Bicubic 75 AR is likely going to look the same as well. You can still tell the difference between them and anything worse (e.g. Bilinear, SoftCubic) but the differences between chroma scaling algorithms are far smaller if your display is not showing 4:4:4. Here's some testing I did on this a while ago: http://forum.doom9.org/showpost.php?...ostcount=17361 |
|
14th August 2013, 11:56 | #19847 | Link | |
Registered User
Join Date: May 2011
Posts: 21
|
Quote:
thanks for the reply. the problems with ATI in your experience is with madVR in special or in general? i had some laptops and lot of desktop ati/amd gpu and never had much problem with drivers. i ask this because the laptop i will buy is used and can have a good deal with that laptop. im try to find laptops with similar performance nvidia gpu and the prices are much higher |
|
14th August 2013, 12:31 | #19848 | Link |
Kid for Today
Join Date: Aug 2004
Posts: 3,477
|
not workee as intended anymore here, you broke my bubble
I see 4:2:2 on HDMI if I don't enable PIP: but if I do(with a HD TV channel), I get this: It's a 2013 sammy TV and if others can confirm that this test pattern work as it's supposed to then I'm more or less SOL with J3AR chroma.. Enabling its game mode doesn't change anything and this new test pattern doesn't really match my experience as I don't see why they'd process SD DVB-T in 4:2:2 and HD DVB-T in 4:2:0...Maybe because its onboard processor can't handle that much data, though. I'll try the other HDMI inputs Last edited by leeperry; 14th August 2013 at 12:37. |
14th August 2013, 12:37 | #19849 | Link | |
QB the Slayer
Join Date: Feb 2011
Location: Toronto
Posts: 697
|
Quote:
Thanks, your insights and testing are always top shelf stuff QB
__________________
|
|
14th August 2013, 12:58 | #19850 | Link |
QB the Slayer
Join Date: Feb 2011
Location: Toronto
Posts: 697
|
Quote:
QB
__________________
|
14th August 2013, 13:00 | #19851 | Link | |
Registered User
Join Date: Apr 2012
Posts: 169
|
Quote:
For AMD, I'd say the biggest problem is to find a driver version that works for your setup, and it's not necessarily the newest one. So in my experience, it's pretty comparable to nVidia, I'm still using the 306.97 drivers for more stability. |
|
14th August 2013, 13:10 | #19852 | Link | |
Registered User
Join Date: Jan 2007
Posts: 530
|
Quote:
The late 12 series and the newer 13 series drivers on AMD are rock-solid with madVR. |
|
14th August 2013, 13:44 | #19853 | Link | |
Registered User
Join Date: Mar 2007
Posts: 934
|
Quote:
__________________
TV Setup: LG OLED55B7V; Onkyo TX-NR515; ODroid N2+; CoreElec 9.2.7 |
|
14th August 2013, 13:52 | #19854 | Link |
Registered Developer
Join Date: Mar 2010
Location: Hamburg/Germany
Posts: 10,347
|
Anecdotal evidence doesn't prove anything. In my personal experience, AMD/ATI has caused more issues with their drivers then NVIDIA, especially for HTPC usage. But then i also usually run recent hardware, which drivers are usually more optimized for. My HTPC has been running just perfectly with NVIDIA, while i had some minor issues with an AMD card i used for a few month, until NVIDIA released a new generation.
But does that prove that NVIDIA drivers are better? Probably not. All i know is that the HW decoder in AMDs cards is inferior to NVIDIA (both in speed and features, eg. even in latest generations a driver had to disable 4K decoding on AMD because it was broken), but if that matters for you is only something you can decide.
__________________
LAV Filters - open source ffmpeg based media splitter and decoders |
14th August 2013, 14:30 | #19855 | Link | |
Registered User
Join Date: Mar 2007
Posts: 934
|
Quote:
__________________
TV Setup: LG OLED55B7V; Onkyo TX-NR515; ODroid N2+; CoreElec 9.2.7 |
|
14th August 2013, 17:22 | #19856 | Link |
Registered User
Join Date: May 2011
Posts: 21
|
what i really want know is if CUDA from nvidia make lot of diference with madVR. the hd5650m have a decent performance for a laptop gpu (6700 points in 3dmark06),will not be good enought for madVR?
btw i only see 1080p movies and 720p series on a panasonic 46G20. as far i understand madVR will upscale the 720p series to 1080p right? |
14th August 2013, 18:55 | #19857 | Link |
Banned
Join Date: May 2012
Location: _Lies|Greed|Misery_
Posts: 114
|
Hi madshi!
I just watched a movie a few minutes with OSD on and found several times where for about 30 sec the max rendering time was about half the average rendering time. Never seen this before as far as I can remember. Is that normal or is it maybe a bug? |
14th August 2013, 20:15 | #19858 | Link | |
Kid for Today
Join Date: Aug 2004
Posts: 3,477
|
Quote:
But I didn't run any harcore A/B comparisons and being colorblind, I'm hopeless without a colorimeter. Maybe more people can testproof this pattern and once a consensus will have been found, madshi can add it to the first page |
|
14th August 2013, 20:27 | #19859 | Link | |
Registered User
Join Date: Apr 2009
Posts: 1,019
|
Quote:
I would expect chroma resolution to drop (if anything) when you enable PIP rather than improving. 4:2:0 will only appear very aliased when it's displayed natively. Most of these displays will only be processing in 4:2:0 (discarding chroma resolution) and then upsampling it - the issue is that most displays do a poor job of the upsampling, and some sources (e.g. computer graphics/games) are 4:4:4 native. For example: http://www.avsforum.com/t/1162100/th...#post_20822997 Processing in 4:2:0 results in very soft, blurred chroma, not aliased chroma. |
|
14th August 2013, 23:02 | #19860 | Link |
Kid for Today
Join Date: Aug 2004
Posts: 3,477
|
Well, I was hoping for a firmware bug considering that your previous test pattern appeared fine
Apparently 4:2:0 is really fubar: http://www.ntt-electronics.com/en/pr...deo-codec.html I can see how 4:4:4 might be considered overkill for displaying 4:2:0 YV12 sources and why some(many?) TV sets save money by processing in 4:2:2: http://www.5dfilmmaking.com/tut_444.htm PS: OK, case closed: whatever I do in "movie" mode, red blue and magenta never look as sharp as the others. Actually, the darn thing can go 4:4:4(even with PIP enabled) if I rename the input to "PC" but then no more BFI & REC.709 gamut.. Last edited by leeperry; 16th August 2013 at 15:20. |
Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
|
|