madshi bug tracker - madVR
View Issue Details
0000647madVRbugpublic2020-06-26 19:292020-07-31 22:32
B1gD4ddy 
madshi 
immediatemajoralways
assignedopen 
0.92.17
MPC-BE.1.5.4.4969.x64
-
-
<select>
<select>
<select>
<select>
all modes
NVidia
rtx 2080
issue is with 45x.xx branch. last working is 446.14.
0000647: mpc be madvr hdr passthrough does not work anymore
since nvidia changed the hdr code and/or hdr handling in 45x.xx driver branch madvr hdr passthrough does not work anymore.

instead of passthroughing hdr to the display madvr activates windows hdr and sends sdr to display.
install 45x.xx.
install madvr.
activate hdr passthrough to display in madvr.
install mpc be and set madvr as renderer.
start a hdr mkv for example.
windows hdr will be activated and sdr movie will appear.
-
No tags attached.
Issue History
2020-06-26 19:29B1gD4ddyNew Issue
2020-06-26 23:47madshiAssigned To => madshi
2020-06-26 23:47madshiStatusnew => assigned
2020-07-09 22:59B1gD4ddyNote Added: 0002711
2020-07-19 12:19CineasteNote Added: 0002714
2020-07-19 15:19CineasteNote Edited: 0002714bug_revision_view_page.php?bugnote_id=2714#r646
2020-07-27 15:32zeus0rNote Added: 0002718
2020-07-27 16:10B1gD4ddyNote Added: 0002719
2020-07-27 17:42B1gD4ddyNote Edited: 0002719bug_revision_view_page.php?bugnote_id=2719#r648
2020-07-27 17:42B1gD4ddyNote Edited: 0002719bug_revision_view_page.php?bugnote_id=2719#r649
2020-07-27 18:02B1gD4ddyNote Added: 0002720
2020-07-27 18:10B1gD4ddyNote Edited: 0002720bug_revision_view_page.php?bugnote_id=2720#r651
2020-07-27 18:10B1gD4ddyNote Edited: 0002720bug_revision_view_page.php?bugnote_id=2720#r652
2020-07-28 20:16zeus0rNote Added: 0002721
2020-07-28 20:34B1gD4ddyNote Added: 0002722
2020-07-28 20:36B1gD4ddyNote Edited: 0002722bug_revision_view_page.php?bugnote_id=2722#r654
2020-07-30 06:59CineasteNote Added: 0002724
2020-07-31 22:32cccleanerNote Added: 0002725

Notes
(0002711)
B1gD4ddy   
2020-07-09 22:59   
problem is in new 451.67 whql still present.
(0002714)
Cineaste   
2020-07-19 12:19   
(edited on: 2020-07-19 15:19)
It appears I am now at a point where I have to update the driver purely to keep on top of my games. madshi, do you know what they did to the API? Is it entirely new code?

(0002718)
zeus0r   
2020-07-27 15:32   
same problem here!

current "solution":

when activating win 10 desktop HDR madVR uses OS HDR instead of NV HDR and everything is fine. is there any way to tell madVR to always use OS HDR without enabling/disabling it all the time?
(0002719)
B1gD4ddy   
2020-07-27 16:10   
(edited on: 2020-07-27 17:42)
ehm nope.

not same problem there since when you do it right like i described and like how everybody uses it currently madvr since 45x.xx always autoactivates os hdr instead of nv hdr and the movie is still washed out sdr.

what you call the solution and are asking for is the damn problem we have.

madvr hdr passthrough is build so nobody needs the disgusting os hdr and for auto activating/deactivating nv hdr at start/close of movie.

btw @ madshi: did you look into that? can you change something and make hdr passthrough work again with 45x.xx?

(0002720)
B1gD4ddy   
2020-07-27 18:02   
(edited on: 2020-07-27 18:10)
this would be very nice because as we speak people research on dolby vision mkvs.

makemkv for example just added the new matroska 1.6.0 specs for storing dv metadata in mkv.

dolby vision mkvs already work when build with makemkv 1.15.2 and played back by a modified exoplayer apk in kodi!

having working madvr hdr and later on dolby viosion passthrough with 45x.xx+ would be gold.

please tell us the current status.

(0002721)
zeus0r   
2020-07-28 20:16   
ok sorry, that's weird B1gD4ddy.

i just tested it with the latest nvidia drivers (gtx1660 super):

win10 HDR enabled: madvr uses OS HDR & fullscreen windowed and everything works perfectly fine

win10 HDR disabled: madvr uses NV HDR & fullscreen exclusive and HDR is washed out although my display goes to HDR mode
(0002722)
B1gD4ddy   
2020-07-28 20:34   
(edited on: 2020-07-28 20:36)
yes, when you manually activate win hdr and then start the movie everything works fine.

but when win hdr is turned off and you start the movie and let madvr turn on hdr on its own then it turns on win hdr automatically but movie is still washed out sdr.

but manually activating win hdr everytime before you start a movie is no solution, since we use the madvr hdr passthrough feature for the very reason that it automatically turns on nv hdr when you start the movie and it turns off nv hdr automatically when you close the player. win hdr had never to be touched. it always worked that way until nvidia released 45x.xx.

(0002724)
Cineaste   
2020-07-30 06:59   
Whilst we're waiting I have set up an AutoHotKey that toggles Windows HDR on/off by pressing a button. That button is mapped to a key on my remote so that all I have to do is use my Logitech Harmony (start Kodi > press button to toggle HDR > play movie > press button to automatically turn off HDR).

Not as convenient as madVR auto-switching but much better than manually having to fiddle with settings every time.
(0002725)
cccleaner   
2020-07-31 22:32   
can confirm this behavior too.

I hope madshi can find some time beside his big hardware project to keep the original source alive and properly working. please check this problem.

thank you so much.