[Nouveau] [Bug 91523] [NVE7] driver cannot initialize gpu(failed to parse ramcfg data)

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=91523

Martin Peres  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |MOVED

--- Comment #7 from Martin Peres  ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance:
https://gitlab.freedesktop.org/xorg/driver/xf86-video-nouveau/issues/206.

-- 
You are receiving this mail because:
You are the assignee for the bug.___
Nouveau mailing list
Nouveau@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/nouveau

[Nouveau] [Bug 91523] [NVE7] driver cannot initialize gpu(failed to parse ramcfg data)

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=91523

--- Comment #6 from FeepingCreature  ---
Looking at envytools' nvbios decode, given ramcfg=1, the first entry of the
timing mapping table (0x718f) has a value of 0xf at index 1, offset 0. This is
taken as index into the timing table (0x733c); however, the timing table only
defines 12 entries, and only six of them are nonzero.

If I simply skip entry 0, reclocking works fine. Maybe that's what 0x0f
indicates?

-- 
You are receiving this mail because:
You are the assignee for the bug.___
Nouveau mailing list
Nouveau@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/nouveau

[Nouveau] [Bug 91523] [NVE7] driver cannot initialize gpu(failed to parse ramcfg data)

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=91523

--- Comment #5 from default_357-l...@yahoo.de ---
I still get this error in 4.14.1. Same laptop, same vbios.rom. If I comment out
the "return ret" in
https://github.com/torvalds/linux/blob/master/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgk104.c#L1577,
it boots and runs 3d acceleration with xrandr offload, but cannot reclock
successfully.

-- 
You are receiving this mail because:
You are the assignee for the bug.___
Nouveau mailing list
Nouveau@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/nouveau

[Nouveau] [Bug 91523] [NVE7] driver cannot initialize gpu(failed to parse ramcfg data)

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=91523

--- Comment #4 from Ilia Bozhinov  ---
I tested a kernel build with the relevant code commented(right after the
comment I posted) and indeed the kernel module works! (it loads and DRI_PRIME=1
allows me to run glxgears/glxinfo). What is more, now I get better power
savings because when driver is loaded vgaswitcheroo can turn off the nvidia
card.

-- 
You are receiving this mail because:
You are the assignee for the bug.___
Nouveau mailing list
Nouveau@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/nouveau

[Nouveau] [Bug 91523] [NVE7] driver cannot initialize gpu(failed to parse ramcfg data)

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=91523

--- Comment #3 from Ilia Bozhinov  ---
It seems that the code that triggers this bug is in
drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgk104.cpp around line 1583. It seems
that the assumption in the comment is not true, on my card this condition
obviously doesn't mean that the card should be ignored completely. This maybe
has some other meaning, does anybody know how I can help debugging the problem?
I'm posting the comment in the code:

/* parse bios data for all rammap table entries up-front, and   
 * build information on whether certain fields differ between   
 * any of the entries.  
 *  
 * the binary driver appears to completely ignore some fields   
 * when all entries contain the same value.  at first, it was   
 * hoped that these were mere optimisations and the bios init   
 * tables had configured as per the values here, but there is   
 * evidence now to suggest that this isn't the case and we do   
 * need to treat this condition as a "don't touch" indicator.   
 */

-- 
You are receiving this mail because:
You are the assignee for the bug.___
Nouveau mailing list
Nouveau@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/nouveau

[Nouveau] [Bug 91523] [NVE7] driver cannot initialize gpu(failed to parse ramcfg data)

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=91523

--- Comment #2 from Ilia Bozhinov iliy...@hotmail.com ---
Created attachment 117483
  -- https://bugs.freedesktop.org/attachment.cgi?id=117483action=edit
vbios.rom

-- 
You are receiving this mail because:
You are the assignee for the bug.
___
Nouveau mailing list
Nouveau@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/nouveau