[Bug 30620] New: KMS on RS100: no display on VGA

[Bug 30620] New: KMS on RS100: no display on VGA

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=30620

           Summary: KMS on RS100: no display on VGA
           Product: DRI
           Version: unspecified
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: zajec5@gmail.com


I've bug report from user with old notebook with ATI 320M (RS100). She
installed openSUSE 11.3 which comes with 2.6.34 and can not get driver display
anything.

The important part is that notebook's PANEL is broken and she uses VGA for
external monitor.

There are two KMS cases I got tested by her:
1) "vga=0x31a" ─ black VGA screen right after booting start
2) "" (no vga) ─ black VGA screen right after booting start

So I asked to experiment with UMS a little:
3) "vga=0x31a radeon.modeset=0 3" ─ radeonfb loads, VGA works!
4) "vga=0x31a radeon.modeset=0" ─ radeonfb works, black VGA screen on X start

Without radeonfb:
5) "radeon.modeset=0 3" ─ pure console works on VGA, no radeonfb
6) "radeon.modeset=0" ─ pure console works on VGA, black VGA on X start


My conclusions:
1) KMS can not initialize VGA
2) UMS can not initialize VGA
3) radeonfb *can* initialize VGA
4) There is no conflict with radeonfb, as dropping "vga=0x31a" does not help

What else can I ask for to make it debuggable?

I thought of Xorg.0.log but it may be hard to get for her as she had to mount
some USB storage in console and copy file to it.
Taking "dmesg | grep drm" could be easier. Would it be useful?

-- 
Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 30620] KMS on RS100: no display on VGA

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=30620

--- Comment #1 from Alex Deucher <agd5f@yahoo.com> 2010-10-05 08:12:07 PDT ---
Can you attach the kms dmesg output and the Xorg log?

-- 
Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

[Bug 30620] KMS on RS100: no display on VGA

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=30620

--- Comment #2 from Alex Deucher <agd5f@yahoo.com> 2010-10-05 09:15:37 PDT ---
Also, please attach a copy of your video bios.  To get a copy, do the following
as root:

cd /sys/bus/pci/devices/<pci bus id>
echo 1 > rom
cat rom > /tmp/vbios.rom
echo 0 > rom

-- 
Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

[Bug 30620] KMS on RS100: no display on VGA

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=30620

--- Comment #3 from Rafał Miłecki <zajec5@gmail.com> 2010-10-05 10:24:22 PDT ---
Created an attachment (id=39185)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=39185)
dmesg for KMS

I didn't want to explain how to blacklist module, test, then remove it so I
proposed something different for Westa:
1) Booting with radeon.modeset=0
2) rmmod radeon && modprobe radeon modeset=1

-- 
Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 30620] KMS on RS100: no display on VGA

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=30620

--- Comment #4 from Rafał Miłecki <zajec5@gmail.com> 2010-10-05 10:25:18 PDT ---
Created an attachment (id=39186)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=39186)
[UMS] Xorg.0.log

Xorg.0.log form *UMS* as problem seems to be shared between KMS and UMS. This
may give some hint on fixing it.

-- 
Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 30620] KMS on RS100: no display on VGA

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=30620

--- Comment #5 from Alex Deucher <agd5f@yahoo.com> 2010-10-05 10:42:02 PDT ---
Everything looks correct.  Can you dump the regs using radeontool with kms and
with radeonfb?  As root:
with radeonfb:
radeontool regmatch '*' > working.regs
with kms:
radeontool regmatch '*' > broken.regs

You can get radeontool here:
http://cgit.freedesktop.org/~airlied/radeontool/

-- 
Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

[Bug 30620] KMS on RS100: no display on VGA

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=30620

--- Comment #6 from Rafał Miłecki <zajec5@gmail.com> 2010-10-05 12:29:10 PDT ---
Created an attachment (id=39189)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=39189)
regs dump when using KMS

-- 
Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 30620] KMS on RS100: no display on VGA

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=30620

--- Comment #7 from Rafał Miłecki <zajec5@gmail.com> 2010-10-05 12:29:37 PDT ---
Created an attachment (id=39190)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=39190)
regs dump when using radeonfb

-- 
Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 30620] KMS on RS100: no display on VGA

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=30620

--- Comment #8 from Rafał Miłecki <zajec5@gmail.com> 2010-10-05 12:31:36 PDT ---
Created an attachment (id=39192)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=39192)
diff -u broken.regs working.regs

-- 
Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 30620] KMS on RS100: no display on VGA

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=30620

Alex Deucher <agd5f@yahoo.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #39192|text/x-diff                 |text/plain
          mime type|                            |
  Attachment #39192|0                           |1
           is patch|                            |

-- 
Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

[Bug 30620] KMS on RS100: no display on VGA

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=30620

--- Comment #9 from Alex Deucher <agd5f@yahoo.com> 2010-10-05 14:43:25 PDT ---
Does the following fix kms/ums?
radeontool regset 0x0284 0x00230000

-- 
Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

[Bug 30620] KMS on RS100: no display on VGA

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=30620

--- Comment #10 from Alex Deucher <agd5f@yahoo.com> 2010-10-05 15:10:25 PDT ---
Created an attachment (id=39197)
 View: https://bugs.freedesktop.org/attachment.cgi?id=39197
 Review: https://bugs.freedesktop.org/review?bug=30620&attachment=39197

disable alt timing for CRT

This kms patch should fix the issue I think.

-- 
Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

[Bug 30620] KMS on RS100: no display on VGA

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=30620

--- Comment #11 from Rafał Miłecki <zajec5@gmail.com> 2010-10-16 00:58:35 PDT ---
(In reply to comment #9)
> Does the following fix kms/ums?
> radeontool regset 0x0284 0x00230000

I got false positive report about this :(

What I asked for was executing:
1) Boot without vga=... and with radeon.modeset=0 3
2) Executing rmmod radeon
3) Executing:
modprobe radeon modeset=1; sleep 5s; radeontool regset 0x0284 0x00230000

I got response monitor gone black and then came on again. But I now I know it
has happened after 1s, not 5s! It seems loading radeon this one time didn't
break VGA output.

Maybe some register survived reboot? Maybe regs dumps are not clean actually,
maybe I should ask to grab them from cold boot? :|

-- 
Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 30620] [RADEON:KMS:RS100:MODESET] no display on VGA

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=30620

Jerome Glisse <glisse@freedesktop.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|KMS on RS100: no display on |[RADEON:KMS:RS100:MODESET]
                   |VGA                         |no display on VGA

-- 
Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

[Bug 30620] [RADEON:KMS:RS100:MODESET] no display on VGA

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 669 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=30620

--- Comment #12 from auxsvr@gmail.com ---
Created attachment 68470
  --> https://bugs.freedesktop.org/attachment.cgi?id=68470&action=edit
diff -u regs-fail regs-working

I just tried installing openSUSE 12.1 on an old compaq presario 900 with a
broken TFT panel and have exactly the same problem. Setting register 0x0284
does not work, and shortly after reloading radeon with modeset=1 the system
hangs. Is there anything else to try?

The attached diff compares the register values when modeset=0 (working) with
them when modeset=1 (fail).

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1558 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 30620] [RADEON:KMS:RS100:MODESET] no display on VGA

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 805 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=30620

Martin Peres <martin.peres@free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |MOVED
             Status|NEW                         |RESOLVED

--- Comment #13 from Martin Peres <martin.peres@free.fr> ---
-- 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/drm/amd/issues/160.

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 2353 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel