Bug 15156 - 2.6.32.6 hang at boot with ati x1600
Summary: 2.6.32.6 hang at boot with ati x1600
Status: CLOSED CODE_FIX
Alias: None
Product: Drivers
Classification: Unclassified
Component: Video(Other) (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: drivers_video-other
URL:
Keywords:
Depends on:
Blocks: 14230
  Show dependency tree
 
Reported: 2010-01-28 05:02 UTC by Alexey Kuznetsov
Modified: 2010-10-26 09:48 UTC (History)
4 users (show)

See Also:
Kernel Version: 2.6.32.6
Subsystem:
Regression: Yes
Bisected commit-id:

Attachments
dmesg 2.6.31.9 (45.88 KB, text/plain)
2010-01-28 05:02 UTC, Alexey Kuznetsov 		Details
config-2.6.32.6 (97.96 KB, text/plain)
2010-01-28 05:44 UTC, Alexey Kuznetsov 		Details
config-2.6.31.9 (95.04 KB, text/plain)
2010-01-28 15:32 UTC, Alexey Kuznetsov 		Details
config-2.6.32.7 (97.93 KB, text/plain)
2010-02-02 23:05 UTC, Alexey Kuznetsov 		Details
Add an attachment (proposed patch, testcase, etc.)

Description Alexey Kuznetsov 2010-01-28 05:02:18 UTC 
2.6.32.6 hang at boot. youtube video here: http://www.youtube.com/watch?v=FY767yw0T68


2.6.31.9 works fine (3d/2d/suspend/kms).
Comment 1 Alexey Kuznetsov 2010-01-28 05:02:44 UTC 
Created attachment 24753 [details]
dmesg 2.6.31.9
Comment 2 Andrew Morton 2010-01-28 05:13:07 UTC 
Marked as a regression.

If you disable the fbdev driver in config, does the machine boot OK?
Comment 3 Alexey Kuznetsov 2010-01-28 05:41:10 UTC 
what exactly i should do?

nomodeset?
Comment 4 Alexey Kuznetsov 2010-01-28 05:43:38 UTC 
ah you mean .config? let me attach it first
Comment 5 Alexey Kuznetsov 2010-01-28 05:44:18 UTC 
Created attachment 24754 [details]
config-2.6.32.6
Comment 6 Alexey Kuznetsov 2010-01-28 05:47:27 UTC 
here some FB_ keys, which one i should to disable?
Comment 7 Andrew Morton 2010-01-28 06:04:24 UTC 
Well I was trying to work out whether it was an fbdev problem or a DRM problem.

As you have CONFIG_FB=y and CONFIG_DRM=m then I guess it's fbdev.  I'll see if I can wake up an fbdev developer...
Comment 8 Andrew Morton 2010-01-28 06:06:29 UTC 
Gack, I can't see which driver you're using.  Please attach a dmesg from the 2.6.31 kernel?
Comment 9 Alexey Kuznetsov 2010-01-28 15:32:26 UTC 
Created attachment 24755 [details]
config-2.6.31.9
Comment 10 Jérôme Glisse 2010-02-02 13:04:46 UTC 
If you are using KMS for radeon please change the following config:
CONFIG_FB_VGA16=n
CONFIG_FB_VESA=n
CONFIG_FB_EFI=n
CONFIG_FB_RADEON=n
CONFIG_FB_RADEON_I2C=n
CONFIG_FB_RADEON_BACKLIGHT=n

Basicly disable all FB driver, KMS is already providing an FB driver. Do you have a macbook pro ? (i can't watch youtube video here).
Comment 11 Alexey Kuznetsov 2010-02-02 23:04:01 UTC 
i did:

CONFIG_FB_VGA16=n
CONFIG_FB_VESA=n
CONFIG_FB_EFI=n
CONFIG_FB_RADEON=n
CONFIG_FB_RADEON_I2C=n
CONFIG_FB_RADEON_BACKLIGHT=n


the same. yes i have a macbook pro.

small summary:

-2.6.31
  kms-boot - ok
  kms-suspend - ok
  ums-boot - ok
  ums-suspend - fail
  fb-boot  - ok
  fb-suspend - fail

-2.6.32+
  kms-boot - fail
  kms-suspend - unknown
  ums-boot - ok
  ums-suspend - fail
  fb-boot  - ok
  fb-suspend - fail
Comment 12 Alexey Kuznetsov 2010-02-02 23:05:33 UTC 
Created attachment 24885 [details]
config-2.6.32.7
Comment 13 Alexey Kuznetsov 2010-02-08 02:37:31 UTC 
same for Linux 2.6.33-rc7 (hang on boot with kms). suspend/resume on fb-boot ok/fail.
Comment 14 Alexey Kuznetsov 2010-02-21 06:48:32 UTC 
2.6.33-rc8 dont hang anymore.

but 2.6.33-rc8 has other bug, and i really can describe it. youtube video: http://www.youtube.com/watch?v=a-ogf8whmC0
Comment 15 Florian Mickler 2010-10-26 09:48:16 UTC 
Can you file another bugreport for the second issue with an appropriate subject if this is still present in current kernels? 

('parts of the screen flimmer' or something like that could probably be used to describe the symptoms)

Regards,
Flo
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