3.3.5 regression: resume doesn't switch to X

3.3.5 regression: resume doesn't switch to X

[Jiri Slaby]

Hi,

since update to 3.3.5, my X doesn't show up after resume from
hibernation anymore. The only thing I see is "resuming..." on the
console. I can switch to any tty and login in text mode, but cannot
switch to X despite it is running. I have to restart whole session to
have X again.

Now I'm back to 3.3.4 and everything is OK.

Using radeon driver on:
01:00.0 VGA compatible controller [0300]: Advanced Micro Devices [AMD]
nee ATI RV515 [Radeon Mobility X1450] [1002:7186]

regards,
-- 
js
suse labs

Re: 3.3.5 regression: resume doesn't switch to X

[Greg KH]

On Sat, May 12, 2012 at 09:17:28AM +0200, Jiri Slaby wrote:
> Hi,

<side note, it's stable@vger.kernel.org, not stable@kernel.org>

> since update to 3.3.5, my X doesn't show up after resume from
> hibernation anymore. The only thing I see is "resuming..." on the
> console. I can switch to any tty and login in text mode, but cannot
> switch to X despite it is running. I have to restart whole session to
> have X again.
> 
> Now I'm back to 3.3.4 and everything is OK.

Care to run 'git bisect' to find the offending patch?

thanks,

greg k-h

Re: 3.3.5 regression: resume doesn't switch to X

[Jiri Slaby]

On 05/12/2012 05:43 PM, Greg KH wrote:
> On Sat, May 12, 2012 at 09:17:28AM +0200, Jiri Slaby wrote:
>> Hi,
> 
> <side note, it's stable@vger.kernel.org, not stable@kernel.org>

Ah, fixed. Why it didn't bounce? Is it silently dropped?

>> since update to 3.3.5, my X doesn't show up after resume from
>> hibernation anymore. The only thing I see is "resuming..." on the
>> console. I can switch to any tty and login in text mode, but cannot
>> switch to X despite it is running. I have to restart whole session to
>> have X again.
>>
>> Now I'm back to 3.3.4 and everything is OK.
> 
> Care to run 'git bisect' to find the offending patch?

Hmm, I cannot reproduce. I booted 3.3.5 twice and X did not show up
after resume. Then I booted 3.3.4 and it worked. Now 3.3.5 works too...
So maybe this is uptime related or I hit some race twice in a row?

Anyway now I'm running 3.3.5 and the problem have not recurred yet...

thanks,
-- 
js
suse labs

Re: 3.3.5 regression: resume doesn't switch to X

[David Miller]

From: Jiri Slaby <jslaby@suse.cz>
Date: Sun, 13 May 2012 21:57:34 +0200

> On 05/12/2012 05:43 PM, Greg KH wrote:
>> On Sat, May 12, 2012 at 09:17:28AM +0200, Jiri Slaby wrote:
>>> Hi,
>> 
>> <side note, it's stable@vger.kernel.org, not stable@kernel.org>
> 
> Ah, fixed. Why it didn't bounce? Is it silently dropped?

vger.kernel.org kills it because it looks like SPAM or a looping
posting since it has Delivered-To: header fields in it when the
copy comes from stable@kernel.org

The kernel.org folks needs to really just take that email alias
down and turn it off, nothing from it makes the list for almost
a year now.  It's completely pointless.

Re: 3.3.5 regression: resume doesn't switch to X

[Sedat Dilek]

Reading LKML offline (original post from [1]):

The only drm-radeon-kms patch between v3.3.4 and v3.3.5 was [2] (see
also series file in [3]):

1 From 700698e7c303f5095107c62a81872c2c3dad1702 Mon Sep 17 00:00:00 2001
2 From: Alex Deucher <alexander.deucher@amd.com>
3 Date: Fri, 27 Apr 2012 17:18:59 -0400
4 Subject: drm/radeon/kms: need to set up ss on DP bridges as well
5
6 From: Alex Deucher <alexander.deucher@amd.com>
7
8 commit 700698e7c303f5095107c62a81872c2c3dad1702 upstream.

Wanna try with a revert of it?

- Sedat -


[1] http://marc.info/?l=linux-kernel&m=133680721203159&w=2
[2] http://git.kernel.org/?p=linux/kernel/git/stable/stable-queue.git;a=blob;f=releases/3.3.5/drm-radeon-kms-need-to-set-up-ss-on-dp-bridges-as-well.patch;h=2c73bf8dbc7818091cb85d550e86307e78de8a3d;hb=HEAD
[3] http://git.kernel.org/?p=linux/kernel/git/stable/stable-queue.git;a=blob;f=releases/3.3.5/series