Bug 885882 - Xorg issues w/ Intel i915 driver on RHEL 6.4 beta
Xorg issues w/ Intel i915 driver on RHEL 6.4 beta
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: mesa (Show other bugs)
x86_64 Linux
unspecified Severity medium
: rc
: ---
Assigned To: Dave Airlie
Desktop QE
: OtherQA, Regression
Depends On:
Blocks: 887759 895654
  Show dependency treegraph
Reported: 2012-12-10 16:37 EST by Ben Breard
Modified: 2013-03-21 04:22 EDT (History)
2 users (show)

See Also:
Fixed In Version: mesa-9.0-0.3.el6
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
: 887759 (view as bug list)
Last Closed: 2013-02-21 03:49:49 EST
Type: Bug
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
dmesg log (86.45 KB, application/octet-stream)
2012-12-10 16:37 EST, Ben Breard
no flags Details
xorg log (63.95 KB, text/plain)
2012-12-10 16:38 EST, Ben Breard
no flags Details
glxinfo (14.27 KB, text/plain)
2012-12-11 12:06 EST, Ben Breard
no flags Details

  None (edit)
Description Ben Breard 2012-12-10 16:37:02 EST
Created attachment 661156 [details]
dmesg log

Description of problem:
After upgrading to 6.4 beta I noticed that desktop compositing isn't working. There are several warnings and errors in Xorg.0.log. I'm using a fairly standard Lenovo X220 laptop.

Version-Release number of selected component (if applicable):
RHEL 6.4 Beta. 

How reproducible:

Steps to Reproduce:
1. install 
2. boot

Additional info:

I'm happy to try out any test packages and/or provide additional info. Thanks.
Comment 1 Ben Breard 2012-12-10 16:38:09 EST
Created attachment 661157 [details]
xorg log
Comment 3 Adam Jackson 2012-12-11 10:13:42 EST
Odd, the X log certainly thinks GL is working.  Can you attach the output from glxinfo?
Comment 4 Ben Breard 2012-12-11 12:06:52 EST
Created attachment 661573 [details]

Here you go.
Comment 5 Ben Breard 2012-12-14 00:48:56 EST
I should add that Gnome seems to work fine with compositing. This only effects the version of KDE that ships w/ RHEL 6. All previous minor releases of RHEL 6 worked perfectly. Than seems to think this is more likely an issue w/ mesa that Xorg. Any idea how to track this down?
Comment 6 Ben Breard 2012-12-14 20:46:42 EST
I can confirm that downgrading mesa* to 7.11-5 fixes this issue. Apparently the rebase of mesa is what's causing problems with KDE. I've reassigned this BZ to mesa. Please let me know if there's any other debug info I can provide. 

This is 100% reproducible.
Comment 8 Dave Airlie 2012-12-16 21:44:35 EST
okay I've ruled out MSAA as the culprit, now sure where to go next, kwin isn't the most verbose with its info.
Comment 9 Dave Airlie 2012-12-16 23:13:11 EST
okay more info, this is due to kwin forcing an indirect context and that breaking.

running KWIN_DIRECT_GL=1 makes it work, so we need to track down what broke indirect context for kwin.
Comment 10 Dave Airlie 2012-12-17 00:54:08 EST
okay two issues

a) indirect rendering was broken, patch posted upstream, and here

b) msaa confuses kwin.

will work out the fix for (b)
Comment 11 Dave Airlie 2012-12-17 01:08:31 EST
This will require an X server bug as well.
Comment 12 RHEL Product and Program Management 2012-12-17 01:20:47 EST
This request was evaluated by Red Hat Product Management for
inclusion in a Red Hat Enterprise Linux release.  Product
Management has requested further review of this request by
Red Hat Engineering, for potential inclusion in a Red Hat
Enterprise Linux release for currently deployed products.
This request is not yet committed for inclusion in a release.
Comment 17 Dave Airlie 2012-12-18 21:04:39 EST

is built in brew
Comment 26 errata-xmlrpc 2013-02-21 03:49:49 EST
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.


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