Bug 21213 - i945 : black screen using UXA
Summary: i945 : black screen using UXA
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/intel (show other bugs)
Version: 7.4 (2008.09)
Hardware: x86-64 (AMD64) Linux (All)
: medium major
Assignee: Carl Worth
QA Contact: Xorg Project Team
Keywords: NEEDINFO
Depends on:
Reported: 2009-04-15 18:55 UTC by incubusss
Modified: 2009-08-17 14:09 UTC (History)
2 users (show)

See Also:
i915 platform:
i915 features:

Xorg log (28.64 KB, text/plain)
2009-04-15 18:55 UTC, incubusss
no flags Details
syslog with trace (4.51 KB, text/plain)
2009-04-17 10:16 UTC, incubusss
no flags Details

Description incubusss 2009-04-15 18:55:39 UTC
Created attachment 24836 [details]
Xorg log

UXA doesn't work at all (black screen) with current intel driver git. With intel driver 2.6.3 it works.
There's no problems with EXA.

lspci :

00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub (rev 03)                         
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03)               
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03)

Xorg.0.log (full log attached) :

(WW) intel(0): ESR is 0x00000001, instruction error
(WW) intel(0): PRB0_CTL (0x0001f001) indicates ring buffer enabled
(WW) intel(0): Existing errors found in hardware state.

Syslog :

klogd: RIP: 0010:[<ffffffffa064a730>]  [<ffffffffa064a730>] i915_irq_emit+0x160/0x220 [i915]
klogd:  [<ffffffffa064a5d0>] ? i915_irq_emit+0x0/0x220 [i915]
klogd: RIP  [<ffffffffa064a730>] i915_irq_emit+0x160/0x220 [i915]

OS :
Mandriva 2009.1 cooker
X.Org X Server 1.6.1
libdrm 2.4.9
Comment 1 incubusss 2009-04-17 10:16:13 UTC
Created attachment 24903 [details]
syslog with trace

I attach full syslog with Trace
Comment 2 Eric Anholt 2009-05-15 23:44:55 UTC
Does your distro kernel have GEM disabled somehow?

(II) intel(0): 0x0062b000-0x00e2afff: fake bufmgr (8192 kB)

There are some fixes for non-GEM UXA post 2.7.1
Comment 3 Carl Worth 2009-08-17 14:09:43 UTC

Thank you for the original bug report. Without additional information,
we're going to assume that the bug is indeed fixed, (by the fixes
alluded to by Eric above).

If you discover that we're wrong, please reopen the bug and let us know
the circumstances under which the bug still persists.



Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.