Bug 98605 - modesetting doesn't fall back to shm if glamor_init() fails
Summary: modesetting doesn't fall back to shm if glamor_init() fails
Status: RESOLVED MOVED
Alias: None
Product: xorg
Classification: Unclassified
Component: Server/Acceleration/glamor (show other bugs)
Version: unspecified
Hardware: Other All
: medium major
Assignee: Xorg Project Team
QA Contact: Xorg Project Team
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2016-11-05 22:51 UTC by Javier
Modified: 2018-12-13 18:25 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:


Attachments
Xorg log with glamor warning and server error (10.84 KB, text/x-log)
2016-11-05 22:51 UTC, Javier
no flags Details

Description Javier 2016-11-05 22:51:30 UTC
Created attachment 127794 [details]
Xorg log with glamor warning and server error

On a Toshiba NB505 I have no problem when using the "xf86-video-intel" driver.  However when trying to use the "modesetting" driver now embedded into the Xorg server I get:

[    26.287] (WW) glamor requires at least 128 instructions (64 reported)
[    26.287] (EE) modeset(0): Failed to initialize glamor at ScreenInit() time.
[    26.287] (EE) 
Fatal server error:
[    26.287] (EE) AddScreen/ScreenInit failed for driver 0
[    26.287] (EE) 
[    26.287] (EE)

I'm using the "i915" linux gpu driver, while lspci shows:

VGA compatible controller: Intel Corporation Atom Processor D4xx/D5xx/N4xx/N5xx Integrated Graphics Controller

And according to the specs under:

https://www.cnet.com/products/toshiba-nb505-n500bl-10-1-atom-n455-1-gb-ram-250-gb-hdd-us/specs

Then:

CPU                 Intel Atom N455 / 1.66 GHz
...
Graphics Processor  Intel GMA 3150

Sounds like a bug in the glamor acceleration...
Comment 1 Adam Jackson 2018-06-12 16:03:41 UTC
Updating the summary to be a bit more clear. We could fall back softly to shm, we're just not trying.
Comment 2 GitLab Migration User 2018-12-13 18:25:46 UTC
-- 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/xorg/xserver/issues/99.


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