[#FP-205] Enabling Hardware Acceleration has No Effect under Linux

Flash Player

Enabling Hardware Acceleration has No Effect under Linux

Created: 05/09/08 04:49 AM Updated: 05/12/08 07:46 PM

Component/s:

Rendering Performance, Video Playback

Security Level:

Public (All JIRA Users )

Severity:	Non Functioning
Reproducibility:	Every Time
Discoverability:	Medium
Found in Version:	Flash Player 9 - 9_0_124_0
Affected OS(s):	Linux - All Linux
Injection:	No
Steps to Reproduce:	« Hide Steps to reproduce: 1. Load a video or rendering resources such as YouTube 2. Start recording CPU Usage. 3. While displaying, open Flash Settings window, and allow video to run with and without "Enable Hardware Acceleration" enabled. 4. Repeat same tests with Fullscreen playback enabled. Actual Results: Playback speed and performance are unaffected by the hardware acceleration setting. CPU usage also unaffected. Expected Results: If a hardware accelerator is present, and especially if fullscreen use is enable, it is expected that either video performance will increase if Hardware Acceleration is enabled, or general CPU usage should decrease as the acceleration hardware relieves the load of software rendering Workaround (if any): None known. Show » Steps to reproduce: 1. Load a video or rendering resources such as YouTube 2. Start recording CPU Usage. 3. While displaying, open Flash Settings window, and allow video to run with and without "Enable Hardware Acceleration" enabled. 4. Repeat same tests with Fullscreen playback enabled. Actual Results: Playback speed and performance are unaffected by the hardware acceleration setting. CPU usage also unaffected. Expected Results: If a hardware accelerator is present, and especially if fullscreen use is enable, it is expected that either video performance will increase if Hardware Acceleration is enabled, or general CPU usage should decrease as the acceleration hardware relieves the load of software rendering Workaround (if any): None known.
Language Found:	English
Bugbase Id:	none
Participants:	Edwin Wong, Steve Castellotti and Tinic Uro
Browser:	Firefox 2.x

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Comments

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Tinic Uro - [05/09/08 04:10 PM ]

YouTube.com does not use hardware accelerated full screen rendering. This requires the use of a special ActionScript API (Stage.fullScreenSourceRect).

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Steve Castellotti - [05/11/08 04:24 AM ]

Discussion of issues around Linux drivers, Compiz Fusion as a desktop environment, and possible conflicts with the Flash plugin referenced in this bug report, for anyone interested:

http://bugs.adobe.com/jira/browse/FP-7

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Edwin Wong - [05/12/08 07:46 PM ]

The checkbox in the settings UI does not guarantee hardware acceleration unless the content uses fullScreenSourceRect() and may require - relaunching of fullscreen to enable. Can you reproduce this with other content than youtube, or content that you know how fullscreensourcerect()?