Poor performance when output adapter switches to the discrete GPU
Categories
(Core :: Graphics, defect)
Tracking
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People
(Reporter: bas.schouten, Unassigned)
References
(Blocks 1 open bug)
Details
Attachments
(1 file)
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31.27 KB,
text/plain
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Details |
When Firefox starts up on the intel GPU on my laptop, performance is fine. When I attach an external monitor the output will switch to the discrete GPU, in that situation, Firefox will remain on the Intel GPU, and its performance will be considerably degraded, causing strange jank and frame scheduling issues at times.
Chrome Canary, at least at a quick glance, appears to be suffering from some of the same issues.
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Reporter | |
Comment 1•3 years ago
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It's worth noting if I kill the GPU process, it reconstructs itself around the active GPU and the performance issues resolve themselves.
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Comment 2•3 years ago
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:bas.schouten, can you attach about:support to this bug? When the GPU process was killed, Which GPU was active?
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Updated•3 years ago
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Reporter | |
Comment 3•3 years ago
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Reporter | |
Comment 4•3 years ago
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(In reply to Sotaro Ikeda [:sotaro] from comment #2)
:bas.schouten, can you attach about:support to this bug? When the GPU process was killed, Which GPU was active?
When the GPU process was killed the Intel GPU was active, when it came back, about:support still showed the Intel GPU was active. But profiling showed it was actually using the NVidia GPU. jrmuizel told me this was a known issue.
Description
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