Mir

i915 driver/i945 hardware: mir_demo_client_eglplasma exits immediately and silently

Bug #1275684 reported by Daniel van Vugt
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Mir
Invalid
Low
Unassigned
mesa (Ubuntu)
Fix Released
Low
Unassigned

Bug Description

On i945 systems (Pentium D and Atom N270 at least), mir_demo_client_eglplasma exits immediately, and silently.

description: updated
summary: - i945: mir_demo_client_eglplasma exits immediately and silently
+ i915 driver/i945 hardware:: mir_demo_client_eglplasma exits immediately
+ and silently
summary: - i915 driver/i945 hardware:: mir_demo_client_eglplasma exits immediately
+ i915 driver/i945 hardware: mir_demo_client_eglplasma exits immediately
and silently
Revision history for this message
Daniel van Vugt (vanvugt) wrote :

Improvement! With the latest vivid (Mesa 10.5), it actually works, kind of. But so slow it's pointless. This is from 1920x1200:

[1427100274.649897] perf: .mir_demo_client_eglplasma-uninstalled: 0.09 FPS, render time 10154.36ms, buffer lag 0.00ms (1 buffers)
[1427100285.094331] perf: .mir_demo_client_eglplasma-uninstalled: 0.09 FPS, render time 10443.43ms, buffer lag 0.00ms (1 buffers)
[1427100295.542456] perf: .mir_demo_client_eglplasma-uninstalled: 0.09 FPS, render time 10434.16ms, buffer lag 0.00ms (1 buffers)

You have to make the window really small to see anything that looks like actual animation:

# env MIR_CLIENT_PERF_REPORT=log bin/mir_demo_client_eglplasma -s 100x100
...
[1427100512.062754] perf: .mir_demo_client_eglplasma-uninstalled: 21.13 FPS, render time 47.01ms, buffer lag 42.27ms (2 buffers)
[1427100513.077899] perf: .mir_demo_client_eglplasma-uninstalled: 21.67 FPS, render time 45.80ms, buffer lag 46.47ms (2 buffers)
[1427100514.101317] perf: .mir_demo_client_eglplasma-uninstalled: 21.50 FPS, render time 46.19ms, buffer lag 46.83ms (2 buffers)

Revision history for this message
Daniel van Vugt (vanvugt) wrote :

Confirmed fixed on both machines when upgraded to the latest vivid with Mesa 10.5.

They're hopelessly slow to run eglplasma, but they do run it.

Changed in mesa (Ubuntu):
status: New → Fix Released
importance: Undecided → Low
Changed in mir:
status: Triaged → Invalid
Revision history for this message
Daniel van Vugt (vanvugt) wrote :
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