Thanks for the clarification. The situation you described could well be
associated with the gpu lockup. The way to be certain is to look at
dmesg after experiencing one of these lags:
[ 630.190999] [drm] capturing error event; look for more information in
/debug/dri/0/i915_error_state
[ 630.192053] i915: render error detected, EIR: 0x00000010
[ 630.192053] i915: IPEIR: 0x00000000
[ 630.192053] i915: IPEHR: 0x01000000
[ 630.192053] i915: INSTDONE_0: 0xfffffffe
[ 630.192053] i915: INSTDONE_1: 0xffffffff
[ 630.192053] i915: INSTDONE_2: 0x00000000
[ 630.192053] i915: INSTDONE_3: 0x00000000
[ 630.192053] i915: INSTPS: 0x0001e000
[ 630.192053] i915: ACTHD: 0x052175d0
[ 630.192053] i915: page table error
[ 630.192053] i915: PGTBL_ER: 0x00000001
[ 630.192053] [drm:i915_report_and_clear_eir] *ERROR* EIR stuck: 0x00000010,
masking
That one looks like it happened about 10 minutes after booting.
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Incomplete => Triaged
** Changed in: xserver-xorg-video-intel (Ubuntu)
Importance: Undecided => High
** Summary changed:
- [gm45] GPU lockup EIR: 0x00000010 PGTBL_ER: 0x00000001 IPEHR: 0x02000000
+ [gm45] GPU lockup EIR: 0x00000010 PGTBL_ER: 0x00000001 IPEHR: 0x02000000 -
sluggish behavior with gimp and totem
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https://bugs.launchpad.net/bugs/1116732
Title:
[gm45] GPU lockup EIR: 0x00000010 PGTBL_ER: 0x00000001 IPEHR:
0x02000000 - sluggish behavior with gimp and totem
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