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SubjectRe: [REGRESSION] v4.17-rc4: xgalaga fails to start in fullscreen (default) mode
On Mon, May 21, 2018 at 12:53:20PM -0700, Vito Caputo wrote:
> Hello all,
>
> 4.17-rc4 (my latest kernel ATM) consistently fails to start xgalaga
> without -window. I will try find time to build the latest rc this
> evening.
>
> > ~$ xgalaga
> > X Error of failed request: BadValue (integer parameter out of range for operation)
> > Major opcode of failed request: 152 (XFree86-VidModeExtension)
> > Minor opcode of failed request: 10 (XF86VidModeSwitchToMode)
> > Value in failed request: 0x120004e
> > Serial number of failed request: 199
> > Current serial number in output stream: 203
>
> Haven't dug into this much yet, only did a perfunctory check by booting into a
> few older kernels (4.11, 4.12, 4.16) and the problem is absent on all of them.
> It appears to be a 4.17-specific regression right now.
>
> Also observed, though this is surely a different regression, the game
> ran like molasses with -window, showing some prominent kworkers in top:
>
> 692 vc 20 0 312852 45884 20556 R 32.0 1.2 0:08.69 Xorg
> 102 root 20 0 0 0 0 R 11.2 0.0 0:01.43 kworker/1:3
> 94 root 20 0 0 0 0 I 8.9 0.0 0:00.83 kworker/0:2
> 696 vc 20 0 39948 4124 2912 S 1.0 0.1 0:05.57 vwm
> 902 vc 30 10 46372 4144 3500 S 0.7 0.1 0:00.08 xgalaga
> 891 vc 30 10 44924 3868 3156 R 0.3 0.1 0:00.09 top
> 903 vc 30 10 4180 1184 1100 S 0.3 0.0 0:00.01 xgal.sndsrv.oss
>
> The windowed performance issue was observed on the older kernels tested
> as well, though 4.11 felt better and didn't have the busy kworkers.
>
> I have not attempted to play xgalaga for ages, but it used to be perfectly
> playable on this machine in windowed mode when I last did.
>
> Machine is the venerable Thinkpad X61s, 1.8Ghz, Debian 9, config attached.
>

Just built and booted v4.17-rc6, still broken.

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