[Bug 198511] lags in youtube videos 1080p 60fps with radeon hd4650 and kernel 4.15rc8

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=198511

--- Comment #13 from Barto (mister.freeman at laposte.net) ---
the specs of my PC :

cpu : intel core 2 quad Q9650 ( 3 Ghz )
ram : 8 Gb DDR2
gpu : amd radeon HD4650 pcie
motherboard : gigabyte GA-P35-DS3L ( socket 775, chipset intel P35 )
window manager : plasma 5 ( kde )
OS : archlinux 64 bits
web browser : firefox 57.0.4 ( youtube in html5 mode, no flash plugin )


the output of "cat /proc/meminfo" when the bug occurs :

MemTotal:        8171844 kB
MemFree:         6188792 kB
MemAvailable:    6979356 kB
Buffers:          156940 kB
Cached:           780372 kB
SwapCached:            0 kB
Active:          1020160 kB
Inactive:         742148 kB
Active(anon):     647812 kB
Inactive(anon):   126472 kB
Active(file):     372348 kB
Inactive(file):   615676 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:       5242876 kB
SwapFree:        5242876 kB
Dirty:             21768 kB
Writeback:             0 kB
AnonPages:        812840 kB
Mapped:           423408 kB
Shmem:            127600 kB
Slab:              73336 kB
SReclaimable:      46020 kB
SUnreclaim:        27316 kB
KernelStack:        6256 kB
PageTables:        29324 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:     9328796 kB
Committed_AS:    2785064 kB
VmallocTotal:   34359738367 kB
VmallocUsed:           0 kB
VmallocChunk:          0 kB
HardwareCorrupted:     0 kB
AnonHugePages:    145408 kB
ShmemHugePages:        0 kB
ShmemPmdMapped:        0 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:      187264 kB
DirectMap2M:     8200192 kB

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