Slow graphics after last kernel update (I think)

mikael.larsson at mikael.larsson at
Fri Jul 16 15:54:25 UTC 2010

Hello fedora list. 
I updated my IBM Thinkpad R51 running fedora 12 a couple of days ago. 
Now lots of applications that used to work runs very slow and CPU throttle
seems to be at max almost all the time.
Gnome-system-monitor takes up to 5 minutes to start, it used to start in
Supertux runs at about 3 frames/second, used to run a lot faster. 
Scrolling content in firefox is very slow and CPU throttle hits max
instantly and stays there for a long time. 
Flash from youtube in firefox runs at 2 frames/second, used to run at
about 20 frames/second. 

The compiz animation stuff still works at same speed. 

The automatic bug reporting tool gave me this the other day while the
system was logged in but no apps were running on the desktop. 

WARNING: at drivers/gpu/drm/radeon/radeon_fence.c:159
radeon_fence_signaled+0x56/0x83 [radeon]()
Hardware name: 1829DRG
Querying an unemited fence : ebb30d40 !
Modules linked in: arc4 ecb lib80211_crypt_wep fuse sunrpc
cpufreq_ondemand acpi_cpufreq ip6t_REJECT nf_conntrack_ipv6 ip6table_filter
ip6_tables ipv6 dm_multipath uinput snd_intel8x0 snd_intel8x0m
snd_ac97_codec ac97_bus ppdev snd_seq snd_seq_device parport_pc snd_pcm
snd_timer thinkpad_acpi parport ipw2100 e1000 nsc_ircc snd libipw iTCO_wdt
irda iTCO_vendor_support crc_ccitt soundcore rfkill lib80211 snd_page_alloc
i2c_i801 joydev firewire_ohci video firewire_core yenta_socket
rsrc_nonstatic crc_itu_t output radeon ttm drm_kms_helper drm i2c_algo_bit
i2c_core [last unloaded:microcode]
Pid: 1442, comm: Xorg Not tainted #1 

Booting on the previous kernel seems to solve all
these problems. 
Does anyone knew what's going on here ? 

Mikael Larsson

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