I've got this same issue as well on my Sony VPC-SA I tried this with the latest upstream, on a clean-install with only some small power-saving tweaks.
Most importantly is probably: I disable the radeon with vgaswitcheroo on startup: vi /etc/rc.local {{ rfkill block bluetooth echo OFF > /sys/kernel/debug/vgaswitcheroo/switch exit 0 }} and during standby/resume I restart the radeon by pushing ON/OFF in vgaswitcheroo: vi /etc/pm/sleep.d/10_disable_radeon {{ case "${1}" in resume|thaw) echo ON > /sys/kernel/debug/vgaswitcheroo/switch echo OFF > /sys/kernel/debug/vgaswitcheroo/switch ;; esac }} but unfortunately it has the same issue Linux leon-VPCSA2C5E 3.4.0-999-generic #201205120426 SMP Sat May 12 08:27:37 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux and here my dmesg dump: [ 44.245763] [drm:pch_irq_handler] *ERROR* PCH poison interrupt [ 48.288902] wlan0: deauthenticating from 00:1d:45:a6:30:f0 by local choice (reason=3) [ 48.298756] cfg80211: All devices are disconnected, going to restore regulatory settings [ 48.298761] cfg80211: Restoring regulatory settings [ 48.298796] cfg80211: Calling CRDA to update world regulatory domain [ 48.303838] cfg80211: Ignoring regulatory request Set by core since the driver uses its own custom regulatory domain [ 48.303841] cfg80211: World regulatory domain updated: [ 48.303842] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) [ 48.303844] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 48.303846] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) [ 48.303847] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) [ 48.303848] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 48.303850] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) [ 49.677076] PM: Syncing filesystems ... done. [ 49.677858] PM: Preparing system for mem sleep [ 50.982769] Freezing user space processes ... (elapsed 0.01 seconds) done. [ 50.996104] Freezing remaining freezable tasks ... (elapsed 0.01 seconds) done. [ 51.012109] PM: Entering mem sleep [ 51.012159] Suspending console(s) (use no_console_suspend to debug) [ 51.012430] sd 0:0:0:0: [sda] Synchronizing SCSI cache [ 51.013119] sd 0:0:0:0: [sda] Stopping disk [ 51.128045] Ready to suspend [ 52.143771] PM: suspend of devices complete after 1131.884 msecs [ 52.143774] PM: suspend devices took 1.132 seconds [ 52.143858] PM: late suspend of devices complete after 0.082 msecs [ 52.159725] xhci_hcd 0000:04:00.0: wake-up capability enabled by ACPI [ 52.191756] ehci_hcd 0000:00:1d.0: wake-up capability enabled by ACPI [ 52.207703] ehci_hcd 0000:00:1a.0: wake-up capability enabled by ACPI [ 52.239659] PM: noirq suspend of devices complete after 95.826 msecs [ 52.239870] ACPI: Preparing to enter system sleep state S3 [ 52.240393] PM: Saving platform NVS memory [ 52.242776] Disabling non-boot CPUs ... [ 52.244698] CPU 1 is now offline [ 52.347540] CPU 2 is now offline [ 52.348026] Broke affinity for irq 1 [ 52.451497] CPU 3 is now offline [ 52.451841] Extended CMOS year: 2000 [ 52.452872] ACPI: Low-level resume complete [ 52.452910] PM: Restoring platform NVS memory [ 52.453329] Extended CMOS year: 2000 [ 52.453362] Enabling non-boot CPUs ... [ 52.453426] Booting Node 0 Processor 1 APIC 0x1 [ 52.466739] NMI watchdog: enabled, takes one hw-pmu counter. [ 52.466930] CPU1 is up [ 52.466999] Booting Node 0 Processor 2 APIC 0x2 [ 52.480295] NMI watchdog: enabled, takes one hw-pmu counter. [ 52.480482] CPU2 is up [ 52.480533] Booting Node 0 Processor 3 APIC 0x3 [ 52.493854] NMI watchdog: enabled, takes one hw-pmu counter. [ 52.494093] CPU3 is up [ 52.497732] ACPI: Waking up from system sleep state S3 [ 52.961209] ehci_hcd 0000:00:1a.0: wake-up capability disabled by ACPI [ 52.961449] ehci_hcd 0000:00:1d.0: wake-up capability disabled by ACPI [ 52.962235] xhci_hcd 0000:04:00.0: wake-up capability disabled by ACPI [ 52.962666] PM: noirq resume of devices complete after 1.607 msecs [ 52.962748] PM: early resume of devices complete after 0.045 msecs [ 52.962808] i915 0000:00:02.0: setting latency timer to 64 [ 52.962822] ehci_hcd 0000:00:1a.0: setting latency timer to 64 [ 52.962846] mei 0000:00:16.0: irq 50 for MSI/MSI-X [ 52.962942] snd_hda_intel 0000:00:1b.0: irq 52 for MSI/MSI-X [ 52.962943] Ready to resume [ 52.964742] ehci_hcd 0000:00:1d.0: setting latency timer to 64 [ 52.972770] ahci 0000:00:1f.2: setting latency timer to 64 [ 52.972884] rtsx_acquire_irq: chip->msi_en = 0, pci->irq = 17 [ 53.008623] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off [ 53.096818] tpm_tis 00:0a: A TPM error (7) occurred attempting to read a pcr value [ 53.096827] tpm_tis 00:0a: TPM is disabled/deactivated (0x7) [ 53.308741] ata5: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 53.316485] ata5.00: configured for UDMA/100 [ 53.316701] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) [ 53.356068] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out [ 53.366063] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out [ 53.366642] ata1.00: configured for UDMA/133 [ 53.380841] sd 0:0:0:0: [sda] Starting disk [ 53.381761] Extended CMOS year: 2000 [ 53.387037] PM: resume of devices complete after 424.420 msecs [ 53.387103] PM: resume devices took 0.424 seconds [ 53.387141] PM: Finishing wakeup. [ 53.387142] Restarting tasks ... done. [ 53.392800] video LNXVIDEO:09: Restoring backlight state [ 53.473200] [drm:pch_irq_handler] *ERROR* PCH poison interrupt [ 53.756571] radeon: switched on [ 53.756581] radeon 0000:01:00.0: enabling device (0000 -> 0003) [ 53.756590] radeon 0000:01:00.0: GPU softreset [ 53.756592] radeon 0000:01:00.0: GRBM_STATUS=0xFFFFFFFF [ 53.756595] radeon 0000:01:00.0: GRBM_STATUS_SE0=0xFFFFFFFF [ 53.756598] radeon 0000:01:00.0: GRBM_STATUS_SE1=0xFFFFFFFF [ 53.756601] radeon 0000:01:00.0: SRBM_STATUS=0xFFFFFFFF [ 53.967621] radeon 0000:01:00.0: Wait for MC idle timedout ! [ 53.967623] radeon 0000:01:00.0: GRBM_SOFT_RESET=0x00007F6B [ 53.967726] radeon 0000:01:00.0: GRBM_STATUS=0xFFFFFFFF [ 53.967728] radeon 0000:01:00.0: GRBM_STATUS_SE0=0xFFFFFFFF [ 53.967730] radeon 0000:01:00.0: GRBM_STATUS_SE1=0xFFFFFFFF [ 53.967732] radeon 0000:01:00.0: SRBM_STATUS=0xFFFFFFFF [ 58.970818] [drm:atom_op_jump] *ERROR* atombios stuck in loop for more than 5secs aborting [ 58.970822] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing CEDE (len 62, WS 0, PS 0) @ 0xCEFA [ 58.970826] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing BBF2 (len 1036, WS 4, PS 0) @ 0xBCEF [ 58.970829] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing BB88 (len 76, WS 0, PS 8) @ 0xBB90 [ 59.178331] radeon 0000:01:00.0: Wait for MC idle timedout ! [ 59.386567] radeon 0000:01:00.0: Wait for MC idle timedout ! [ 59.399131] [drm] PCIE GART of 512M enabled (table at 0x0000000000040000). [ 59.399283] radeon 0000:01:00.0: WB enabled [ 59.399285] [drm] fence driver on ring 0 use gpu addr 0x40000c00 and cpu addr 0xffff88024f39ac00 [ 59.624492] [drm:r600_ring_test] *ERROR* radeon: ring 0 test failed (scratch(0x8500)=0xFFFFFFFF) [ 59.624495] [drm:evergreen_resume] *ERROR* evergreen startup failed on resume [ 64.625020] [drm:atom_op_jump] *ERROR* atombios stuck in loop for more than 5secs aborting [ 64.625026] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing C594 (len 1136, WS 0, PS 0) @ 0xC5BE [ 69.627428] [drm:atom_op_jump] *ERROR* atombios stuck in loop for more than 5secs aborting [ 69.627432] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing CEDE (len 62, WS 0, PS 0) @ 0xCEFA [ 74.629837] [drm:atom_op_jump] *ERROR* atombios stuck in loop for more than 5secs aborting [ 74.629840] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing CEDE (len 62, WS 0, PS 0) @ 0xCEFA [ 79.632248] [drm:atom_op_jump] *ERROR* atombios stuck in loop for more than 5secs aborting [ 79.632252] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing CEDE (len 62, WS 0, PS 0) @ 0xCEFA [ 84.634661] [drm:atom_op_jump] *ERROR* atombios stuck in loop for more than 5secs aborting [ 84.634671] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing CEDE (len 62, WS 0, PS 0) @ 0xCEFA [ 89.637072] [drm:atom_op_jump] *ERROR* atombios stuck in loop for more than 5secs aborting [ 89.637086] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing CEDE (len 62, WS 0, PS 0) @ 0xCEFA [ 94.639484] [drm:atom_op_jump] *ERROR* atombios stuck in loop for more than 5secs aborting [ 94.639503] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing CEDE (len 62, WS 0, PS 0) @ 0xCEFA [ 94.639648] radeon: switched off [ 94.639681] radeon 0000:01:00.0: ffff88024ec96400 unpin not necessary [ 95.072003] iwlwifi 0000:02:00.0: L1 Enabled; Disabling L0S [ 95.078631] iwlwifi 0000:02:00.0: Radio type=0x1-0x2-0x0 [ 95.213677] ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 95.347310] r8169 0000:05:00.0: eth0: link down [ 95.347981] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 102.852440] wlan0: authenticate with 00:1d:45:a6:30:f0 [ 102.855073] wlan0: send auth to 00:1d:45:a6:30:f0 (try 1/3) [ 102.857132] wlan0: authenticated [ 102.861071] wlan0: associate with 00:1d:45:a6:30:f0 (try 1/3) [ 102.863211] wlan0: RX AssocResp from 00:1d:45:a6:30:f0 (capab=0x431 status=0 aid=211) [ 102.863226] wlan0: associated [ 102.868432] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready ** Tags removed: needs-upstream-testing -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/859171 Title: [ATI Radeon] System unresponsive for short time within Lightdm To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/859171/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs