| Summary: | Xorg issues on HP dm4 with Radeon HD 5000 chip multi-screen (regression as worked fine on Mandriva 2010.1) | ||
|---|---|---|---|
| Product: | Mageia | Reporter: | Bruno Cornec <bruno> |
| Component: | RPM Packages | Assignee: | Mageia Bug Squad <bugsquad> |
| Status: | RESOLVED OLD | QA Contact: | |
| Severity: | normal | ||
| Priority: | Normal | CC: | marja11, tmb |
| Version: | 1 | Keywords: | NEEDINFO |
| Target Milestone: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Source RPM: | kernel-desktop-2.6.38.8-8.mga-1-1.mga1 | CVE: | |
| Status comment: | |||
Can you please: add radeon.modeset=0 to the kernel command line, it will boot without kms Then when system is booted, remove the "radeon.modeset=0", install radeon-firmware from nonfree and do a: bootloader-config --action rebuild-initrds and it will recreate the initrd with the needed firmwares added If that solves the problem (please report back) then this is a duplicate of bug 1471 Keywords:
(none) =>
NEEDINFO @ Bruno, could you please reply to the previous question? If you won't reply within two weeks from now, I will have to close this bug as OLD. Thank you. Since there are insufficient details provided in this report for us to investigate the issue further, and we have not received feedback to the information we have requested above, we will assume the problem was not reproducible, or has been fixed in one of the updates we have released for the reporter's distribution. Users who have experienced this problem are encouraged to upgrade to the latest update of their distribution, and if this issue turns out to still be reproducible in the latest update, please reopen this bug with additional information. Closing as OLD. Status:
NEW =>
RESOLVED |
Description of problem: I have multiple new problems linked to Mageia 1 since my upgrade on this system, which were not occuring with Mandriva 2010.1. 1. The default configuration uses the fglrx driver (previously was intel) which is not working correctly in multi-screen mode (unable to use 2 different screens configurations, only mode working is clone). Trying the KDE config tool doesn't help, nor does using the aticonfig tool. 2. With the intel driver, Trying to suspend either with the menu or the pm-suspend command brings back the main screen as black. No way to activate it again. If I used the menu, then the lockscreen was activated and the other screen working is blocked when coming back on displaying a lockscreen image. Passing in console mode with Ctrl-Alt-F1 and killing the screen lock brings back that second screen (but still not the first). 3. For information, just using the kernel kernel-desktop-2.6.33.7-2mnb-1-1mnb2 as a boot option from the former Mandriva 2010.1 allows to have multi-screen working correctly, and suspend as well. Here is the xorg.conf which is working (From MDV 2010.1): Section "Extensions" Option "Composite" "Disable" EndSection Section "Monitor" Identifier "monitor1" VendorName "Generic" ModelName "Flat Panel 1366x768" HorizSync 31.5-53.0 VertRefresh 56.0-69.0 EndSection Section "Monitor" Identifier "monitor2" VendorName "Generic" ModelName "Flat Panel 1600x1200" HorizSync 31.5-74.7 VertRefresh 56.0-65.0 EndSection Section "Device" Identifier "device1" BoardName "ATI Radeon HD 2000 and later (radeon/fglrx)" Driver "intel" Screen 0 Option "DPMS" Option "SWCursor" EndSection Section "Device" Identifier "device2" VendorName "ATI Technologies Inc" BoardName "ATI Radeon HD 2000 and later (radeon/fglrx)" Driver "intel" Screen 0 BusID "PCI:1:0:0" Option "DPMS" EndSection Section "Screen" Identifier "screen1" Device "device1" Monitor "monitor1" DefaultColorDepth 24 EndSection Section "Screen" Identifier "screen2" Device "device2" Monitor "monitor2" DefaultColorDepth 24 EndSection # File generated by XFdrake (rev 262502) Section "ServerLayout" Identifier "aticonfig Layout" Screen "screen1" Screen "screen2" RightOf "screen1" Option "Xinerama" EndSection Section "Module" EndSection Section "ServerFlags" Option "Xinerama" "on" EndSection ------------------------------------------------- Here are the relevant lspcidrake diffs between Mageia 1 and Mandriva 2010.1 kernels: $ diff -u /tmp/lspcidrake.mdv /tmp/lspcidrake.mga --- /tmp/lspcidrake.mdv 2011-12-18 15:08:12.963998976 +0100 +++ /tmp/lspcidrake.mga 2011-12-18 14:46:05.852603393 +0100 @@ -4,11 +4,11 @@ unknown : Intel Corporation|Core Processor QPI Link 0 [BRIDGE_HOST] (rev: 02) unknown : Intel Corporation|Core Processor QuickPath Architecture System Address Decoder [BRIDGE_HOST] (rev: 02) unknown : Intel Corporation|Core Processor QuickPath Architecture Generic Non-core Registers [BRIDGE_HOST] (rev: 02) -wl : Broadcom Corporation|BCM4313 802.11b/g/n Wireless LAN Controller [NETWORK_OTHER] (rev: 01) +brcm80211 : Broadcom Corporation|BCM4313 802.11b/g/n Wireless LAN Controller [NETWORK_OTHER] (rev: 01) r8169 : Realtek Semiconductor Co., Ltd.|RTL8111/8168B PCI Express Gigabit Ethernet controller [NETWORK_ETHERNET] (rev: 03) snd_hda_intel : ATI Technologies Inc|Manhattan HDMI Audio [Mobility Radeon HD 5000 Series] Card:ATI Radeon HD 2000 and later (radeon/fglrx): ATI Technologies Inc|Manhattan [Mobility Radeon HD 5000 Series] [DISPLAY_VGA] -unknown : Intel Corporation|5 Series/3400 Series Chipset Thermal Subsystem [SP_OTHER] (rev: 05) +intel_ips : Intel Corporation|5 Series/3400 Series Chipset Thermal Subsystem [SP_OTHER] (rev: 05) i2c_i801 : Intel Corporation|5 Series/3400 Series Chipset SMBus Controller [SERIAL_SMBUS] (rev: 05) ahci : Intel Corporation|5 Series/3400 Series Chipset 4 port SATA AHCI Controller [STORAGE_SATA] (rev: 05) iTCO_wdt : Intel Corporation|Mobile 5 Series Chipset LPC Interface Controller [BRIDGE_ISA] (rev: 05) @@ -22,10 +22,10 @@ Card:Intel 810 and later: Intel Corporation|Core Processor Integrated Graphics Controller [DISPLAY_VGA] (rev: 02) shpchp : Intel Corporation|Core Processor PCI Express x16 Root Port [BRIDGE_PCI] (rev: 02) unknown : Intel Corporation|Core Processor DRAM Controller [BRIDGE_HOST] (rev: 02) -hub : Linux 2.6.33.7-desktop-2mnb ehci_hcd|EHCI Host Controller [Hub|Unused|Full speed (or root) hub] +hub : Linux 2.6.38.8-desktop-8.mga ehci_hcd|EHCI Host Controller [Hub|Unused|Full speed (or root) hub] hub : Intel Corp.|Integrated Rate Matching Hub [Hub|Unused|Full speed (or root) hub] uvcvideo : HP Webcam|HP Webcam [Video|Video Control] -hub : Linux 2.6.33.7-desktop-2mnb ehci_hcd|EHCI Host Controller [Hub|Unused|Full speed (or root) hub] +hub : Linux 2.6.38.8-desktop-8.mga ehci_hcd|EHCI Host Controller [Hub|Unused|Full speed (or root) hub] hub : Intel Corp.|Integrated Rate Matching Hub [Hub|Unused|Full speed (or root) hub] hub : NEC Corporation|USB2.0 Hub Controller [Hub|Unused|Full speed (or root) hub] usbhid : Primax Electronics, Ltd|USB Optical Mouse [Human Interface Device|Boot Interface Subclass|Mouse] ----------------------------------------------------------- Here are the messages generated when going into suspend mode on Mageia: PM: Syncing filesystems ... done. PM: Preparing system for mem sleep Freezing user space processes ... (elapsed 0.01 seconds) done. Freezing remaining freezable tasks ... (elapsed 0.01 seconds) done. PM: Entering mem sleep Suspending console(s) (use no_console_suspend to debug) sd 0:0:0:0: [sda] Synchronizing SCSI cache sd 0:0:0:0: [sda] Stopping disk brcm80211 0000:03:00.0: PCI INT A disabled pci 0000:00:1f.3: PCI INT C disabled ehci_hcd 0000:00:1a.0: PCI INT A disabled ehci_hcd 0000:00:1d.0: PCI INT A disabled HDA Intel 0000:01:00.1: PCI INT B disabled ACPI handle has no context! HDA Intel 0000:00:1b.0: PCI INT A disabled intel ips 0000:00:1f.6: MCP limit exceeded: Avg power 58196, limit 35000 PM: suspend of devices complete after 417.749 msecs r8169 0000:02:00.0: PME# enabled r8169 0000:02:00.0: wake-up capability enabled by ACPI PM: late suspend of devices complete after 37.946 msecs ACPI: Preparing to enter system sleep state S3 PM: Saving platform NVS memory Disabling non-boot CPUs ... CPU 1 is now offline CPU 2 is now offline Broke affinity for irq 20 CPU 3 is now offline Extended CMOS year: 2000 Back to C! PM: Restoring platform NVS memory CPU0: Thermal monitoring handled by SMI Extended CMOS year: 2000 Enabling non-boot CPUs ... Booting Node 0 Processor 1 APIC 0x1 CPU1: Thermal monitoring handled by SMI Switched to NOHz mode on CPU #1 ACPI Error: [NPSS] Namespace lookup failure, AE_NOT_FOUND (20110112/psargs-359) ACPI Error: Method parse/execution failed [\_PR_.CPU0.PPC_] (Node ffff88014fe96028), AE_NOT_FOUND (20110112/psparse-536) ACPI Error: Method parse/execution failed [\_PR_.CPU0._PPC] (Node ffff88014fe96168), AE_NOT_FOUND (20110112/psparse-536) ACPI Error: Method parse/execution failed [\_PR_.CPU1._PPC] (Node ffff88014fe961e0), AE_NOT_FOUND (20110112/psparse-536) CPU1 is up Booting Node 0 Processor 2 APIC 0x4 CPU2: Thermal monitoring handled by SMI Switched to NOHz mode on CPU #2 ACPI Error: [NPSS] Namespace lookup failure, AE_NOT_FOUND (20110112/psargs-359) ACPI Error: Method parse/execution failed [\_PR_.CPU0.PPC_] (Node ffff88014fe96028), AE_NOT_FOUND (20110112/psparse-536) ACPI Error: Method parse/execution failed [\_PR_.CPU0._PPC] (Node ffff88014fe96168), AE_NOT_FOUND (20110112/psparse-536) ACPI Error: Method parse/execution failed [\_PR_.CPU2._PPC] (Node ffff88014fe96348), AE_NOT_FOUND (20110112/psparse-536) CPU2 is up Booting Node 0 Processor 3 APIC 0x5 CPU3: Thermal monitoring handled by SMI Switched to NOHz mode on CPU #3 ACPI Error: [NPSS] Namespace lookup failure, AE_NOT_FOUND (20110112/psargs-359) ACPI Error: Method parse/execution failed [\_PR_.CPU0.PPC_] (Node ffff88014fe96028), AE_NOT_FOUND (20110112/psparse-536) ACPI Error: Method parse/execution failed [\_PR_.CPU0._PPC] (Node ffff88014fe96168), AE_NOT_FOUND (20110112/psparse-536) ACPI Error: Method parse/execution failed [\_PR_.CPU3._PPC] (Node ffff88014fe962a8), AE_NOT_FOUND (20110112/psparse-536) CPU3 is up ACPI: Waking up from system sleep state S3 pcieport 0000:00:01.0: restoring config space at offset 0x7 (was 0x20003030, writing 0x3030) pcieport 0000:00:01.0: restoring config space at offset 0x1 (was 0x100007, writing 0x100407) i915 0000:00:02.0: restoring config space at offset 0x1 (was 0x900007, writing 0x900407) pci 0000:00:16.0: restoring config space at offset 0x1 (was 0x180006, writing 0x100006) ehci_hcd 0000:00:1a.0: restoring config space at offset 0x1 (was 0x2900006, writing 0x2900002) HDA Intel 0000:00:1b.0: restoring config space at offset 0x1 (was 0x100006, writing 0x100002) pcieport 0000:00:1c.0: restoring config space at offset 0x7 (was 0x20002020, writing 0x2020) ehci_hcd 0000:00:1d.0: restoring config space at offset 0x1 (was 0x2900006, writing 0x2900002) pci 0000:00:1e.0: restoring config space at offset 0xa (was 0xffffffff, writing 0x0) ahci 0000:00:1f.2: restoring config space at offset 0x1 (was 0x2b00007, writing 0x2b00407) radeon 0000:01:00.0: restoring config space at offset 0x1 (was 0x100000, writing 0x100407) HDA Intel 0000:01:00.1: restoring config space at offset 0x1 (was 0x100007, writing 0x100003) r8169 0000:02:00.0: restoring config space at offset 0x1 (was 0x100007, writing 0x100407) brcm80211 0000:03:00.0: restoring config space at offset 0xf (was 0x100, writing 0x10a) brcm80211 0000:03:00.0: restoring config space at offset 0x4 (was 0x4, writing 0xc2400004) brcm80211 0000:03:00.0: restoring config space at offset 0x3 (was 0x0, writing 0x10) brcm80211 0000:03:00.0: restoring config space at offset 0x1 (was 0x100000, writing 0x100006) PM: early resume of devices complete after 0.848 msecs i915 0000:00:02.0: setting latency timer to 64 ehci_hcd 0000:00:1a.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 HDA Intel 0000:00:1b.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22 ehci_hcd 0000:00:1a.0: setting latency timer to 64 HDA Intel 0000:00:1b.0: setting latency timer to 64 HDA Intel 0000:00:1b.0: irq 45 for MSI/MSI-X ehci_hcd 0000:00:1d.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20 ehci_hcd 0000:00:1d.0: setting latency timer to 64 pci 0000:00:1e.0: setting latency timer to 64 HDA Intel 0000:01:00.1: PCI INT B -> GSI 17 (level, low) -> IRQ 17 HDA Intel 0000:01:00.1: setting latency timer to 64 HDA Intel 0000:01:00.1: irq 46 for MSI/MSI-X ahci 0000:00:1f.2: setting latency timer to 64 pci 0000:00:1f.3: PCI INT C -> GSI 19 (level, low) -> IRQ 19 radeon 0000:01:00.0: setting latency timer to 64 brcm80211 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17 brcm80211 0000:03:00.0: setting latency timer to 64 sd 0:0:0:0: [sda] Starting disk radeon 0000:01:00.0: WB enabled [drm] ring test succeeded in 1 usecs [drm] ib test succeeded in 0 usecs r8169 0000:02:00.0: wake-up capability disabled by ACPI r8169 0000:02:00.0: PME# disabled usb 2-1.6: reset high speed USB device using ehci_hcd and address 3 ata5: SATA link down (SStatus 0 SControl 300) ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300) ata2.00: configured for UDMA/100 usb 1-1.3: reset full speed USB device using ehci_hcd and address 4 btusb 1-1.3:1.0: no reset_resume for driver btusb? btusb 1-1.3:1.1: no reset_resume for driver btusb? usb 1-1.4: reset full speed USB device using ehci_hcd and address 5 ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata1.00: configured for UDMA/100 wl_ops_set_rts_threshold: Enter PM: resume of devices complete after 2897.120 msecs PM: Finishing wakeup. Restarting tasks ... done. video LNXVIDEO:00: Restoring backlight state video LNXVIDEO:01: Restoring backlight state r8169 0000:02:00.0: eth0: link down r8169 0000:02:00.0: eth0: link down ADDRCONF(NETDEV_UP): eth0: link is not ready ADDRCONF(NETDEV_UP): wlan0: link is not ready r8169 0000:02:00.0: eth0: link up ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready ata1.00: configured for UDMA/100 ata1: EH complete EXT4-fs (sda5): re-mounted. Opts: acl,commit=0 EXT4-fs (sda7): re-mounted. Opts: acl,commit=0 ------------------------------------------------------ Here is the same successful sequence for tthe Mandriva kernel: PM: Syncing filesystems ... done. PM: Preparing system for mem sleep Freezing user space processes ... (elapsed 0.01 seconds) done. Freezing remaining freezable tasks ... (elapsed 0.01 seconds) done. PM: Entering mem sleep Suspending console(s) (use no_console_suspend to debug) btusb_intr_complete: hci0 urb ffff88014ab56f00 failed to resubmit (1) btusb_bulk_complete: hci0 urb ffff88014ab56d80 failed to resubmit (1) btusb_bulk_complete: hci0 urb ffff88014ab56900 failed to resubmit (1) sd 0:0:0:0: [sda] Synchronizing SCSI cache sd 0:0:0:0: [sda] Stopping disk HDA Intel 0000:01:00.1: PCI INT B disabled ACPI handle has no context! pci 0000:00:1f.3: PCI INT C disabled ehci_hcd 0000:00:1d.0: PCI INT A disabled HDA Intel 0000:00:1b.0: PCI INT A disabled ehci_hcd 0000:00:1a.0: PCI INT A disabled PM: suspend of devices complete after 904.544 msecs r8169 0000:02:00.0: PME# enabled r8169 0000:02:00.0: wake-up capability enabled by ACPI PM: late suspend of devices complete after 38.073 msecs ACPI: Preparing to enter system sleep state S3 Disabling non-boot CPUs ... CPU 1 is now offline CPU 2 is now offline Broke affinity for irq 20 CPU 3 is now offline SMP alternatives: switching to UP code Extended CMOS year: 2000 Back to C! CPU0: Thermal monitoring handled by SMI Extended CMOS year: 2000 Enabling non-boot CPUs ... SMP alternatives: switching to SMP code Booting Node 0 Processor 1 APIC 0x1 CPU1: Thermal monitoring handled by SMI CPU 1 MCA banks CMCI:2 CMCI:3 CMCI:5 CMCI:6 ACPI Error (psargs-0359): [NPSS] Namespace lookup failure, AE_NOT_FOUND ACPI Error (psparse-0537): Method parse/execution failed [\_PR_.CPU0.PPC_] (Node ffff88015517d560), AE_NOT_FOUND ACPI Error (psparse-0537): Method parse/execution failed [\_PR_.CPU0._PPC] (Node ffff88015517d480), AE_NOT_FOUND ACPI Error (psparse-0537): Method parse/execution failed [\_PR_.CPU1._PPC] (Node ffff88014ce78020), AE_NOT_FOUND CPU1 is up Booting Node 0 Processor 2 APIC 0x4 CPU2: Thermal monitoring handled by SMI CPU 2 MCA banks SHD:6 ACPI Error (psargs-0359): [NPSS] Namespace lookup failure, AE_NOT_FOUND ACPI Error (psparse-0537): Method parse/execution failed [\_PR_.CPU0.PPC_] (Node ffff88015517d560), AE_NOT_FOUND ACPI Error (psparse-0537): Method parse/execution failed [\_PR_.CPU0._PPC] (Node ffff88015517d480), AE_NOT_FOUND ACPI Error (psparse-0537): Method parse/execution failed [\_PR_.CPU2._PPC] (Node ffff88014ce78180), AE_NOT_FOUND CPU2 is up Booting Node 0 Processor 3 APIC 0x5 CPU3: Thermal monitoring handled by SMI CPU 3 MCA banks CMCI:2 CMCI:3 CMCI:5 SHD:6 ACPI Error (psargs-0359): [NPSS] Namespace lookup failure, AE_NOT_FOUND ACPI Error (psparse-0537): Method parse/execution failed [\_PR_.CPU0.PPC_] (Node ffff88015517d560), AE_NOT_FOUND ACPI Error (psparse-0537): Method parse/execution failed [\_PR_.CPU0._PPC] (Node ffff88015517d480), AE_NOT_FOUND ACPI Error (psparse-0537): Method parse/execution failed [\_PR_.CPU3._PPC] (Node ffff88014ce78100), AE_NOT_FOUND CPU3 is up ACPI: Waking up from system sleep state S3 pcieport 0000:00:01.0: restoring config space at offset 0x7 (was 0x20003030, writing 0x3030) pcieport 0000:00:01.0: restoring config space at offset 0x1 (was 0x100007, writing 0x100407) i915 0000:00:02.0: restoring config space at offset 0x1 (was 0x900007, writing 0x900407) pci 0000:00:16.0: restoring config space at offset 0x1 (was 0x180006, writing 0x100006) ehci_hcd 0000:00:1a.0: restoring config space at offset 0x1 (was 0x2900006, writing 0x2900002) HDA Intel 0000:00:1b.0: restoring config space at offset 0x1 (was 0x100006, writing 0x100002) pcieport 0000:00:1c.0: restoring config space at offset 0x7 (was 0x20002020, writing 0x2020) pcieport 0000:00:1c.0: restoring config space at offset 0x1 (was 0x100007, writing 0x100407) pcieport 0000:00:1c.1: restoring config space at offset 0x1 (was 0x100007, writing 0x100407) ehci_hcd 0000:00:1d.0: restoring config space at offset 0x1 (was 0x2900006, writing 0x2900002) pci 0000:00:1e.0: restoring config space at offset 0xa (was 0xffffffff, writing 0x0) ahci 0000:00:1f.2: restoring config space at offset 0x1 (was 0x2b00007, writing 0x2b00407) HDA Intel 0000:01:00.1: restoring config space at offset 0x1 (was 0x100007, writing 0x100003) r8169 0000:02:00.0: restoring config space at offset 0x1 (was 0x100007, writing 0x100407) pci 0000:03:00.0: restoring config space at offset 0xf (was 0x100, writing 0x10a) pci 0000:03:00.0: restoring config space at offset 0x4 (was 0x4, writing 0xc2400004) pci 0000:03:00.0: restoring config space at offset 0x3 (was 0x0, writing 0x10) pci 0000:03:00.0: restoring config space at offset 0x1 (was 0x100000, writing 0x100006) PM: early resume of devices complete after 0.886 msecs i915 0000:00:02.0: setting latency timer to 64 ehci_hcd 0000:00:1a.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 ehci_hcd 0000:00:1a.0: setting latency timer to 64 HDA Intel 0000:00:1b.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22 HDA Intel 0000:00:1b.0: setting latency timer to 64 HDA Intel 0000:00:1b.0: irq 30 for MSI/MSI-X ehci_hcd 0000:00:1d.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20 ehci_hcd 0000:00:1d.0: setting latency timer to 64 pci 0000:00:1e.0: setting latency timer to 64 ahci 0000:00:1f.2: setting latency timer to 64 pci 0000:00:1f.3: PCI INT C -> GSI 19 (level, low) -> IRQ 19 HDA Intel 0000:01:00.1: PCI INT B -> GSI 17 (level, low) -> IRQ 17 HDA Intel 0000:01:00.1: setting latency timer to 64 HDA Intel 0000:01:00.1: irq 31 for MSI/MSI-X r8169 0000:02:00.0: wake-up capability disabled by ACPI r8169 0000:02:00.0: PME# disabled sd 0:0:0:0: [sda] Starting disk ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300) ata5: SATA link down (SStatus 0 SControl 300) ata2.00: configured for UDMA/100 ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata1.00: configured for UDMA/100 usb 2-1.6: reset high speed USB device using ehci_hcd and address 3 usb 1-1.4: reset full speed USB device using ehci_hcd and address 4 usb 1-1.3: reset full speed USB device using ehci_hcd and address 7 btusb 1-1.3:1.0: no reset_resume for driver btusb? btusb 1-1.3:1.1: no reset_resume for driver btusb? PM: resume of devices complete after 4113.505 msecs PM: Finishing wakeup. Restarting tasks ... done. lo: Disabled Privacy Extensions r8169: eth0: link up ata1.00: configured for UDMA/100 ata1: EH complete ---------------------------------------------------------- When doing a diff on these 2 dmesg results, it seems to me that tese lines could provide explanations of the difference of behaviour: $ diff -u /tmp/dmesg.mdv /tmp/dmesg.mga [...] +radeon 0000:01:00.0: restoring config space at offset 0x1 (was 0x100000, writing 0x100407) [...] +radeon 0000:01:00.0: WB enabled [...] +video LNXVIDEO:00: Restoring backlight state +video LNXVIDEO:01: Restoring backlight state So for the moment I have to stay with the previous kernel to have a working environment.