Mageia forum

I installed Mageia 5 fresh and then immediately updated it (4.1.15-desktop-2.mga5). After the update I saw this error message during boot:

Code: Select all

[drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo underrun on pch transcoder A
[drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun

I suspect this may be related to the following graphical problems:
- touchpad freezes on resume after sleep requiring new login
- some screen flickering
- When I try to set up the graphical server, the test fails and gives me the underrun error above (both when I use the Mageia-proposed settings for the graphical server or try any other setting)

Laptop: Sony Vaio SVE15 series (apparently Intel HD Graphics 4000).

I used Mageia 1 and 4 without these problems. This is my first time posting to the forum....thanks!

EDIT: Added code tags
Germ

Please show the output of

Code: Select all

grep -i driver /var/log/Xorg.0.log
lspcidrake -v

Here's the output. Oh, the screen flickering starts after a few minutes of idle state, when it dims to 12%, before going black (on battery).

Code: Select all

[root@localhost valeriematarese]# grep -i driver /var/log/Xorg.0.log
[ 28313.346]    X.Org Video Driver: 18.0
[ 28313.346]    X.Org XInput driver : 21.0
[ 28313.349] (II) Loading /usr/lib64/xorg/modules/drivers/v4l_drv.so
[ 28313.349]    ABI class: X.Org Video Driver, version 18.0
[ 28313.350] (II) Loading /usr/lib64/xorg/modules/drivers/intel_drv.so
[ 28313.350]    Module class: X.Org Video Driver
[ 28313.350]    ABI class: X.Org Video Driver, version 18.0
[ 28313.350] (II) v4l driver for Video4Linux
[ 28313.350] (II) intel: Driver for Intel(R) Integrated Graphics Chipsets:
[ 28313.350] (II) intel: Driver for Intel(R) HD Graphics: 2000-6000
[ 28313.350] (II) intel: Driver for Intel(R) Iris(TM) Graphics: 5100, 6100
[ 28313.350] (II) intel: Driver for Intel(R) Iris(TM) Pro Graphics: 5200, 6200, P6300
[ 28313.350] (II) intel(0): Using Kernel Mode Setting driver: i915, version 1.6.0 20150327
[ 28313.419] (II) intel(0): [DRI2]   DRI driver: i965
[ 28313.419] (II) intel(0): [DRI2]   VDPAU driver: va_gl
[ 28313.495]    Module class: X.Org XInput Driver
[ 28313.495]    ABI class: X.Org XInput driver, version 21.0
[ 28313.495] (II) Using input driver 'evdev' for 'Power Button'
[ 28313.514] (II) Using input driver 'evdev' for 'Video Bus'
[ 28313.514] (II) Using input driver 'evdev' for 'Sony Vaio Keys'
[ 28313.515] (II) No input driver specified, ignoring this device.
[ 28313.515] (II) No input driver specified, ignoring this device.
[ 28313.515] (II) Using input driver 'evdev' for 'Power Button'
[ 28313.516] (II) No input driver specified, ignoring this device.
[ 28313.516] (II) Using input driver 'evdev' for 'USB2.0 Camera'
[ 28313.517] (II) No input driver specified, ignoring this device.
[ 28313.517] (II) No input driver specified, ignoring this device.
[ 28313.517] (II) No input driver specified, ignoring this device.
[ 28313.517] (II) No input driver specified, ignoring this device.
[ 28313.517] (II) Using input driver 'evdev' for 'AT Translated Set 2 keyboard'
[ 28313.518]    Module class: X.Org XInput Driver
[ 28313.518]    ABI class: X.Org XInput driver, version 21.0
[ 28313.518] (II) Using input driver 'synaptics' for 'SynPS/2 Synaptics TouchPad'
[ 28313.560] (II) No input driver specified, ignoring this device.
[root@localhost valeriematarese]# lspcidrake -v
r8169           : Realtek Semiconductor Co., Ltd.|RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [NETWORK_ETHERNET] (vendor:10ec device:8168 subv:104d subd:90ab) (rev: 07)
rtsx_pci        : Realtek Semiconductor Co., Ltd.|RTS5209 PCI Express Card Reader (vendor:10ec device:5209 subv:104d subd:90ab) (rev: 01)
ath9k           : Qualcomm Atheros|AR9485 Wireless Network Adapter [NETWORK_OTHER] (vendor:168c device:0032 subv:105b subd:e044) (rev: 01)
i2c_i801        : Intel Corporation|7 Series/C210 Series Chipset Family SMBus Controller [SERIAL_SMBUS] (vendor:8086 device:1e22 subv:104d subd:90ab) (rev: 04)
unknown         : Intel Corporation|7 Series Chipset Family 6-port SATA Controller [AHCI mode] [STORAGE_SATA] (vendor:8086 device:1e03 subv:104d subd:90ab) (rev: 04)
lpc_ich         : Intel Corporation|HM76 Express Chipset LPC Controller [BRIDGE_ISA] (vendor:8086 device:1e59 subv:104d subd:90ab) (rev: 04)
ehci_pci        : Intel Corporation|7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 [SERIAL_USB] (vendor:8086 device:1e26 subv:104d subd:90ab) (rev: 04)
shpchp          : Intel Corporation|7 Series/C210 Series Chipset Family PCI Express Root Port 3 [BRIDGE_PCI] (vendor:8086 device:1e14) (rev: c4)
shpchp          : Intel Corporation|7 Series/C210 Series Chipset Family PCI Express Root Port 2 [BRIDGE_PCI] (vendor:8086 device:1e12) (rev: c4)
shpchp          : Intel Corporation|7 Series/C210 Series Chipset Family PCI Express Root Port 1 [BRIDGE_PCI] (vendor:8086 device:1e10) (rev: c4)
snd_hda_intel   : Intel Corporation|7 Series/C210 Series Chipset Family High Definition Audio Controller [MULTIMEDIA_AUDIO_DEV] (vendor:8086 device:1e20 subv:104d subd:90ab) (rev: 04)
ehci_pci        : Intel Corporation|7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 [SERIAL_USB] (vendor:8086 device:1e2d subv:104d subd:90ab) (rev: 04)
mei_me          : Intel Corporation|7 Series/C210 Series Chipset Family MEI Controller #1 [COMMUNICATION_OTHER] (vendor:8086 device:1e3a subv:104d subd:90ab) (rev: 04)
xhci_pci        : Intel Corporation|7 Series/C210 Series Chipset Family USB xHCI Host Controller [SERIAL_USB] (vendor:8086 device:1e31 subv:104d subd:90ab) (rev: 04)
Card:Intel 810 and later: Intel Corporation|3rd Gen Core processor Graphics Controller [DISPLAY_VGA] (vendor:8086 device:0166 subv:104d subd:90ab) (rev: 09)
unknown         : Intel Corporation|3rd Gen Core processor DRAM Controller [BRIDGE_HOST] (vendor:8086 device:0154 subv:104d subd:90ab) (rev: 09)
hub             : Linux 4.1.15-desktop-2.mga5 xhci-hcd|xHCI Host Controller [Hub|Unused|Full speed (or root) hub] (vendor:1d6b device:0003)
hub             : Linux 4.1.15-desktop-2.mga5 xhci-hcd|xHCI Host Controller [Hub|Unused|Full speed (or root) hub] (vendor:1d6b device:0002)
hub             : Linux 4.1.15-desktop-2.mga5 ehci_hcd|EHCI Host Controller [Hub|Unused|Full speed (or root) hub] (vendor:1d6b device:0002)
hub             : Intel Corp.|Integrated Rate Matching Hub [Hub|Unused|Full speed (or root) hub] (vendor:8087 device:0024)
hub             : Linux 4.1.15-desktop-2.mga5 ehci_hcd|EHCI Host Controller [Hub|Unused|Full speed (or root) hub] (vendor:1d6b device:0002)
hub             : Intel Corp.|Integrated Rate Matching Hub [Hub|Unused|Full speed (or root) hub] (vendor:8087 device:0024)
btusb           : Atheros Communications|Bluetooth USB Host Controller [Wireless|Radio Frequency|Bluetooth] (vendor:0489 device:e036)
uvcvideo        : Chicony Electronics Co.,Ltd.|USB2.0 Camera [Video|Video Control] (vendor:04f2 device:b32f)


Hello vmatarese2016,

there are currently 2 open bug reports for this, the fifo underrun:

https://bugs.mageia.org/show_bug.cgi?id=14867
https://bugs.mageia.org/show_bug.cgi?id=14869

You are welcome to add to which-ever applies to you,

vmatarese2016 wrote:Card:Intel 810 and later: Intel Corporation|3rd Gen Core processor Graphics Controller [DISPLAY_VGA]

I have the same graphics but run a desktop system.

best regards

Benmc

Link to upstream kernel bug report.
https://bugzilla.kernel.org/show_bug.cgi?id=79261