Package: linux-2.6 Version: 2.6.32-41 Severity: important Tags: upstream patch
Hi, I've encountered a nasty bug in the drm/i915 part of Debian's stable kernel. The code is also present in 2.6.33.20, which is the latest stable upstream release of 2.6.33.y at the time of writing. During a refactoring of the i915 driver a regression has been introduced (http://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=commit;h=e70236a8d3d0a4c100a0b9f7d394d9bda9c56aca): For some chipsets the wrong fifo size is determined which results in lot's of pixel errors when starting the xserver and choosing 800x600 as a resolution. If another resolution is used (eg. 1024x768 or 1280x1024), I don't encounter this problem. I've attached a patch that fixes the problem (no pixel errors anymore) and determines the correct fifo size. --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -4828,15 +4828,15 @@ static void intel_init_display(struct drm_device *dev) dev_priv->display.update_wm = i965_update_wm; else if (IS_I9XX(dev) || IS_MOBILE(dev)) { dev_priv->display.update_wm = i9xx_update_wm; - dev_priv->display.get_fifo_size = i9xx_get_fifo_size; - } else { if (IS_I85X(dev)) dev_priv->display.get_fifo_size = i85x_get_fifo_size; else if (IS_845G(dev)) dev_priv->display.get_fifo_size = i845_get_fifo_size; else - dev_priv->display.get_fifo_size = i830_get_fifo_size; + dev_priv->display.get_fifo_size = i9xx_get_fifo_size; + } else { dev_priv->display.update_wm = i830_update_wm; + dev_priv->display.get_fifo_size = i830_get_fifo_size; } } Regards, Lukas -- Package-specific info: ** Version: Linux version 2.6.32-5-686 (Debian 2.6.32-41) ([email protected]) (gcc version 4.3.5 (Debian 4.3.5-4) ) #1 SMP Mon Jan 16 16:04:25 UTC 2012 ** Command line: BOOT_IMAGE=/boot/vmlinuz-2.6.32-5-686 root=UUID=08a419ad-d4d1-47ff-94fd-6d7c8c5321de ro quiet ** Not tainted ** Kernel log: [ 1.637921] sd 0:0:0:0: [sda] 8027712 512-byte logical blocks: (4.11 GB/3.82 GiB) [ 1.638005] sd 0:0:0:0: [sda] Write Protect is off [ 1.638010] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 [ 1.638045] sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA [ 1.638258] sda: sda1 sda2 [ 1.639892] sd 0:0:0:0: [sda] Attached SCSI disk [ 1.740461] usb 1-1: new full speed USB device using uhci_hcd and address 2 [ 1.744283] kjournald starting. Commit interval 5 seconds [ 1.744299] EXT3-fs: mounted filesystem with ordered data mode. [ 1.897098] usb 1-1: New USB device found, idVendor=1a40, idProduct=0201 [ 1.897104] usb 1-1: New USB device strings: Mfr=0, Product=1, SerialNumber=0 [ 1.897109] usb 1-1: Product: USB 2.0 Hub [MTT] [ 1.897256] usb 1-1: configuration #1 chosen from 1 choice [ 1.900120] hub 1-1:1.0: USB hub found [ 1.902075] hub 1-1:1.0: 7 ports detected [ 2.006518] udev[254]: starting version 164 [ 2.020066] usb 1-2: new full speed USB device using uhci_hcd and address 3 [ 2.194232] usb 1-2: New USB device found, idVendor=9710, idProduct=7830 [ 2.194239] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 2.194244] usb 1-2: Product: USB-MAC Controller [ 2.194247] usb 1-2: Manufacturer: Moschip Semiconductor [ 2.194251] usb 1-2: SerialNumber: 3b00043d [ 2.194414] usb 1-2: configuration #1 chosen from 1 choice [ 2.274033] usb 1-1.2: new full speed USB device using uhci_hcd and address 4 [ 2.350298] pci_hotplug: PCI Hot Plug PCI Core version: 0.5 [ 2.388923] input: PC Speaker as /devices/platform/pcspkr/input/input0 [ 2.403022] Marking TSC unstable due to TSC halts in idle [ 2.405028] processor LNXCPU:00: registered as cooling_device1 [ 2.419214] Switching to clocksource acpi_pm [ 2.456113] intel_rng: FWH not detected [ 2.470309] ACPI: AC Adapter [ADP1] (off-line) [ 2.470506] input: Power Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input1 [ 2.470522] ACPI: Power Button [PWRB] [ 2.470618] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input2 [ 2.470624] ACPI: Power Button [PWRF] [ 2.488242] i801_smbus 0000:00:1f.3: PCI INT B -> GSI 17 (level, low) -> IRQ 17 [ 2.499895] shpchp: Standard Hot Plug PCI Controller Driver version: 0.4 [ 2.529165] usb 1-1.3: new low speed USB device using uhci_hcd and address 5 [ 2.542981] usb 1-2: applying rev.C fixup [ 2.549198] usb 1-2: applying rev.C fixup [ 2.561229] eth1: register 'MOSCHIP usb-ethernet driver' at usb-0000:00:1d.0-2, MOSCHIP 7830/7730 usb-NET adapter, 00:13:3b:00:04:3d [ 2.561269] usbcore: registered new interface driver MOSCHIP usb-ethernet driver [ 2.618157] [drm] Initialized drm 1.1.0 20060810 [ 2.714449] i915 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [ 2.714459] i915 0000:00:02.0: setting latency timer to 64 [ 2.719367] [drm] set up 3M of stolen space [ 2.786929] usb 1-1.4: new low speed USB device using uhci_hcd and address 6 [ 2.810044] [drm] initialized overlay support [ 3.017929] usb 1-1.4: New USB device found, idVendor=046d, idProduct=c312 [ 3.017936] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 3.017941] usb 1-1.4: Product: USB Multimedia Keyboard [ 3.017945] usb 1-1.4: Manufacturer: LITEON Technology [ 3.018172] usb 1-1.4: configuration #1 chosen from 1 choice [ 3.064696] usbcore: registered new interface driver usbserial [ 3.065060] USB Serial support registered for generic [ 3.065322] usbcore: registered new interface driver usbserial_generic [ 3.065325] usbserial: USB Serial Driver core [ 3.105820] Console: switching to colour frame buffer device 160x64 [ 3.106212] USB Serial support registered for FTDI USB Serial Device [ 3.120640] fb0: inteldrmfb frame buffer device [ 3.120643] registered panic notifier [ 3.131269] usb 1-1.2: FTDI USB Serial Device converter now attached to ttyUSB0 [ 3.131332] usbcore: registered new interface driver ftdi_sio [ 3.131336] ftdi_sio: v1.5.0:USB FTDI Serial Converters Driver [ 3.134135] usbcore: registered new interface driver hiddev [ 3.137738] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0 [ 3.137813] Intel ICH 0000:00:1f.5: PCI INT B -> GSI 17 (level, low) -> IRQ 17 [ 3.137849] Intel ICH 0000:00:1f.5: setting latency timer to 64 [ 3.149671] input: LITEON Technology USB Multimedia Keyboard as /devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.4/1-1.4:1.0/input/input3 [ 3.149953] generic-usb 0003:046D:C312.0001: input,hidraw0: USB HID v1.10 Keyboard [LITEON Technology USB Multimedia Keyboard] on usb-0000:00:1d.0-1.4/input0 [ 3.150007] usbcore: registered new interface driver usbhid [ 3.150305] usbhid: v2.6:USB HID core driver [ 3.460056] intel8x0_measure_ac97_clock: measured 54690 usecs (2635 samples) [ 3.460062] intel8x0: clocking to 48000 [ 3.765560] Adding 524280k swap on /dev/sda2. Priority:-1 extents:1 across:524280k [ 3.845241] EXT3 FS on sda1, internal journal [ 4.165025] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 4.168163] e100: eth0 NIC Link is Up 100 Mbps Full Duplex [ 4.168463] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 7.849201] [drm:intel_crtc_mode_set] *ERROR* Couldn't find PLL settings for mode! [ 7.849209] [drm:drm_crtc_helper_set_config] *ERROR* failed to set mode on crtc ce96d000 [ 14.552037] eth0: no IPv6 routers present ** Model information not available ** Loaded modules: Module Size Used by usbhid 28016 0 ftdi_sio 28887 0 hid 50909 1 usbhid usbserial 22100 1 ftdi_sio snd_intel8x0 19595 2 snd_ac97_codec 79200 1 snd_intel8x0 ac97_bus 710 1 snd_ac97_codec snd_pcm 47226 2 snd_intel8x0,snd_ac97_codec snd_seq 35463 0 i915 223022 1 snd_timer 12270 2 snd_pcm,snd_seq drm_kms_helper 18569 1 i915 snd_seq_device 3673 1 snd_seq drm 111992 2 i915,drm_kms_helper i2c_algo_bit 3493 1 i915 snd 34423 10 snd_intel8x0,snd_ac97_codec,snd_pcm,snd_seq,snd_timer,snd_seq_device mcs7830 4077 0 shpchp 21200 0 i2c_i801 6462 0 evdev 5609 0 video 14605 1 i915 usbnet 9527 1 mcs7830 soundcore 3450 1 snd psmouse 44809 0 ac 1640 0 button 3598 1 i915 processor 26327 1 pcspkr 1207 0 i2c_core 12787 5 i915,drm_kms_helper,drm,i2c_algo_bit,i2c_i801 snd_page_alloc 5045 2 snd_intel8x0,snd_pcm rng_core 2178 0 serio_raw 2916 0 output 1204 1 video pci_hotplug 18545 1 shpchp ext3 94396 1 jbd 32401 1 ext3 mbcache 3762 1 ext3 sd_mod 26013 3 crc_t10dif 1012 1 sd_mod ata_generic 2247 0 fan 2586 0 ata_piix 17736 2 thermal 9206 0 uhci_hcd 16057 0 libata 115889 2 ata_generic,ata_piix e100 22317 0 ehci_hcd 28689 0 thermal_sys 9378 4 video,processor,fan,thermal usbcore 99329 9 usbhid,ftdi_sio,usbserial,mcs7830,usbnet,uhci_hcd,ehci_hcd mii 2714 3 mcs7830,usbnet,e100 scsi_mod 105001 2 sd_mod,libata nls_base 4541 1 usbcore ** PCI devices: 00:00.0 Host bridge [0600]: Intel Corporation 82852/82855 GM/GME/PM/GMV Processor to I/O Controller [8086:3580] (rev 02) Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx- Latency: 0 Region 0: Memory at <unassigned> (32-bit, prefetchable) Capabilities: [40] Vendor Specific Information: Len=05 <?> Kernel driver in use: agpgart-intel 00:00.1 System peripheral [0880]: Intel Corporation 82852/82855 GM/GME/PM/GMV Processor to I/O Controller [8086:3584] (rev 02) Subsystem: Intel Corporation 82852/82855 GM/GME/PM/GMV Processor to I/O Controller [8086:3584] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 00:00.3 System peripheral [0880]: Intel Corporation 82852/82855 GM/GME/PM/GMV Processor to I/O Controller [8086:3585] (rev 02) Subsystem: Intel Corporation 82852/82855 GM/GME/PM/GMV Processor to I/O Controller [8086:3585] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 00:02.0 VGA compatible controller [0300]: Intel Corporation 82852/855GM Integrated Graphics Device [8086:3582] (rev 02) (prog-if 00 [VGA controller]) Subsystem: Intel Corporation 82852/855GM Integrated Graphics Device [8086:3582] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 16 Region 0: Memory at f0000000 (32-bit, prefetchable) [size=128M] Region 1: Memory at ffa80000 (32-bit, non-prefetchable) [size=512K] Region 2: I/O ports at ec00 [size=8] Expansion ROM at <unassigned> [disabled] Capabilities: [d0] Power Management version 1 Flags: PMEClk- DSI+ D1+ D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Kernel driver in use: i915 00:1d.0 USB Controller [0c03]: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 [8086:24c2] (rev 02) (prog-if 00 [UHCI]) Subsystem: Intel Corporation Device [8086:24c0] Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 16 Region 4: I/O ports at e080 [size=32] Kernel driver in use: uhci_hcd 00:1d.1 USB Controller [0c03]: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2 [8086:24c4] (rev 02) (prog-if 00 [UHCI]) Subsystem: Intel Corporation Device [8086:24c0] Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin B routed to IRQ 19 Region 4: I/O ports at e400 [size=32] Kernel driver in use: uhci_hcd 00:1e.0 PCI bridge [0604]: Intel Corporation 82801 PCI Bridge [8086:244e] (rev 82) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR+ INTx- Latency: 0 Bus: primary=00, secondary=01, subordinate=01, sec-latency=64 I/O behind bridge: 0000d000-0000dfff Memory behind bridge: ff800000-ff8fffff Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- <SERR- <PERR- BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- 00:1f.0 ISA bridge [0601]: Intel Corporation 82801DB/DBL (ICH4/ICH4-L) LPC Interface Bridge [8086:24c0] (rev 02) Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 00:1f.1 IDE interface [0101]: Intel Corporation 82801DB (ICH4) IDE Controller [8086:24cb] (rev 02) (prog-if 8a [Master SecP PriP]) Subsystem: Intel Corporation Device [8086:24c0] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 18 Region 0: I/O ports at 01f0 [size=8] Region 1: I/O ports at 03f4 [size=1] Region 2: I/O ports at 0170 [size=8] Region 3: I/O ports at 0374 [size=1] Region 4: I/O ports at fc00 [size=16] Region 5: Memory at 10000000 (32-bit, non-prefetchable) [size=1K] Kernel driver in use: ata_piix 00:1f.3 SMBus [0c05]: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) SMBus Controller [8086:24c3] (rev 02) Subsystem: Intel Corporation Device [8086:24c0] Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Interrupt: pin B routed to IRQ 17 Region 4: I/O ports at 0400 [size=32] Kernel driver in use: i801_smbus 00:1f.5 Multimedia audio controller [0401]: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller [8086:24c5] (rev 02) Subsystem: Device [414c:4760] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin B routed to IRQ 17 Region 0: I/O ports at e800 [size=256] Region 1: I/O ports at e480 [size=64] Region 2: Memory at ffa7bc00 (32-bit, non-prefetchable) [size=512] Region 3: Memory at ffa7b800 (32-bit, non-prefetchable) [size=256] Capabilities: [50] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Kernel driver in use: Intel ICH 01:08.0 Ethernet controller [0200]: Intel Corporation 82801DB PRO/100 VE (CNR) Ethernet Controller [8086:103a] (rev 82) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 64 (2000ns min, 14000ns max), Cache Line Size: 32 bytes Interrupt: pin A routed to IRQ 20 Region 0: Memory at ff8ff000 (32-bit, non-prefetchable) [size=4K] Region 1: I/O ports at dc00 [size=64] Capabilities: [dc] Power Management version 2 Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=2 PME- Kernel driver in use: e100 ** USB devices: Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 006: ID 046d:c312 Logitech, Inc. DeLuxe 250 Keyboard Bus 001 Device 002: ID 1a40:0201 TERMINUS TECHNOLOGY INC. Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub -- System Information: Debian Release: 6.0.4 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: i386 (i686) Kernel: Linux 2.6.32-5-686 (SMP w/1 CPU core) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages linux-image-2.6.32-5-686 depends on: ii debconf [debconf-2.0] 1.5.36.1 Debian configuration management sy ii initramfs-tools [linux-initra 0.98.8 tools for generating an initramfs ii linux-base 2.6.32-41 Linux image base package ii module-init-tools 3.12-2+b1 tools for managing Linux kernel mo Versions of packages linux-image-2.6.32-5-686 recommends: ii firmware-linux-free 2.6.32-41 Binary firmware for various driver pn libc6-i686 <none> (no description available) Versions of packages linux-image-2.6.32-5-686 suggests: pn grub | lilo <none> (no description available) pn linux-doc-2.6.32 <none> (no description available) Versions of packages linux-image-2.6.32-5-686 is related to: pn firmware-bnx2 <none> (no description available) pn firmware-bnx2x <none> (no description available) pn firmware-ipw2x00 <none> (no description available) pn firmware-ivtv <none> (no description available) pn firmware-iwlwifi <none> (no description available) ii firmware-linux 0.28+squeeze1 Binary firmware for various driver ii firmware-linux-nonfree 0.28+squeeze1 Binary firmware for various driver pn firmware-qlogic <none> (no description available) pn firmware-ralink <none> (no description available) pn xen-hypervisor <none> (no description available) -- debconf information excluded -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: http://lists.debian.org/20120229130302.1073.51709.reportbug@localhost
