Hello. I have noticed this bug of the driver when I copy a big gob of data to an USB/SD-Card mounted driver, with vfat filesystem: the screen turns off, and nothing can turn it on again. I can ssh into the machine, where everything is still running ok, so it's really a display problem. I can turn off the screen with xset dpms force off, it turns back on again correctly; I can use xscreensaver too. This is on a Gentoo laptop, with this chipset: # lspci 00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (primary) (rev 03) I have this in Xorg.0.log: [ 62.133] (II) LoadModule: "intel" [ 62.192] (II) Loading /usr/lib64/xorg/modules/drivers/intel_drv.so [ 62.235] (II) Module intel: vendor="X.Org Foundation" [ 62.235] compiled for 1.13.3, module version = 2.21.4 [ 62.235] Module class: X.Org Video Driver [ 62.235] ABI class: X.Org Video Driver, version 13.1 [ 62.241] (--) intel(0): Integrated Graphics Chipset: Intel(R) 965GM I don't know if any other info in /var/log/Xorg.0.log is relevant. In /var/log/messages, I found this dump: Mar 18 07:07:27 slick kernel: [ 8.293383] agpgart-intel 0000:00:00.0: Intel 965GM Chipset Mar 18 07:07:27 slick kernel: [ 8.293441] agpgart-intel 0000:00:00.0: detected gtt size: 524288K total, 262144K mappable Mar 18 07:07:27 slick kernel: [ 8.293938] agpgart-intel 0000:00:00.0: detected 8192K stolen memory Mar 18 07:07:27 slick kernel: [ 8.294159] agpgart-intel 0000:00:00.0: AGP aperture is 256M @ 0xe0000000 and also Mar 19 11:20:51 slick kernel: [ 752.186046] WARNING: at drivers/gpu/drm/i915/intel_display.c:1225 assert_pipe+0x70/0x75 [i915]() Mar 19 11:20:51 slick kernel: [ 752.186049] Hardware name: EasyNote_BG46-P-042FR Mar 19 11:20:51 slick kernel: [ 752.186051] pipe A assertion failure (expected on, current off) Mar 19 11:20:51 slick kernel: [ 752.186052] Modules linked in: hidp rfcomm ipv6 bnep af_packet vboxnetadp(O) vboxnetflt(O) vboxdrv(O) usb_storage btusb bluetooth i915 snd_hda_codec_realtek arc4 snd_hda_ intel r8169 snd_hda_codec fbcon bitblit iwl3945 softcursor font i2c_algo_bit snd_hwdep iwlegacy uhci_hcd intel_agp snd_pcm tileblit snd_page_alloc mac80211 drm_kms_helper snd_timer ehci_hcd snd drm intel _gtt usbcore cfg80211 soundcore i2c_core agpgart asus_laptop usb_common input_polldev sparse_keymap led_class acpi_cpufreq rfkill psmouse thermal mperf coretemp video processor thermal_sys rtc_cmos backl ight microcode battery ac hwmon evdev unix Mar 19 11:20:51 slick kernel: [ 752.186112] Pid: 2649, comm: X Tainted: G W O 3.7.1-tuxonice #1 Mar 19 11:20:51 slick kernel: [ 752.186114] Call Trace: Mar 19 11:20:51 slick kernel: [ 752.186120] [<ffffffff810357ef>] warn_slowpath_common+0x7e/0x96 Mar 19 11:20:51 slick kernel: [ 752.186124] [<ffffffff8103589b>] warn_slowpath_fmt+0x41/0x43 Mar 19 11:20:51 slick kernel: [ 752.186137] [<ffffffffa01e3b98>] assert_pipe+0x70/0x75 [i915] Mar 19 11:20:51 slick kernel: [ 752.186148] [<ffffffffa01e48aa>] intel_enable_plane+0x2f/0x70 [i915] Mar 19 11:20:51 slick kernel: [ 752.186160] [<ffffffffa01e4a2e>] i9xx_crtc_enable+0x143/0x1a0 [i915] Mar 19 11:20:51 slick kernel: [ 752.186172] [<ffffffffa01e82ac>] intel_crtc_update_dpms+0x54/0x6d [i915] Mar 19 11:20:51 slick kernel: [ 752.186184] [<ffffffffa01e8342>] intel_encoder_dpms+0x1e/0x20 [i915] Mar 19 11:20:51 slick kernel: [ 752.186196] [<ffffffffa01e94a0>] intel_connector_dpms+0x34/0x5a [i915] Mar 19 11:20:51 slick kernel: [ 752.186205] [<ffffffffa030e034>] drm_mode_obj_set_property_ioctl+0x181/0x215 [drm] Mar 19 11:20:51 slick kernel: [ 752.186214] [<ffffffffa030e0f3>] drm_mode_connector_property_set_ioctl+0x2b/0x2d [drm] Mar 19 11:20:51 slick kernel: [ 752.186221] [<ffffffffa0300676>] drm_ioctl+0x2c9/0x38b [drm] Mar 19 11:20:51 slick kernel: [ 752.186225] [<ffffffff81315549>] ? _raw_spin_unlock_irq+0x26/0x31 Mar 19 11:20:51 slick kernel: [ 752.186233] [<ffffffffa030e0c8>] ? drm_mode_obj_set_property_ioctl+0x215/0x215 [drm] Mar 19 11:20:51 slick kernel: [ 752.186237] [<ffffffff810125cc>] ? __restore_xstate_sig+0x2dc/0x2e0 Mar 19 11:20:51 slick kernel: [ 752.186241] [<ffffffff810112d8>] ? __switch_to_xtra+0x145/0x16e Mar 19 11:20:51 slick kernel: [ 752.186245] [<ffffffff81059641>] ? set_next_entity+0x3b/0x60 Mar 19 11:20:51 slick kernel: [ 752.186249] [<ffffffff810e1d2c>] do_vfs_ioctl+0x40d/0x44e Mar 19 11:20:51 slick kernel: [ 752.186252] [<ffffffff81080993>] ? do_raw_spin_unlock+0x9/0xd Mar 19 11:20:51 slick kernel: [ 752.186256] [<ffffffff81040be2>] ? recalc_sigpending+0x46/0x4a Mar 19 11:20:51 slick kernel: [ 752.186259] [<ffffffff8104124d>] ? __set_task_blocked+0x60/0x67 Mar 19 11:20:51 slick kernel: [ 752.186262] [<ffffffff810e1dc6>] sys_ioctl+0x59/0x7f Mar 19 11:20:51 slick kernel: [ 752.186266] [<ffffffff8104305c>] ? sigprocmask+0x5e/0x62 Mar 19 11:20:51 slick kernel: [ 752.186270] [<ffffffff813161ed>] system_call_fastpath+0x1a/0x1f Mar 19 11:20:51 slick kernel: [ 752.186272] ---[ end trace d4f758f48e7a9ae1 ]--- Mar 19 11:20:52 slick kernel: [ 753.240037] [drm:intel_enable_lvds] *ERROR* timed out waiting for panel to power on I hope this problem can be solved. Thanks. -- F. Delente
