Bug #37
closedx220/native graphics: after some time the display shows only a one color blur image.
0%
Description
After some time the display goes into a one color blur mode.
Everything but the display continues to work. Changing to another tty doesn't help.
Workaround: suspend/resume
[22770.401257] [drm:intel_set_pch_fifo_underrun_reporting [i915]] ERROR uncleared pch fifo underrun on pch transcoder A
Files
Updated by lx r over 8 years ago
- Subject changed from x220/native graphics: display shows only a one colore blue image. to x220/native graphics: after some time the display shows only a one color blur image.
Updated by Alexander Couzens over 8 years ago
- Status changed from New to Closed
There was an old leftover in my cmdline for linux.
removed it. I played a with i915 cmdline options to mitigate some flickering my previous laptop x201. Removing i915.edp_vswing=2 from cmdline now.
Updated by Alexander Couzens over 8 years ago
- Status changed from Closed to New
the bug is related to native gfx. it happens much more often with these experimental options.
it also shows up if using radare2 in visual mode and scrolling a little bit.
the pattern triggers than this behaviour.
Updated by Alexander Couzens over 8 years ago
Updated by Alexander Couzens over 8 years ago
- File dmesg_vgabios dmesg_vgabios added
Updated by Alexander Couzens over 8 years ago
don't think this is a problem
[ 9.232164] [drm:intel_dump_pipe_config] [CRTC:21][setup_hw_state] config ffff8800baa3b800 for pipe A
[ 14.948348] [drm:intel_dump_pipe_config] [CRTC:21][setup_hw_state] config ffff88007fca8000 for pipe A
brightness is broken?!
[ 9.218958] [drm:intel_panel_setup_backlight] Connector LVDS-1 backlight initialized, enabled, brightness 4437/1552 (nativegfx)
[ 14.936242] [drm:intel_panel_setup_backlight] Connector LVDS-1 backlight initialized, enabled, brightness 3000/3000 (vgabios
-they use a different port config:- before re-init by X. later they have the same.
[ 9.232180] [drm:intel_dump_pipe_config] port clock: 76000 (nativegfx)
[ 14.948377] [drm:intel_dump_pipe_config] port clock: 75000 (VGABIOS)
-and have a different port size- before re-init by X. later they have the same.
pipe src size: 640x480 (nativegfx)
pipe src size: 720x400 (VGABIOS)
only found on vgabios:
[ 14.922811] [drm:parse_general_definitions] crt_ddc_bus_pin: 2
Updated by Patrick Rudolph over 8 years ago
I've played a little bit with FDI link training on Sandybridge and it looks like it's very similar to the i915 kernel module.
But I discovered that the i915 kernel module expects the GPU to be configured and it doesn't reset all registers to a known state.
I accidentally disabled FDI scrambling and the display output was random, even after the kernel started...
Updated by Nico Huber over 7 years ago
- Status changed from New to Response Needed
Does this problem persist with a current kernel? Probably it's worth to give libgfxinit a shot?
Updated by Felix Singer over 2 years ago
- Status changed from Response Needed to Closed
Closed. No response since 5 years.