On Tue, 27 Jan 2015, Martin Wilck <mwilck@xxxxxxxx> wrote: > Dear list members, > > I suffer from highly disturbing artefacts with the Intel HD 4400 chip > set on thw 2560x1440 display (Sharp LQ133T1JW19) of my Fujitsu Lifebook > S904. The effects are hard to describe, therefore I have uploaded a > video to > https://www.dropbox.com/sh/9wh0nzvp0w1phxz/AAAsvAqHN8ApXzor58FmGbwLa?dl=0. > I can distinguish 2 effects that are possibly related to each other: Just a quick guess, what does this say: # cat /sys/module/i915/parameters/enable_{fbc,ips,psr} Please try these module parameters for the non-zero ones: i915.enable_fbc=0 i915.enable_ips=0 i915.enable_psr=0 BR, Jani. > > 1. Maximized windows under GNOME3 (fully maximized or half-maximized on > the right edge of the screen) fill the screen vertically with a single > color (usually grey). Half-maximzed windows on the left edge are not > affected. The effect is only seen if the Laptop screen is the main > monitor in GNOME (showing the panel on top). Some applications, which > start in maximized mode and can't be resized, are unusable on this screen. > > 2. Artefacts appear when windows are placed on the right and bottom > areas of the screen. The artefacts look as if pixels extend vertically > from their horizontal position to the bottom edge of the screen > (resulting in vertical lines). The strength of the effect depends on the > content of the windows that are visible. The effect "extends" from the > window causing it to other windows and the background. The effect is not > seen in screenshots (screenshot looks fine although the screen was > unreadable at the time I took it). > > 1.) is observed only under GNOME, but I see 2.) on KDE and LXDE, too. I > also tried various distributions. Most of my experiments have been done > on OpenSUSE 13.2, kernel-vanilla-3.19.rc5, xorg 7.6_1.16.1-5.1, intel > 2.99.916, libdrm_intel1-2.4.58-1.1, Mesa 10.3.0-91.3.2. But I see the > artefacts also on Fedora 21 and Ubuntu 14.04. > > As a matter of fact, I tried the modesetting driver and even fbdev and > observed similar effects, too. Thus i915 may actually not be the culprit > here, but could I figure no other place to ask for help than this > mailing list. > > I have also experimented with resolutions and refresh rates. Only at > 1024x768 and lower I was unable to reproduce the problem. > > Any help would be highly appreciated. I am highly willing to do any > testing and/or debugging that may be necessary to find the problem. > > Best regards > Martin > > > martin@artemis:~> xrandr --verbose > Screen 0: minimum 8 x 8, current 2560 x 1440, maximum 32767 x 32767 > eDP1 connected primary 2560x1440+0+0 (0x49) normal (normal left inverted > right x axis y axis) 294mm x 165mm > Identifier: 0x43 > Timestamp: 19447 > Subpixel: unknown > Gamma: 1.0:1.0:1.0 > Brightness: 1.0 > Clones: > CRTC: 0 > CRTCs: 0 1 2 > Transform: 1.000000 0.000000 0.000000 > 0.000000 1.000000 0.000000 > 0.000000 0.000000 1.000000 > filter: > _MUTTER_PRESENTATION_OUTPUT: 0 > EDID: > 00ffffffffffff004d10121400000000 > 24170104a51d1178068800a4564d9a26 > 0d505400000001010101010101010101 > 010101010101735f00a0a0a03a503020 > e50026a510000018454c00a0a0a03a50 > 3020e50026a510000018aa3f00a0a0a0 > 3a503020e50026a510000018000000fc > 004c5131333354314a5731390a2000b6 > BACKLIGHT: 892 > range: (0, 892) > Backlight: 892 > range: (0, 892) > scaling mode: Full aspect > supported: None, Full, Center, Full aspect > Broadcast RGB: Automatic > supported: Automatic, Full, Limited 16:235 > audio: auto > supported: force-dvi, off, auto, on > 2560x1440 (0x49) 244.350MHz -HSync -VSync *current +preferred > h: width 2560 start 2608 end 2640 total 2720 skew 0 clock > 89.83KHz > v: height 1440 start 1454 end 1459 total 1498 clock > 59.97Hz > 2560x1440 (0xae) 195.250MHz -HSync -VSync > h: width 2560 start 2608 end 2640 total 2720 skew 0 clock > 71.78KHz > v: height 1440 start 1454 end 1459 total 1498 clock > 47.92Hz > 2560x1440 (0xaf) 162.980MHz -HSync -VSync > h: width 2560 start 2608 end 2640 total 2720 skew 0 clock > 59.92KHz > v: height 1440 start 1454 end 1459 total 1498 clock > 40.00Hz > 1920x1440 (0xb0) 234.000MHz -HSync +VSync > h: width 1920 start 2048 end 2256 total 2600 skew 0 clock > 90.00KHz > v: height 1440 start 1441 end 1444 total 1500 clock > 60.00Hz > 1856x1392 (0xb1) 218.300MHz -HSync +VSync > h: width 1856 start 1952 end 2176 total 2528 skew 0 clock > 86.35KHz > v: height 1392 start 1393 end 1396 total 1439 clock > 60.01Hz > 1792x1344 (0xb2) 204.800MHz -HSync +VSync > h: width 1792 start 1920 end 2120 total 2448 skew 0 clock > 83.66KHz > v: height 1344 start 1345 end 1348 total 1394 clock > 60.01Hz > 1600x1200 (0xb3) 162.000MHz +HSync +VSync > h: width 1600 start 1664 end 1856 total 2160 skew 0 clock > 75.00KHz > v: height 1200 start 1201 end 1204 total 1250 clock > 60.00Hz > 1400x1050 (0xb4) 122.000MHz +HSync +VSync > h: width 1400 start 1488 end 1640 total 1880 skew 0 clock > 64.89KHz > v: height 1050 start 1052 end 1064 total 1082 clock > 59.98Hz > 1280x1024 (0xb5) 108.000MHz +HSync +VSync > h: width 1280 start 1328 end 1440 total 1688 skew 0 clock > 63.98KHz > v: height 1024 start 1025 end 1028 total 1066 clock > 60.02Hz > 1280x960 (0xb6) 108.000MHz +HSync +VSync > h: width 1280 start 1376 end 1488 total 1800 skew 0 clock > 60.00KHz > v: height 960 start 961 end 964 total 1000 clock > 60.00Hz > 1024x768 (0xb7) 65.000MHz -HSync -VSync > h: width 1024 start 1048 end 1184 total 1344 skew 0 clock > 48.36KHz > v: height 768 start 771 end 777 total 806 clock > 60.00Hz > 800x600 (0xb8) 40.000MHz +HSync +VSync > h: width 800 start 840 end 968 total 1056 skew 0 clock > 37.88KHz > v: height 600 start 601 end 605 total 628 clock > 60.32Hz > 800x600 (0xb9) 36.000MHz +HSync +VSync > h: width 800 start 824 end 896 total 1024 skew 0 clock > 35.16KHz > v: height 600 start 601 end 603 total 625 clock > 56.25Hz > 640x480 (0xba) 25.175MHz -HSync -VSync > h: width 640 start 656 end 752 total 800 skew 0 clock > 31.47KHz > v: height 480 start 490 end 492 total 525 clock > 59.94Hz > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@xxxxxxxxxxxxxxxxxxxxx > http://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Jani Nikula, Intel Open Source Technology Center _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
