| Summary: | [i915][kernel modesetting] display modes not detected with KMS | ||||||||||||||||||||||||
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| Product: | DRI | Reporter: | Michael S. Tsirkin <m.s.tsirkin> | ||||||||||||||||||||||
| Component: | DRM/Intel | Assignee: | Gordon Jin <gordon.jin> | ||||||||||||||||||||||
| Status: | CLOSED DUPLICATE | QA Contact: | |||||||||||||||||||||||
| Severity: | normal | ||||||||||||||||||||||||
| Priority: | medium | ||||||||||||||||||||||||
| Version: | unspecified | ||||||||||||||||||||||||
| Hardware: | Other | ||||||||||||||||||||||||
| OS: | All | ||||||||||||||||||||||||
| Whiteboard: | |||||||||||||||||||||||||
| i915 platform: | i915 features: | ||||||||||||||||||||||||
| Attachments: |
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Created attachment 27454 [details]
dmesg with kms enabled
Created attachment 27455 [details]
dmesg with kms disabled
Created attachment 27456 [details]
intel reg dumper output with kms enabled
Created attachment 27457 [details]
intel reg dumper output with kms disabled
Created attachment 27458 [details]
xorg log with kms enabled
Created attachment 27459 [details]
xorg log with kms disabled
Created attachment 27460 [details]
xrandr verbose output with kms enabled
Created attachment 27461 [details]
xrandr verbose output with kms disabled
Created attachment 27462 [details]
xorg conf
Created attachment 27463 [details]
lspci -vv output
As an additional comment, I observe this with 32 bit userspace, and with both 32 and 64 bit kernel. Thanks for the detailed report. This has been fixed in the latest xf86-vieo-intel driver (to be in the upcoming 2.8 release) *** This bug has been marked as a duplicate of bug 20801 *** built latest bits. xrandr shows a lot of modes now, however, no modes besides the max one work. do I have to open another bug for this? I'd rather not ... (In reply to comment #13) > built latest bits. xrandr shows a lot of modes now, > however, no modes besides the max one work. > do I have to open another bug for this? > I'd rather not ... Please open a separate bug so we can better track it, since the info in logs will be different than here. Since I really need the external display which only supports 1024x768, it might take me a bit of time till I play with kms again. BTW http://bugs.freedesktop.org/show_bug.cgi?id=22329 seems similar, but hard to be sure. |
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On T500 thinkpad with intel graphics, I enabled KMS on i915, and noticed that only a single mode shows up in xrandr output. Without kms, all modes are supported. Tested on 2.6.31-rc2, 2.6.30 and 2.6.29.4-167 that ships with Fedora 11. With kms enabled: Screen 0: minimum 320 x 200, current 1680 x 1050, maximum 8192 x 8192 VGA1 disconnected (normal left inverted right x axis y axis) LVDS1 connected 1680x1050+0+0 (normal left inverted right x axis y axis) 331mm x +207mm 1680x1050 60.1*+ 50.1 DVI1 disconnected (normal left inverted right x axis y axis) DVI2 disconnected (normal left inverted right x axis y axis) Without kms enabled: Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 1680 x 1680 VGA disconnected (normal left inverted right x axis y axis) LVDS connected 1280x1024+0+0 (normal left inverted right x axis y axis) 331mm x +207mm 1680x1050 60.1 + 50.1 1400x1050 74.8 60.0 1280x1024 85.0 75.0 60.0* 1280x960 85.0 60.0 1152x864 75.0 1024x768 85.0 75.0 70.1 60.0 832x624 74.6 800x600 85.1 72.2 75.0 60.3 56.2 640x480 85.0 72.8 75.0 59.9 720x400 85.0 640x400 85.1 640x350 85.1 HDMI-1 disconnected (normal left inverted right x axis y axis) HDMI-2 disconnected (normal left inverted right x axis y axis) System environment: -- T500 with intel graphics i915 -- lspci output - attached -- xf86-video-intel:2.7.0 -- xserver: 1.6.1.901 (1.6.2 RC 1) -- mesa version: GL_RENDERER = Mesa DRI Mobile Intel® GM45 Express Chipset GEM 20090114 x86/MMX/SSE2 GL_VERSION = 2.1 Mesa 7.6-devel GL_VENDOR = Tungsten Graphics, Inc -- libdrm: 2.4.6 -- kernel: 2.6.31-rc2, 2.6.30 from kernel.org, 2.6.29.4-167 -- Linux distribution: Fedora 11 -- Machine : T500 with intel graphics -- Display: LVDS Reproducing steps: boot with i915.modeset=0 xrandr to see a list of modes for LVDS boot with i915.modeset=1 xrandr to see a single mode for LVDS1 Additional info: attaching files for both kms (i915.modeset=1) and no kms (i915.modeset=0) dmesg intel reg dumper output xorg.conf Xorg.0.log xrandr output