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marco.difresco Apprentice
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Joined: 29 Jul 2011 Posts: 170
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Posted: Mon Jul 08, 2024 10:48 pm Post subject: [SOLVED] SDDM not starting on new lapotop |
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Hi all,
I got a new ThinkPad T14 Gen 5 and I am installing Gentoo on it.
The problem is that SDDM gives the following error:
Code: | # journalctl --boot=0 --unit=sddm --no-pager
Jul 09 00:41:24 MDF-Zurich-Laptop systemd[1]: Started Simple Desktop Display Manager.
Jul 09 00:41:24 MDF-Zurich-Laptop sddm[1728]: Initializing...
Jul 09 00:41:24 MDF-Zurich-Laptop sddm[1728]: Starting...
Jul 09 00:41:24 MDF-Zurich-Laptop sddm[1728]: Logind interface found
Jul 09 00:41:24 MDF-Zurich-Laptop sddm[1728]: Adding new display...
Jul 09 00:41:24 MDF-Zurich-Laptop sddm[1728]: Loaded empty theme configuration
Jul 09 00:41:24 MDF-Zurich-Laptop sddm[1728]: Xauthority path: "/run/sddm/xauth_GehMoz"
Jul 09 00:41:24 MDF-Zurich-Laptop sddm[1728]: Using VT 2
Jul 09 00:41:24 MDF-Zurich-Laptop sddm[1728]: Display server starting...
Jul 09 00:41:24 MDF-Zurich-Laptop sddm[1728]: Writing cookie to "/run/sddm/xauth_GehMoz"
Jul 09 00:41:24 MDF-Zurich-Laptop sddm[1728]: Running: /usr/bin/X -nolisten tcp -background none -seat seat0 vt2 -auth /run/sddm/xauth_GehMoz -noreset -displayfd 16
Jul 09 00:41:25 MDF-Zurich-Laptop sddm[1728]: Failed to read display number from pipe
Jul 09 00:41:25 MDF-Zurich-Laptop sddm[1728]: Display server stopping...
Jul 09 00:41:25 MDF-Zurich-Laptop sddm[1728]: Attempt 1 starting the Display server on vt 2 failed
Jul 09 00:41:27 MDF-Zurich-Laptop sddm[1728]: Display server starting...
Jul 09 00:41:27 MDF-Zurich-Laptop sddm[1728]: Writing cookie to "/run/sddm/xauth_GehMoz"
Jul 09 00:41:27 MDF-Zurich-Laptop sddm[1728]: Running: /usr/bin/X -nolisten tcp -background none -seat seat0 vt2 -auth /run/sddm/xauth_GehMoz -noreset -displayfd 16
Jul 09 00:41:27 MDF-Zurich-Laptop sddm[1728]: Failed to read display number from pipe
Jul 09 00:41:27 MDF-Zurich-Laptop sddm[1728]: Display server stopping...
Jul 09 00:41:27 MDF-Zurich-Laptop sddm[1728]: Attempt 2 starting the Display server on vt 2 failed
Jul 09 00:41:29 MDF-Zurich-Laptop sddm[1728]: Display server starting...
Jul 09 00:41:29 MDF-Zurich-Laptop sddm[1728]: Writing cookie to "/run/sddm/xauth_GehMoz"
Jul 09 00:41:29 MDF-Zurich-Laptop sddm[1728]: Running: /usr/bin/X -nolisten tcp -background none -seat seat0 vt2 -auth /run/sddm/xauth_GehMoz -noreset -displayfd 16
Jul 09 00:41:29 MDF-Zurich-Laptop sddm[1728]: Failed to read display number from pipe
Jul 09 00:41:29 MDF-Zurich-Laptop sddm[1728]: Display server stopping...
Jul 09 00:41:29 MDF-Zurich-Laptop sddm[1728]: Attempt 3 starting the Display server on vt 2 failed
Jul 09 00:41:29 MDF-Zurich-Laptop sddm[1728]: Could not start Display server on vt 2 |
The laptop has only this video card (no hybrid system):
Code: | 00:02.0 VGA compatible controller [0300]: Intel Corporation Meteor Lake-P [Intel Graphics] [8086:7d45] (rev 08)
Subsystem: Lenovo Device [17aa:2327]
Kernel driver in use: i915 |
Can you help? _________________ Marco Di Fresco
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Last edited by marco.difresco on Wed Jul 10, 2024 5:26 pm; edited 3 times in total |
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sublogic Apprentice
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Joined: 21 Mar 2022 Posts: 264 Location: Pennsylvania, USA
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Posted: Tue Jul 09, 2024 1:29 am Post subject: |
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I would want to know if sddm is at fault or if X is failing. Do you have a file like /var/log/Xorg.0.log ? If so, what does it say ?
To bypass sddm entirely you can emerge x11-terms/xterm and x11-apps/xclock, then run startx. If that fails, you have to fix it first. |
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marco.difresco Apprentice
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Joined: 29 Jul 2011 Posts: 170
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Posted: Tue Jul 09, 2024 12:49 pm Post subject: |
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sublogic wrote: | I would want to know if sddm is at fault or if X is failing. Do you have a file like /var/log/Xorg.0.log ? If so, what does it say ? |
I checked /var/log/Xorg.0.log and I immediately found the issue.
I preemptively installed this config from the wiki https://wiki.gentoo.org/wiki/Intel as I intend to use KDE, but I didn't notice it use the old "intel" driver instead of i915.
Code: | Section "Device"
Identifier "Device0"
Driver "intel"
Option "AccelMethod" "SNA"
Option "TearFree" "true"
EndSection |
For the moment I removed the above file. If I will have issue under KDE, I will wind another way.
Thank you very much. _________________ Marco Di Fresco
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marco.difresco Apprentice
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Joined: 29 Jul 2011 Posts: 170
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Posted: Tue Jul 09, 2024 8:11 pm Post subject: |
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marco.difresco wrote: | For the moment I removed the above file. If I will have issue under KDE, I will wind another way. |
OK, SDDM and KDE loaded without that file, but it seems there is no hardware acceleration:
Quote: | ~ glxinfo -B
name of display: :1
display: :1 screen: 0
direct rendering: Yes
Extended renderer info (GLX_MESA_query_renderer):
Vendor: Mesa (0xffffffff)
Device: llvmpipe (LLVM 17.0.6, 256 bits) (0xffffffff)
Version: 24.0.9
Accelerated: no
Video memory: 31591MB
Unified memory: yes
Preferred profile: core (0x1)
Max core profile version: 4.5
Max compat profile version: 4.5
Max GLES1 profile version: 1.1
Max GLES[23] profile version: 3.2
Memory info (GL_ATI_meminfo):
VBO free memory - total: 21 MB, largest block: 21 MB
VBO free aux. memory - total: 29744 MB, largest block: 29744 MB
Texture free memory - total: 21 MB, largest block: 21 MB
Texture free aux. memory - total: 29744 MB, largest block: 29744 MB
Renderbuffer free memory - total: 21 MB, largest block: 21 MB
Renderbuffer free aux. memory - total: 29744 MB, largest block: 29744 MB
Memory info (GL_NVX_gpu_memory_info):
Dedicated video memory: 120611 MB
Total available memory: 152203 MB
Currently available dedicated video memory: 21 MB
OpenGL vendor string: Mesa
OpenGL renderer string: llvmpipe (LLVM 17.0.6, 256 bits)
OpenGL core profile version string: 4.5 (Core Profile) Mesa 24.0.9
OpenGL core profile shading language version string: 4.50
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL version string: 4.5 (Compatibility Profile) Mesa 24.0.9
OpenGL shading language version string: 4.50
OpenGL context flags: (none)
OpenGL profile mask: compatibility profile
OpenGL ES profile version string: OpenGL ES 3.2 Mesa 24.0.9
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20 |
Any idea what am I doing wrong? _________________ Marco Di Fresco
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marco.difresco Apprentice
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Joined: 29 Jul 2011 Posts: 170
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Posted: Wed Jul 10, 2024 5:26 pm Post subject: |
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marco.difresco wrote: | Any idea what am I doing wrong? |
Found the issue. I had to add "i915/mtl_guc_70.bin" instead of "i915/skl_dmc_ver1_27.bin" in the kernel ("DMC firmware" section in the Intel wiki). _________________ Marco Di Fresco
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sublogic Apprentice
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Joined: 21 Mar 2022 Posts: 264 Location: Pennsylvania, USA
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Posted: Thu Jul 11, 2024 1:29 am Post subject: |
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Just a remark: if you compile i915 as a module instead of built-in, it will load its firmware from the filesystem after root is mounted. |
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