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I'm having issues with the 'i915' module which is preventing my screen from setting to the proper resoulution. I cannot insert the 'i915' module at boot, leading me to believe something is wrong with intel graphics / KMS. This problem arose after I attempted to patch my wireless drivers. After loading the wireless modules I had compiled from source, I received a blank screen on reboot. I followed https://wiki.archlinux.org/index.php/Intel_Graphics to try to resolve the problem. Specifically, I tried setting the kernel line to "video=SVIDEO-1:d" and placing i915 and intel_agp in /etc/mkinitcpio.conf. These didn't work, but setting the kernel line to "nomodeset" would allow me to boot to a low resolution terminal.
I uninstalled the wireless drivers to try to revert nay change which was made. In the process, I removed the modules: compat, i915, drm, and drm_kms_helper. I can now boot to the low resolution terminal as with "nomodeset", but I cannot load any of the modules which I had removed above. I have included part of the output of journalctl -b, which shows the failure to insert 'i915'. I've been working at this for a day, but I can't seem to get past this.
May 08 07:38:40 laptop slim[238]: /usr/bin/xauth: file /var/run/slim.auth does not exist
May 08 07:38:40 laptop slim[238]: X.Org X Server 1.14.1
May 08 07:38:40 laptop slim[238]: Release Date: 2013-04-17
May 08 07:38:40 laptop slim[238]: X Protocol Version 11, Revision 0
May 08 07:38:40 laptop slim[238]: Build Operating System: Linux 3.8.7-1-ARCH x86_64
May 08 07:38:40 laptop slim[238]: Current Operating System: Linux laptop 3.8.11-1-ARCH #1 SMP PREEMPT Wed May 1 20:18:57 CEST 2013 x86_64
May 08 07:38:40 laptop slim[238]: Kernel command line: root=/dev/sda3 ro initrd=../initramfs-linux.img BOOT_IMAGE=../vmlinuz-linux
May 08 07:38:40 laptop slim[238]: Build Date: 17 April 2013 02:37:06PM
May 08 07:38:40 laptop slim[238]: Current version of pixman: 0.28.2
May 08 07:38:40 laptop slim[238]: Before reporting problems, check http://wiki.x.org
May 08 07:38:40 laptop slim[238]: to make sure that you have the latest version.
May 08 07:38:40 laptop slim[238]: Markers: (--) probed, (**) from config file, (==) default setting,
May 08 07:38:40 laptop slim[238]: (++) from command line, (!!) notice, (II) informational,
May 08 07:38:40 laptop slim[238]: (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
May 08 07:38:40 laptop slim[238]: (==) Log file: "/var/log/Xorg.0.log", Time: Wed May 8 07:38:39 2013
May 08 07:38:40 laptop slim[238]: (==) Using config directory: "/etc/X11/xorg.conf.d"
May 08 07:38:40 laptop slim[238]: Initializing built-in extension Generic Event Extension
May 08 07:38:40 laptop slim[238]: Initializing built-in extension SHAPE
May 08 07:38:40 laptop slim[238]: Initializing built-in extension MIT-SHM
May 08 07:38:40 laptop slim[238]: Initializing built-in extension XInputExtension
May 08 07:38:40 laptop slim[238]: Initializing built-in extension XTEST
May 08 07:38:40 laptop slim[238]: Initializing built-in extension BIG-REQUESTS
May 08 07:38:40 laptop slim[238]: Initializing built-in extension SYNC
May 08 07:38:40 laptop slim[238]: Initializing built-in extension XKEYBOARD
May 08 07:38:40 laptop slim[238]: Initializing built-in extension XC-MISC
May 08 07:38:40 laptop slim[238]: Initializing built-in extension SECURITY
May 08 07:38:40 laptop slim[238]: Initializing built-in extension XINERAMA
May 08 07:38:40 laptop slim[238]: Initializing built-in extension XFIXES
May 08 07:38:40 laptop slim[238]: Initializing built-in extension RENDER
May 08 07:38:40 laptop slim[238]: Initializing built-in extension RANDR
May 08 07:38:40 laptop slim[238]: Initializing built-in extension COMPOSITE
May 08 07:38:40 laptop slim[238]: Initializing built-in extension DAMAGE
May 08 07:38:40 laptop slim[238]: Initializing built-in extension MIT-SCREEN-SAVER
May 08 07:38:40 laptop slim[238]: Initializing built-in extension DOUBLE-BUFFER
May 08 07:38:40 laptop slim[238]: Initializing built-in extension RECORD
May 08 07:38:40 laptop slim[238]: Initializing built-in extension DPMS
May 08 07:38:40 laptop slim[238]: Initializing built-in extension X-Resource
May 08 07:38:40 laptop slim[238]: Initializing built-in extension XVideo
May 08 07:38:40 laptop slim[238]: Initializing built-in extension XVideo-MotionCompensation
May 08 07:38:40 laptop slim[238]: Initializing built-in extension XFree86-VidModeExtension
May 08 07:38:40 laptop slim[238]: Initializing built-in extension XFree86-DGA
May 08 07:38:40 laptop slim[238]: Initializing built-in extension XFree86-DRI
May 08 07:38:40 laptop kernel: Bluetooth: HCI socket layer initialized
May 08 07:38:40 laptop slim[238]: Initializing built-in extension DRI2
May 08 07:38:40 laptop slim[238]: Loading extension GLX
May 08 07:38:40 laptop slim[238]: modprobe: ERROR: could not insert 'i915': Unknown symbol in module, or unknown parameter (see dmesg)
May 08 07:38:40 laptop slim[238]: Fatal server error:
May 08 07:38:40 laptop slim[238]: no screens found
May 08 07:38:40 laptop slim[238]: (EE)
May 08 07:38:40 laptop slim[238]: Please consult the The X.Org Foundation support
May 08 07:38:40 laptop slim[238]: at http://wiki.x.org
May 08 07:38:40 laptop slim[238]: for help.
May 08 07:38:40 laptop slim[238]: (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
May 08 07:38:40 laptop slim[238]: (EE)
May 08 07:38:40 laptop slim[238]: Server terminated with error (1). Closing log file. Thanks
Edit: An update fixed the problem. Unfortunately, I don't know which package was broken.
Last edited by bellcort (2013-05-13 23:40:00)
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In the process, I removed the modules: compat, i915, drm, and drm_kms_helper. I can now boot to the low resolution terminal as with "nomodeset", but I cannot load any of the modules which I had removed above.
Don't worry, it's normal.
Did you try installing these modules back?
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I tried reloading each of the modules I had listed above. Below is the output for each module:
modprobe: FATAL: Module compat not found.modprobe: ERROR: could not insert 'i915': Unknown symbol in module, or unknown parameter (see dmesg)modprobe: ERROR: could not insert 'drm': Unknown symbol in module, or unknown parameter (see dmesg)modprobe: ERROR: could not insert 'drm_kms_helper': Unknown symbol in module, or unknown parameter (see dmesg)For the latter three, the dmesg output was the same:
[ 1.875708] drm: Unknown symbol compat_dependency_symbol (err 0)Offline
I've discovered what initially caused this problem. When I patched the wireless drivers, the package I downloaded contained the intel graphics drivers as well (https://www.kernel.org/pub/linux/kernel … ts/stable/). I've recompiled these drivers from source and reinstalled them, but now I am back to the blank screen problem I had before. I've tried compiling and installing only the compat module, but it still leads to a blank screen. Without compiling the package, I cannot load the compat module. I can download the other drivers (i915, drm, etc.) from the arch repos, but without the compat module I cannot load them. How can I restore these drivers (or just the compat module) to their arch versions?
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Reinstall the kernel ("linux" package) with pacman.
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I tried this initially. While it will reinstall several of the modules, it does not install compat, which they all seem to depend upon. I've tried reinstalling every package I could think of, but the modules above will not load due to the missing compat_dependency_symbol. When I compile the compat module from source, I encounter the blank screen. Can I find this compat module in the arch repos, or am I missing something else?
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