I can't control screen brightness in KDE(power management is enabled, but I don't see the brightness control in the power management widget. The brightness keys used to work as well, but now they aren't). I'm on the unstable channel, it was working in the 19.03 release
Battery and brightness settings (Power management widget)
Powerdevil, upower seem to be running without errors, although on startup
This seems relevant -
journalctl -xb | grep brightness
Oct 09 08:47:25 blackbox kernel: thinkpad_acpi: This ThinkPad has standard ACPI backlight brightness control, supported by the ACPI video driver
Oct 09 08:47:25 blackbox kernel: thinkpad_acpi: Disabling thinkpad-acpi brightness events by default...
Oct 09 08:47:43 blackbox xsession[1343]: invalid metadata "/run/current-system/sw/lib/qt-5.12.3/plugins/powerdevilkeyboardbrightnesscontrolaction_config.so"
Oct 09 08:47:43 blackbox xsession[1343]: invalid metadata "/run/current-system/sw/lib/qt-5.12.3/plugins/powerdevilbrightnesscontrolaction_config.so"
Oct 09 08:47:45 blackbox xsession[1343]: powerdevil: Falling back to helper to get brightness
Oct 09 08:47:45 blackbox xsession[1343]: powerdevil: "DBus Backend error: service start org.kde.powerdevil.backlighthelper failed: Bus name not found in system service directory"
System information
nix-info
system: "x86_64-linux",
multi-user?: yes,
version: nix-env (Nix) 2.3,
channels(root):
"nixos-20.03pre196201.07d4df59626, home-manager, nixos-hardware"
neofetch --stdout
xxx#blackbox
-----------------
OS: NixOS 20.03pre196201.07d4df59626 (Markhor) x86_64
Host: 20KGSBP200 ThinkPad X1 Carbon 6th
Kernel: 4.19.75
Uptime: 1 day, 4 hours, 16 mins
Packages: 1005 (nix-system), 1152 (nix-user)
Shell: zsh 5.7.1
Resolution: 2560x1440
DE: Plasma
WM: KWin
Theme: Breeze [GTK2]
Icons: breeze [GTK2]
CPU: Intel i5-8350U (8) # 3.600GHz
Memory: 3920MiB / 15919MiB
I had the same problem and fixed it by uninstalling the Nvidia proprietary driver for the GPU and used the open source Linux driver instead.
Related
I try to understand some kernel messages related to the CAN bus driver for mcp251x
in syslog I have several
hard_xmit called while tx busy
and at last
mcp251x spi0.0 can0: bus-off
What is hard_xmit and what causes it?
uname -a
Linux cilix-19 5.15.32-v7l+ #1538 SMP Thu Mar 31 19:39:41 BST 2022 armv7l GNU/Linux
dmesg | grep model
[ 0.000000] OF: fdt: Machine model: Raspberry Pi Compute Module 4 Rev 1.0
Seems like someone is playing a prank on me. My computer settings change between days and I'm certain that this version is a home-brew and not the original OS X.
Recovery/re-installation doesn't work because it restores itself after a day. How do I check if this is the original operating system?
messing around with the terminal raises a few red flags. For example:
master.passwd contains this:
nobody:*:-2:-2::0:0:Unprivileged User:/var/empty:/usr/bin/false
root:*:0:0::0:0:System Administrator:/var/root:/bin/sh
daemon:*:1:1::0:0:System Services:/var/root:/usr/bin/false
_uucp:*:4:4::0:0:Unix to Unix Copy Protocol:/var/spool/uucp:/usr/sbin/uucico
_taskgated:*:13:13::0:0:Task Gate Daemon:/var/empty:/usr/bin/false
_networkd:*:24:24::0:0:Network Services:/var/networkd:/usr/bin/false
_installassistant:*:25:25::0:0:Install Assistant:/var/empty:/usr/bin/false
_lp:*:26:26::0:0:Printing Services:/var/spool/cups:/usr/bin/false
_postfix:*:27:27::0:0:Postfix Mail Server:/var/spool/postfix:/usr/bin/false
_scsd:*:31:31::0:0:Service Configuration Service:/var/empty:/usr/bin/false
_ces:*:32:32::0:0:Certificate Enrollment Service:/var/empty:/usr/bin/false
_appstore:*:33:33::0:0:Mac App Store Service:/var/empty:/usr/bin/false
_mcxalr:*:54:54::0:0:MCX AppLaunch:/var/empty:/usr/bin/false
_appleevents:*:55:55::0:0:AppleEvents Daemon:/var/empty:/usr/bin/false
_geod:*:56:56::0:0:Geo Services Daemon:/var/db/geod:/usr/bin/false
_devdocs:*:59:59::0:0:Developer Documentation:/var/empty:/usr/bin/false
_sandbox:*:60:60::0:0:Seatbelt:/var/empty:/usr/bin/false
_mdnsresponder:*:65:65::0:0:mDNSResponder:/var/empty:/usr/bin/false
_ard:*:67:67::0:0:Apple Remote Desktop:/var/empty:/usr/bin/false
_www:*:70:70::0:0:World Wide Web Server:/Library/WebServer:/usr/bin/false
_eppc:*:71:71::0:0:Apple Events User:/var/empty:/usr/bin/false
_cvs:*:72:72::0:0:CVS Server:/var/empty:/usr/bin/false
_svn:*:73:73::0:0:SVN Server:/var/empty:/usr/bin/false
_mysql:*:74:74::0:0:MySQL Server:/var/empty:/usr/bin/false
_sshd:*:75:75::0:0:sshd Privilege separation:/var/empty:/usr/bin/false
_qtss:*:76:76::0:0:QuickTime Streaming Server:/var/empty:/usr/bin/false
_cyrus:*:77:6::0:0:Cyrus Administrator:/var/imap:/usr/bin/false
_mailman:*:78:78::0:0:Mailman List Server:/var/empty:/usr/bin/false
_appserver:*:79:79::0:0:Application Server:/var/empty:/usr/bin/false
_clamav:*:82:82::0:0:ClamAV Daemon:/var/virusmails:/usr/bin/false
_amavisd:*:83:83::0:0:AMaViS Daemon:/var/virusmails:/usr/bin/false
_jabber:*:84:84::0:0:Jabber XMPP Server:/var/empty:/usr/bin/false
_appowner:*:87:87::0:0:Application Owner:/var/empty:/usr/bin/false
_windowserver:*:88:88::0:0:WindowServer:/var/empty:/usr/bin/false
_spotlight:*:89:89::0:0:Spotlight:/var/empty:/usr/bin/false
_tokend:*:91:91::0:0:Token Daemon:/var/empty:/usr/bin/false
_securityagent:*:92:92::0:0:SecurityAgent:/var/db/securityagent:/usr/bin/false
_calendar:*:93:93::0:0:Calendar:/var/empty:/usr/bin/false
_teamsserver:*:94:94::0:0:TeamsServer:/var/teamsserver:/usr/bin/false
_update_sharing:*:95:-2::0:0:Update Sharing:/var/empty:/usr/bin/false
_installer:*:96:-2::0:0:Installer:/var/empty:/usr/bin/false
_atsserver:*:97:97::0:0:ATS Server:/var/empty:/usr/bin/false
_ftp:*:98:-2::0:0:FTP Daemon:/var/empty:/usr/bin/false
_unknown:*:99:99::0:0:Unknown User:/var/empty:/usr/bin/false
_softwareupdate:*:200:200::0:0:Software Update Service:/var/db/softwareupdate:/usr/bin/false
_coreaudiod:*:202:202::0:0:Core Audio Daemon:/var/empty:/usr/bin/false
_screensaver:*:203:203::0:0:Screensaver:/var/empty:/usr/bin/false
_locationd:*:205:205::0:0:Location Daemon:/var/db/locationd:/usr/bin/false
_trustevaluationagent:*:208:208::0:0:Trust Evaluation Agent:/var/empty:/usr/bin/false
_timezone:*:210:210::0:0:AutoTimeZoneDaemon:/var/empty:/usr/bin/false
_lda:*:211:211::0:0:Local Delivery Agent:/var/empty:/usr/bin/false
_cvmsroot:*:212:212::0:0:CVMS Root:/var/empty:/usr/bin/false
_usbmuxd:*:213:213::0:0:iPhone OS Device Helper:/var/db/lockdown:/usr/bin/false
_dovecot:*:214:6::0:0:Dovecot Administrator:/var/empty:/usr/bin/false
_dpaudio:*:215:215::0:0:DP Audio:/var/empty:/usr/bin/false
_postgres:*:216:216::0:0:PostgreSQL Server:/var/empty:/usr/bin/false
_krbtgt:*:217:-2::0:0:Kerberos Ticket Granting Ticket:/var/empty:/usr/bin/false
_kadmin_admin:*:218:-2::0:0:Kerberos Admin Service:/var/empty:/usr/bin/false
_kadmin_changepw:*:219:-2::0:0:Kerberos Change Password Service:/var/empty:/usr/bin/false
expected a command to set a master password...
There's a "VM" mounted disk hidden in /private/var/vm
it contains this file
$ cat sleepimage
and it returns:
Model: MBP121
EFI Version: 186.0.0.0.0
Built by: root#xapp160
Date: Fri Jun 14 09:21:38 PDT 2019
Revision: 186 (B&I)
ROM Version: F000_B00
Build Type: Official Build, Release
Compiler: Apple LLVM version 5.0 (clang-500.0.68) (based on LLVM 3.3svn)
Model: MBP121
EFI Version: 186.0.0.0.0
Built by: root#xapp160
Date: Fri Jun 14 09:21:38 PDT 2019
Revision: 186 (B&I)
ROM Version: F000_B00
Build Type: Official Build, Release
Compiler: Apple LLVM version 5.0 (clang-500.0.68) (based on LLVM 3.3svn)
garbled text
EFI Version: 186.0.0.0.0
Built by: root#xapp160
Date: Fri Jun 14 09:21:38 PDT 2019
Revision: 186 (B&I)
ROM Version: F000_B00
Build Type: Official Build, Release
Compiler: Apple LLVM version 5.0 (clang-500.0.68) (based on LLVM 3.3svn)
I am trying to VNC to a Ununtu 16.04 from windows 10. I am getting a textured gray screen with cross cursor.
Below is my log file:
Xvnc Free Edition 4.1.1 - built Feb 25 2015 23:02:21
Copyright (C) 2002-2005 RealVNC Ltd.
See http://www.realvnc.com for information on VNC.
Underlying X server release 40300000, The XFree86 Project, Inc
Wed Aug 17 14:42:46 2016
vncext: VNC extension running!
vncext: Listening for VNC connections on port 5902
vncext: created VNC server for screen 0
error opening security policy file /etc/X11/xserver/SecurityPolicy
Could not init font path element /usr/X11R6/lib/X11/fonts/Type1/, removing from list!
Could not init font path element /usr/X11R6/lib/X11/fonts/Speedo/, removing from list!
Could not init font path element /usr/X11R6/lib/X11/fonts/misc/, removing from list!
Could not init font path element /usr/X11R6/lib/X11/fonts/75dpi/, removing from list!
Could not init font path element /usr/X11R6/lib/X11/fonts/100dpi/, removing from list!
Could not init font path element /usr/share/fonts/X11/75dpi/, removing from list!
Could not init font path element /usr/share/fonts/X11/100dpi/, removing from list!
Wed Aug 17 14:43:07 2016
Connections: accepted: 0.0.0.0::64580
SConnection: Client needs protocol version 3.8
SConnection: Client requests security type VncAuth(2)
Wed Aug 17 14:43:10 2016
VNCSConnST: Server default pixel format depth 24 (32bpp) little-endian bgr888
VNCSConnST: Client pixel format depth 24 (32bpp) little-endian rgb888
My xtartup file looks like:
#!/bin/sh
# Uncomment the following two lines for normal desktop:
unset SESSION_MANAGER
exec /etc/X11/xinit/xinitrc
[ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup
[ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources
xsetroot -solid grey
vncconfig -iconic &
x-terminal-emulator -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" &
x-window-manager &
I have searched internet thoroughly and have tried a lot of things suggested, but nothing does what I am looking for. If I comment the last two lines in the xstartup file, I get a smoother version of this gray screen with 3 check boxes on top-left corner. What I am looking for is a GUI as if I am directly using that machine.
Edit:
I have checked; /etc/X11/xinit/xinitrc is installed. Following is the list of x11* packages that are on the system:
root#sonu-virtual-machine:/etc/X11/xinit# dpkg -l | grep x11*
ii dbus-x11 1.10.6-1ubuntu3 amd64 simple interprocess messaging system (X11 deps)
ii libselinux1:amd64 2.4-3build2 amd64 SELinux runtime shared libraries
ii libspeex1:amd64 1.2~rc1.2-1ubuntu1 amd64 The Speex codec runtime library
ii libwebpmux1:amd64 0.4.4-1 amd64 Lossy compression of digital photographic images.
ii libx11-6:amd64 2:1.6.3-1ubuntu2 amd64 X11 client-side library
ii libx11-data 2:1.6.3-1ubuntu2 all X11 client-side library
ii libx11-protocol-perl 0.56-7 all Perl module for the X Window System Protocol, version 11
ii libx11-xcb1:amd64 2:1.6.3-1ubuntu2 amd64 Xlib/XCB interface library
ii libxkbcommon-x11-0:amd64 0.5.0-1ubuntu2 amd64 library to create keymaps with the XKB X11 protocol
ii pulseaudio-module-x11 1:8.0-0ubuntu3 amd64 X11 module for PulseAudio sound server
ii signon-ui-x11 0.17+16.04.20151125-0ubuntu1 amd64 Single Sign-on UI
ii x11-apps 7.7+5+nmu1ubuntu1 amd64 X applications
ii x11-common 1:7.7+13ubuntu3 all X Window System (X.Org) infrastructure
ii x11-session-utils 7.7+2 amd64 X session utilities
ii x11-utils 7.7+3 amd64 X11 utilities
ii x11-xkb-utils 7.7+2 amd64 X11 XKB utilities
ii x11-xserver-utils 7.7+7 amd64 X server utilities
Edit 2:
I checked -- file /etc/X11/xserver/SecurityPolicy is not present. I searched online. It seems a lot of others had this problem, but no solutions are there.
I recently updated to Xcode 4.2. I also updated my new iPad 2 and iPod (latest generation) to iOS 5. I build my app and can debug them no problem.
My older iPod running iOS 4.2.1 (8C148) doesn't run and doesn't give any errors.
The top center panel says "Finished running MyApp on iPod One". (iPod One is the name of my first iPod touch)
There is a flicker at the bottom of Xcode as if it almost went into the debugger and was about to show the bottom output panel but it doesn't. A break point in main doesn't stop it either.
I have no errors and nothing to go on.
I have renewed all provisioning profiles, restored the device, selected "use for development", nothing has helped.
Since there is no feed back from Xcode I do not know what to do.
p.s. The app runs in all of the simulators fine as well.
When I initially select the iPod I see the following series of messages in the console for the devices as shown from the Organizer:
Thu Oct 20 09:42:49 unknown lockdownd[16] : 2ffea000
handle_connection: Could not receive USB message #6 from Xcode.
Killing connection Thu Oct 20 09:42:49 unknown
com.apple.mobile.lockdown[16] : Could not receive size of
message Thu Oct 20 09:42:50 unknown
/Developer/Library/Daemons/DTFetchSymbols[308] : Found paths:
Thu Oct 20 09:42:50 unknown
/Developer/Library/Daemons/DTFetchSymbols[308] : /usr/lib/dyld
Thu Oct 20 09:42:50 unknown
/Developer/Library/Daemons/DTFetchSymbols[308] :
/System/Library/Caches/com.apple.dyld/dyld_shared_cache_armv6 Thu Oct
20 09:42:50 unknown com.apple.mobile.lockdown[16] : Could not
receive size of message Thu Oct 20 09:42:50 unknown lockdownd[16]
: 2ffea000 handle_connection: Could not receive USB message #6
from Xcode. Killing connection Thu Oct 20 09:42:56 unknown
lockdownd[16] : 2ffea000 handle_connection: Could not receive
USB message #6 from MDCrashReportTool. Killing connection
I had the same problem, but I solved it. The cause
unsuported architecture (by default Xcode4.2 uses standard arch= armv7 ) -> add armv6
In addition to adding the armv6 architecture, I had to remove the armv7 entry from my apps info.plist "Required Device Capabilities" entry.
I downloaded and installed final version of Xcode 4. I opened my iPad project and realised that breakpoint's doesn't work on the device. They work ok on simulator though.
Before I was using Xcode 3.2 and everything was working fine.
I also tried creating an empty view based iOS application from scratch and have exactly this same issue. I was googling on that issue, but all solutions were based on previous versions of Xcode.
Any suggestions what am I doing wrong ?
Here is output from a console when running application
Mar 10 14:34:44 unknown installd[547] : entitlement 'keychain-access-groups' has value not permitted by a provisioning profile
Mar 10 14:34:44 unknown installd[547] : entitlement 'application-identifier' has value not permitted by a provisioning profile
Mar 10 14:34:44 unknown SpringBoard[29] : Killing me.device-debugging-test activate: deactivate: for app installation
Mar 10 14:34:44 unknown installd[547] : entitlement 'keychain-access-groups' has value not permitted by a provisioning profile
Mar 10 14:34:44 unknown installd[547] : entitlement 'application-identifier' has value not permitted by a provisioning profile
Mar 10 14:34:44 unknown SpringBoard[29] : Reloading application state for 'me.device-debugging-test' as its modification date has changed
Mar 10 14:34:45 unknown SpringBoard[29] : Reloading and rendering all application icons.
Mar 10 14:34:46 unknown com.apple.debugserver-48[551] : debugserver-48 for armv6 Copyright (c) 2007-2009 Apple, Inc. All Rights Reserved.
Mar 10 14:34:46 unknown com.apple.debugserver-48[551] : Connecting to com.apple.debugserver service...
Mar 10 14:34:47 unknown com.apple.launchd[1] : (UIKitApplication:me.device-debugging-test[0x4309]) Spawned and waiting for the debugger to attach before continuing...
Mar 10 14:34:47 unknown com.apple.debugserver-48[551] : Got a connection, waiting for debugger instructions for task "(null)".
Mar 10 14:34:47 unknown kernel[0] : lockbot[544] Builtin profile: debugserver (sandbox)
Mar 10 14:34:47 unknown kernel[0] : launchd[552] Builtin profile: container (sandbox)
Mar 10 14:34:47 unknown kernel[0] : launchd[552] Container: /private/var/mobile/Applications/(...) [69] (sandbox)
Reboot your device.
Short, sweet, and simple solution.
After hours spent digging through all the XCode options.