Red Hat Bugzilla – Bug 218133
GDM ignores /etc/gdm/custom.conf?
Last modified: 2013-03-05 22:48:24 EST
Description of problem: I made a simple change to /etc/gdm/custom.conf, namely adding "SystemMenu=false" to the [greeter] section. However, when GDM starts up, it seemingly ignores the option and displays the shutdown/reboot buttons anyway. Looking at the strace output, it appears that the option is being read, but is being forgotten somewhere: 17488 read(8, "GET_CONFIG greeter/SystemMenu :0"..., 4095) = 33 17488 sendto(8, "OK false\n", 8, MSG_DONTWAIT|MSG_NOSIGNAL, NULL, 0) = 8 Version-Release number of selected component (if applicable): gdm-2.16.0-19.el5 How reproducible: easy Steps to Reproduce: 1. add SystemMenu=false to [greeter] portion of /etc/gdm/custom.conf 2. restart GDM 3. Restart/Reboot buttons still appear Actual results: System menu appears Expected results: System menu is hidden Additional info:
did you reboot or run gdmflexiserver -c "UPDATE_CONFIG greeter/SystemMenu" after making the change?
I did run init 3 / init 5 to ensure that gdm started from scratch. With the system up and running and at the login screen (fresh boot): [skaven@ran059 /etc/gdm]$ sudo gdmflexiserver -c "GET_CONFIG greeter/SystemMenu" OK false And yet the login screen still allows you to shut down or reboot the system.
I think I see what's going on. The RHEL5 theme is missing type attributes to it's console show tags. Things work correctly if you switch to the standard greeter, yes?
I'm afraid I don't know the "red hat way" of switching to another greeter than the default. I don't see anything in /etc/sysconfig or /etc/default to select that...
Ah wait a minute I see what you mean -- yes, removing the theme and going to the "Plain" greeter stuff does indeed remove the system menu.
Okay, so just to confirm, if you change back to the graphical greeter and then if you open up /usr/share/gdm/themes/RHEL/RHEL.xml (maybe make a backup first) and change the <show modes="console"/> under the id="reboot_button" line to <show modes="console" type="reboot"/> and change the <show modes="console"/> under the id="hal_button" line to <show modes="console" type="halt"/> and restart gdm, does that fix things up?
Okay, I've reproduced the problem and can confirm that the steps in comment 6 fix things. Thanks Paul for the report and troubleshooting.
This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux major release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux Major release. This request is not yet committed for inclusion.
Indeed it does! I presume this patch will be included in RHEL5-final?
Hi Paul, this fix is currently being evaluated for inclusion in Red Hat Enterprise Linux 5. A number of factors (like quality assurance resources, development time, release engineering constraints) will be considered before this particular change is committed for the GA release.
Reproduced the bug with gdm-2.16.0-19.el5 and verifided the problem has been fixed in gdm-2.16.0-23.el5 on RHEL5-Client-20061207.0 with the following steps: 1. add SystemMenu=false to [greeter] portion of /etc/gdm/custom.conf 2. restart system Result: Restart/Shut Down buttons disappeared.