| 1 |
On 2016-08-25, Corbin Bird wrote: |
| 2 |
|
| 3 |
> |
| 4 |
> On 08/25/2016 12:52 PM, Ian Zimmerman wrote: |
| 5 |
> > On 2016-08-22, Adam Carter wrote: |
| 6 |
> > |
| 7 |
> >>> Once or twice per week, when I start X11 (via the startx program), |
| 8 |
> >>> my display goes all black. When it happens there is no way back to |
| 9 |
> >>> a working state: I can see that Xorg is running, I can exit it by |
| 10 |
> >>> hitting Ctl-Alt-Backspace, but even then display does not recover. |
| 11 |
> >>> The only thing I can do is hit Ctl-Alt-Del blindly and reboot, and |
| 12 |
> >>> next time it usually works. |
| 13 |
> >> Have you checked dmesg and syslogs for messages? |
| 14 |
> > Yes. Nothing (significantly) different when this happens. |
| 15 |
> > |
| 16 |
> >> Try a newer kernel and see if it goes away. |
| 17 |
> > I'm reluctant to go there before nailing it down a bit more, since |
| 18 |
> > it only happens intermittently and a newer kernel will quite possibly |
| 19 |
> > introduce other problems. |
| 20 |
> > |
| 21 |
> I don't remember if you specified your appended command-line kernel |
| 22 |
> parameters ( lilo / grub / grub2 ). I have an AMD Phenom II x4 980. The |
| 23 |
> parameters have a major effect on the video ( i.e. AGP / IOMMU usage ). |
| 24 |
> |
| 25 |
> |
| 26 |
|
| 27 |
I have not posted them yet because I didn't suspect they were |
| 28 |
important, but here they are now: |
| 29 |
|
| 30 |
GRUB_CMDLINE_LINUX="rootfstype=ext4" |
| 31 |
|
| 32 |
GRUB_CMDLINE_LINUX_DEFAULT="quiet noresume vt.default_utf8=1 consoleblank=0" |
| 33 |
|
| 34 |
# Uncomment to disable graphical terminal (grub-pc only) |
| 35 |
GRUB_TERMINAL=console |
| 36 |
|
| 37 |
|
| 38 |
I added the consoleblank=0 bit just very recently in the pursuit of this |
| 39 |
bug. It happened without it, too. |
| 40 |
|
| 41 |
The relevant kernel drivers are built as modules. I load fbcon from |
| 42 |
/etc/conf.d/modules, and that seems to be where the switch to graphics |
| 43 |
mode occurs. Note that everything is always okay at this point - |
| 44 |
it just switches to a framebuffer enabled console, with a nice small |
| 45 |
font. The bug, if it happens, happens later, when I start xorg. |
| 46 |
|
| 47 |
Also, I pass no module-specific parameters. The only non-comment line |
| 48 |
in /etc/conf.d/modules is: |
| 49 |
|
| 50 |
modules="fbcon it87" |
| 51 |
|
| 52 |
-- |
| 53 |
Please *no* private Cc: on mailing lists and newsgroups |
| 54 |
Why does the arrow on Hillary signs point to the right? |
Archives