[Bug 1750393] Re: Blank screen with only mouse pointer after mesa driver update; display does not switch to tty7 upon lightdm start; Xorg.0.log quickly grows
This issue has a workaround: Download 7.9 radeon driver Ubuntu package (xserver-xorg-video-radeon- hwe-16.04_7.9.0-0ubuntu1~16.04.1_amd64.deb) from: https://launchpad.net/ubuntu/xenial/amd64/xserver-xorg-video-radeon- hwe-16.04/1:7.9.0-0ubuntu1~16.04.1 Execute the following on the downloaded .deb file: > sudo dpkg -i xserver-xorg-video-radeon- hwe-16.04_7.9.0-0ubuntu1_16.04.1_amd64.deb > sudo apt-get -f install > sudo apt-mark hold xserver-xorg-video-radeon-hwe-16.04 This downgrades the radeon driver package to version 7.9, fixes dependencies, and holds the driver pkg from further updates. Upon rebooted, issue is resolved. A bug has been reported to Freedesktop at: https://bugs.freedesktop.org/show_bug.cgi?id=105217 ** Bug watch added: freedesktop.org Bugzilla #105217 https://bugs.freedesktop.org/show_bug.cgi?id=105217 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1750393 Title: Blank screen with only mouse pointer after mesa driver update; display does not switch to tty7 upon lightdm start; Xorg.0.log quickly grows To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati-hwe-16.04/+bug/1750393/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1750393] Re: Blank screen with only mouse pointer after mesa driver update; display does not switch to tty7 upon lightdm start; Xorg.0.log quickly grows
Okay, a little code inspection leads to one of these two function calls
failing at line 3062:
if (crtc == ref_crtc) {
if (drmmode_page_flip_target_absolute(pRADEONEnt,
drmmode_crtc,
fb->handle,
flip_flags,
drm_queue_seq,
target_msc) != 0)
goto flip_error;
} else {
if (drmmode_page_flip_target_relative(pRADEONEnt,
drmmode_crtc,
fb->handle,
flip_flags,
drm_queue_seq, 0)
!= 0)
goto flip_error;
}
Next step is gdb attach and setting a break point.
Now, I'm *not* a video driver guru, so, at some point, I'll need
somebody that's in this code regularly to take a look. Thanks. (Or,
maybe I'll get luckly and find a simply error... ;-) )
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Title:
Blank screen with only mouse pointer after mesa driver update; display
does not switch to tty7 upon lightdm start; Xorg.0.log quickly grows
To manage notifications about this bug go to:
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[Bug 1750393] Re: Blank screen with only mouse pointer after mesa driver update; display does not switch to tty7 upon lightdm start; Xorg.0.log quickly grows
Line 3039 in the source can also cause the message:
if (flip_sync == FLIP_ASYNC) {
if (!drmmode_wait_vblank(crtc,
DRM_VBLANK_RELATIVE |
DRM_VBLANK_EVENT,
0, drm_queue_seq,
NULL, NULL))
goto flip_error;
goto next;
}
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https://bugs.launchpad.net/bugs/1750393
Title:
Blank screen with only mouse pointer after mesa driver update; display
does not switch to tty7 upon lightdm start; Xorg.0.log quickly grows
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati-hwe-16.04/+bug/1750393/+subscriptions
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[Bug 1750393] Re: Blank screen with only mouse pointer after mesa driver update; display does not switch to tty7 upon lightdm start; Xorg.0.log quickly grows
Specifically, the source file:
./src/drmmode_display.c:xf86DrvMsg(scrn->scrnIndex, X_WARNING,
"flip queue failed: %s\n",
Line 3093 in the source code of `drmmode_display.c`:
flip_error:
xf86DrvMsg(scrn->scrnIndex, X_WARNING, "flip queue failed: %s\n",
strerror(errno));
error:
if (drm_queue_seq)
radeon_drm_abort_entry(drm_queue_seq);
else if (crtc)
drmmode_flip_abort(crtc, flipdata);
else {
abort(NULL, data);
drmmode_fb_reference(pRADEONEnt->fd, &flipdata->fb, NULL);
free(flipdata);
}
xf86DrvMsg(scrn->scrnIndex, X_WARNING, "Page flip failed: %s\n",
strerror(errno));
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Title:
Blank screen with only mouse pointer after mesa driver update; display
does not switch to tty7 upon lightdm start; Xorg.0.log quickly grows
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati-hwe-16.04/+bug/1750393/+subscriptions
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[Bug 1750393] Re: Blank screen with only mouse pointer after mesa driver update; display does not switch to tty7 upon lightdm start; Xorg.0.log quickly grows
I'll "gdb attach" the Xorg process next and see if I can't get some runtime data. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1750393 Title: Blank screen with only mouse pointer after mesa driver update; display does not switch to tty7 upon lightdm start; Xorg.0.log quickly grows To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati-hwe-16.04/+bug/1750393/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1750393] Re: Blank screen with only mouse pointer after mesa driver update; display does not switch to tty7 upon lightdm start; Xorg.0.log quickly grows
Source of warning message from radeon_drv.so: ./src/drmmode_display.c:xf86DrvMsg(scrn->scrnIndex, X_WARNING, "flip queue failed: %s\n", ./src/radeon_kms.c: xf86DrvMsg(scrn->scrnIndex, X_WARNING, "flip queue failed in %s: %s\n", ./src/radeon_kms.c: xf86DrvMsg(scrn->scrnIndex, X_WARNING, "flip queue failed in %s: %s, " -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1750393 Title: Blank screen with only mouse pointer after mesa driver update; display does not switch to tty7 upon lightdm start; Xorg.0.log quickly grows To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati-hwe-16.04/+bug/1750393/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1750393] Re: Blank screen with only mouse pointer after mesa driver update; display does not switch to tty7 upon lightdm start; Xorg.0.log quickly grows
The warning string in the Xorg.0.log, "flip queue failed", is found in the following driver: /usr/lib/xorg/modules/drivers/radeon_drv.so found in package: xserver-xorg-video-radeon-hwe-16.04 This module is loaded in Xorg on my machine. I'll download the source and start looking through the code. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1750393 Title: Blank screen with only mouse pointer after mesa driver update; display does not switch to tty7 upon lightdm start; Xorg.0.log quickly grows To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati-hwe-16.04/+bug/1750393/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1750393] Re: Blank screen with only mouse pointer after mesa driver update; display does not switch to tty7 upon lightdm start; Xorg.0.log quickly grows
I think something is hosed with the radeon driver in mesa 17.2.8, but I can't find the 17.2.4 pkgs to roll back and test the theory. The 17.2.4 was pulled from updates and proposed lines. I'm hesitant to rollback to 11.2. I can get you anything you need (logs, etc...) look at the issue. I'm a longtime, old school developer. Lived in the 'nix env for about 20 yrs, mostly Solaris. Love Ubuntu and Debian. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1750393 Title: Blank screen with only mouse pointer after mesa driver update; display does not switch to tty7 upon lightdm start; Xorg.0.log quickly grows To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati-hwe-16.04/+bug/1750393/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
