Screen output stays blank if screen turned off and on again MythbuntuTurn off vsync (Radeon) and create xorg.confPlugging two external screens to laptop via VGA and HDMIIntel HD4000 HDMI and Ubuntu 13.04Belkin HDMI to VGA adapter not displaying / not detectedHDMI External Monitor no longer detected (Ubuntu 16.04)xrandr detect when HDMI tv goes standbyXFCE dual monitors stopped workingXfce4 multi-graphic-card and multi-monitor: placement of desktop iconsIncorrect monitor size acknownlegement ubuntu 16.04Asus X551ca HDMI resolutionLaptop running Ubuntu 18 and Nvidia GPU does not detect HDMI display
Dragon forelimb placement
What are these boxed doors outside store fronts in New York?
Email Account under attack (really) - anything I can do?
Modeling an IPv4 Address
Minkowski space
Python: next in for loop
How is it possible to have an ability score that is less than 3?
The use of multiple foreign keys on same column in SQL Server
How old can references or sources in a thesis be?
What would happen to a modern skyscraper if it rains micro blackholes?
TGV timetables / schedules?
How do we improve the relationship with a client software team that performs poorly and is becoming less collaborative?
Why "Having chlorophyll without photosynthesis is actually very dangerous" and "like living with a bomb"?
Why doesn't H₄O²⁺ exist?
The Two and the One
Why are 150k or 200k jobs considered good when there are 300k+ births a month?
"to be prejudice towards/against someone" vs "to be prejudiced against/towards someone"
Theorems that impeded progress
Why are electrically insulating heatsinks so rare? Is it just cost?
How did the USSR manage to innovate in an environment characterized by government censorship and high bureaucracy?
Did Shadowfax go to Valinor?
Why don't electron-positron collisions release infinite energy?
Today is the Center
How can I prevent hyper evolved versions of regular creatures from wiping out their cousins?
Screen output stays blank if screen turned off and on again Mythbuntu
Turn off vsync (Radeon) and create xorg.confPlugging two external screens to laptop via VGA and HDMIIntel HD4000 HDMI and Ubuntu 13.04Belkin HDMI to VGA adapter not displaying / not detectedHDMI External Monitor no longer detected (Ubuntu 16.04)xrandr detect when HDMI tv goes standbyXFCE dual monitors stopped workingXfce4 multi-graphic-card and multi-monitor: placement of desktop iconsIncorrect monitor size acknownlegement ubuntu 16.04Asus X551ca HDMI resolutionLaptop running Ubuntu 18 and Nvidia GPU does not detect HDMI display
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;
I have a Sony Bravia KDL-40CX520 TV connected to my Mythbuntu box (Ubuntu 16.04.6 LTS) via HDMI. The TV is detected and shows up correctly under Settings-> Display. The box is running an AMD-A4 APU, with open source radeon driver. There is no other graphics card installed.
If the TV is turned on while MythTV is already running, or the TV is turned off and then on again, result is just a blank screen with no video/audio. The only way to restore the display would be to reboot the system while the TV remains on.
I can remote in via ssh and run xrandr. The only difference I see when there is no signal is that the (*) asterisk indicating the current mode disappears:
mythtvuser@mythtv-1:~$ xrandr -display :0.0
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
HDMI-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 886mm x 498mm
1920x1080 60.00*+ 50.00 59.94 30.00 24.00 29.97 23.98
1920x1080i 60.00 50.00 59.94
1280x1024 60.02
1280x720 60.00 50.00 30.00 59.94 29.97 24.00 23.98
1024x768 60.00
800x600 60.32
720x576 50.00
720x576i 50.00
720x480 60.00 59.94
720x480i 60.00 59.94
640x480 60.00 59.94
HDMI-1 disconnected (normal left inverted right x axis y axis)
DVI-0 disconnected (normal left inverted right x axis y axis)
Running:
xrandr --auto
or via ssh:
xrandr --auto -display :0.0
will reset things back to working order.
I'm wondering why the current mode changes to nothing (!) when the TV turns off and what can be done to always force the display setting to stay at 1920x1080?
I thought xorg.conf might work but there is no such file in /etc/X11/ and I'm having the same issue creating it ("no devices to configure. Configuration failed") as detailed in
Turn off vsync (Radeon) and create xorg.conf
So right now, I could implement a workaround, but I'm interested in a fix to the problem itself.
One thing that I have noticed, is the issue only occurs when in graphics mode. If I switch to tty (Ctrl + Alt + 1), I'm able to turn the TV off and on without losing the signal.
I suspect the problem is X related, or there is some desktop configuration option, but not really sure what to do from here. Any advice is appreciated.
xfce hdmi mythbuntu
New contributor
add a comment |
I have a Sony Bravia KDL-40CX520 TV connected to my Mythbuntu box (Ubuntu 16.04.6 LTS) via HDMI. The TV is detected and shows up correctly under Settings-> Display. The box is running an AMD-A4 APU, with open source radeon driver. There is no other graphics card installed.
If the TV is turned on while MythTV is already running, or the TV is turned off and then on again, result is just a blank screen with no video/audio. The only way to restore the display would be to reboot the system while the TV remains on.
I can remote in via ssh and run xrandr. The only difference I see when there is no signal is that the (*) asterisk indicating the current mode disappears:
mythtvuser@mythtv-1:~$ xrandr -display :0.0
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
HDMI-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 886mm x 498mm
1920x1080 60.00*+ 50.00 59.94 30.00 24.00 29.97 23.98
1920x1080i 60.00 50.00 59.94
1280x1024 60.02
1280x720 60.00 50.00 30.00 59.94 29.97 24.00 23.98
1024x768 60.00
800x600 60.32
720x576 50.00
720x576i 50.00
720x480 60.00 59.94
720x480i 60.00 59.94
640x480 60.00 59.94
HDMI-1 disconnected (normal left inverted right x axis y axis)
DVI-0 disconnected (normal left inverted right x axis y axis)
Running:
xrandr --auto
or via ssh:
xrandr --auto -display :0.0
will reset things back to working order.
I'm wondering why the current mode changes to nothing (!) when the TV turns off and what can be done to always force the display setting to stay at 1920x1080?
I thought xorg.conf might work but there is no such file in /etc/X11/ and I'm having the same issue creating it ("no devices to configure. Configuration failed") as detailed in
Turn off vsync (Radeon) and create xorg.conf
So right now, I could implement a workaround, but I'm interested in a fix to the problem itself.
One thing that I have noticed, is the issue only occurs when in graphics mode. If I switch to tty (Ctrl + Alt + 1), I'm able to turn the TV off and on without losing the signal.
I suspect the problem is X related, or there is some desktop configuration option, but not really sure what to do from here. Any advice is appreciated.
xfce hdmi mythbuntu
New contributor
add a comment |
I have a Sony Bravia KDL-40CX520 TV connected to my Mythbuntu box (Ubuntu 16.04.6 LTS) via HDMI. The TV is detected and shows up correctly under Settings-> Display. The box is running an AMD-A4 APU, with open source radeon driver. There is no other graphics card installed.
If the TV is turned on while MythTV is already running, or the TV is turned off and then on again, result is just a blank screen with no video/audio. The only way to restore the display would be to reboot the system while the TV remains on.
I can remote in via ssh and run xrandr. The only difference I see when there is no signal is that the (*) asterisk indicating the current mode disappears:
mythtvuser@mythtv-1:~$ xrandr -display :0.0
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
HDMI-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 886mm x 498mm
1920x1080 60.00*+ 50.00 59.94 30.00 24.00 29.97 23.98
1920x1080i 60.00 50.00 59.94
1280x1024 60.02
1280x720 60.00 50.00 30.00 59.94 29.97 24.00 23.98
1024x768 60.00
800x600 60.32
720x576 50.00
720x576i 50.00
720x480 60.00 59.94
720x480i 60.00 59.94
640x480 60.00 59.94
HDMI-1 disconnected (normal left inverted right x axis y axis)
DVI-0 disconnected (normal left inverted right x axis y axis)
Running:
xrandr --auto
or via ssh:
xrandr --auto -display :0.0
will reset things back to working order.
I'm wondering why the current mode changes to nothing (!) when the TV turns off and what can be done to always force the display setting to stay at 1920x1080?
I thought xorg.conf might work but there is no such file in /etc/X11/ and I'm having the same issue creating it ("no devices to configure. Configuration failed") as detailed in
Turn off vsync (Radeon) and create xorg.conf
So right now, I could implement a workaround, but I'm interested in a fix to the problem itself.
One thing that I have noticed, is the issue only occurs when in graphics mode. If I switch to tty (Ctrl + Alt + 1), I'm able to turn the TV off and on without losing the signal.
I suspect the problem is X related, or there is some desktop configuration option, but not really sure what to do from here. Any advice is appreciated.
xfce hdmi mythbuntu
New contributor
I have a Sony Bravia KDL-40CX520 TV connected to my Mythbuntu box (Ubuntu 16.04.6 LTS) via HDMI. The TV is detected and shows up correctly under Settings-> Display. The box is running an AMD-A4 APU, with open source radeon driver. There is no other graphics card installed.
If the TV is turned on while MythTV is already running, or the TV is turned off and then on again, result is just a blank screen with no video/audio. The only way to restore the display would be to reboot the system while the TV remains on.
I can remote in via ssh and run xrandr. The only difference I see when there is no signal is that the (*) asterisk indicating the current mode disappears:
mythtvuser@mythtv-1:~$ xrandr -display :0.0
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
HDMI-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 886mm x 498mm
1920x1080 60.00*+ 50.00 59.94 30.00 24.00 29.97 23.98
1920x1080i 60.00 50.00 59.94
1280x1024 60.02
1280x720 60.00 50.00 30.00 59.94 29.97 24.00 23.98
1024x768 60.00
800x600 60.32
720x576 50.00
720x576i 50.00
720x480 60.00 59.94
720x480i 60.00 59.94
640x480 60.00 59.94
HDMI-1 disconnected (normal left inverted right x axis y axis)
DVI-0 disconnected (normal left inverted right x axis y axis)
Running:
xrandr --auto
or via ssh:
xrandr --auto -display :0.0
will reset things back to working order.
I'm wondering why the current mode changes to nothing (!) when the TV turns off and what can be done to always force the display setting to stay at 1920x1080?
I thought xorg.conf might work but there is no such file in /etc/X11/ and I'm having the same issue creating it ("no devices to configure. Configuration failed") as detailed in
Turn off vsync (Radeon) and create xorg.conf
So right now, I could implement a workaround, but I'm interested in a fix to the problem itself.
One thing that I have noticed, is the issue only occurs when in graphics mode. If I switch to tty (Ctrl + Alt + 1), I'm able to turn the TV off and on without losing the signal.
I suspect the problem is X related, or there is some desktop configuration option, but not really sure what to do from here. Any advice is appreciated.
xfce hdmi mythbuntu
xfce hdmi mythbuntu
New contributor
New contributor
New contributor
asked 1 min ago
SylvesterSylvester
11
11
New contributor
New contributor
add a comment |
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "89"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sylvester is a new contributor. Be nice, and check out our Code of Conduct.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f1131795%2fscreen-output-stays-blank-if-screen-turned-off-and-on-again-mythbuntu%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Sylvester is a new contributor. Be nice, and check out our Code of Conduct.
Sylvester is a new contributor. Be nice, and check out our Code of Conduct.
Sylvester is a new contributor. Be nice, and check out our Code of Conduct.
Sylvester is a new contributor. Be nice, and check out our Code of Conduct.
Thanks for contributing an answer to Ask Ubuntu!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f1131795%2fscreen-output-stays-blank-if-screen-turned-off-and-on-again-mythbuntu%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown