Black screen booting in ubuntu 16.04 and 16.10

Asked Jan 03 '17 at 14:40

Active Jan 03 '17 at 14:40

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My hardware is Mother Board ASUS M5A 78L-M (Graphics Card RS780L [Radeon 3000]) and OS is Ubuntu 16.04

When i boot normally I have an black screen, but when i boot in recovery mode and then i choose “resume” option the system works fine with no problem in graphics mode.

I have tried fix broken packages and installing Ubuntu 16.10 with no changes in behaviour.

What could i do to get more information or boot right?

Thank you

asked Jan 03 '17 at 14:40

user153349

This is an unusual problem, and I don't think it's a duplicate of the usual "black screen" question because it is possible to circumvent the black screen by choosing recovery mode and then resume. – karel Jan 03 '17 at 14:46
When black screen appears there is a windows from monitor hadrware that says "no signal" – user153349 Jan 03 '17 at 20:19
The computer shows rigth the first splash screen to modify BIOS. And "No signal" message appear uast when I try to start normally, not in recovery mode. – user153349 Jan 22 '17 at 09:43
I found in the dmesg output the error [drm:radeon_init [radeon]] ERROR No UMS support in radeon module! and I tried theses two solutions Black screen booting in ubuntu 16.04 and 16.10 and Radeon Graphics Card not working in 16.04 with no success. – user153349 Jan 23 '17 at 08:03
How can I include the dmesg output here? Tnahks. – user153349 Jan 23 '17 at 08:04

Black screen booting in ubuntu 16.04 and 16.10

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