hello, I'd like to report this issue that I am having since I updated my display (samsung U28E590). The amdgpu does not support the native resolution of my new monitor, which is 3840x2160*.* Using a HDMI or DVI connection (I tried both, same results), the maximum supported refresh is 30Hz, so I'm stuck with that (don't have a displayport). The radeon module works fine, I'm having this issue just when I use amdgpu (which I'd like to, because performance is better).
Some info of my hardware:
cpu: AMD A10-7870K Radeon R7, 12 Compute Cores 4C+8G kernel version (I tried different ones and different linux distros, same results!): 5.9.16-200.fc33.x86_64 #1 SMP Mon Dec 21 14:08:22 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux Monitor: Samsung U28E590.
description: If I boot the system using amdgpu and no video mode selection, the system boots but I don't get a screen during boot and in wayland. I can connect using ssh, so the system is running fine, just no display; If I force a full HD resolution with "video:" in the kernel line, I can see the boot process but the screen disappears when wayland starts (because the default resolution is 3840x2160@30Hz). Using a full HD monitor results in no issues, so it must be related to this very 4k resolution.
As I have already stated, radeon module works with the same software/hardware configuration. thanks you so much for your time :-)
Hi
You're probably best reporting the bug here:
https://gitlab.freedesktop.org/drm/amd/-/issues
Attach the output of dmesg from both Radeon and AMDGPU and the compositor / Wayland logs (as you're not using X)
Cheers
Mike
On Sun, 3 Jan 2021, 06:32 Davide Corrado, davide@davidecorrado.eu wrote:
hello, I'd like to report this issue that I am having since I updated my display (samsung U28E590). The amdgpu does not support the native resolution of my new monitor, which is 3840x2160*.* Using a HDMI or DVI connection (I tried both, same results), the maximum supported refresh is 30Hz, so I'm stuck with that (don't have a displayport). The radeon module works fine, I'm having this issue just when I use amdgpu (which I'd like to, because performance is better).
Some info of my hardware:
cpu: AMD A10-7870K Radeon R7, 12 Compute Cores 4C+8G kernel version (I tried different ones and different linux distros, same results!): 5.9.16-200.fc33.x86_64 #1 SMP Mon Dec 21 14:08:22 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux Monitor: Samsung U28E590.
description: If I boot the system using amdgpu and no video mode selection, the system boots but I don't get a screen during boot and in wayland. I can connect using ssh, so the system is running fine, just no display; If I force a full HD resolution with "video:" in the kernel line, I can see the boot process but the screen disappears when wayland starts (because the default resolution is 3840x2160@30Hz). Using a full HD monitor results in no issues, so it must be related to this very 4k resolution.
As I have already stated, radeon module works with the same software/hardware configuration. thanks you so much for your time :-)
-- Davide Corrado UNIX Team Leader
Via Abramo Lincoln, 25 20129 Milano
Tel +39 3474259950 _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx
Cool, thanks!
Il Dom 3 Gen 2021, 12:06 Mike Lothian mike@fireburn.co.uk ha scritto:
Hi
You're probably best reporting the bug here:
https://gitlab.freedesktop.org/drm/amd/-/issues
Attach the output of dmesg from both Radeon and AMDGPU and the compositor / Wayland logs (as you're not using X)
Cheers
Mike
On Sun, 3 Jan 2021, 06:32 Davide Corrado, davide@davidecorrado.eu wrote:
hello, I'd like to report this issue that I am having since I updated my display (samsung U28E590). The amdgpu does not support the native resolution of my new monitor, which is 3840x2160*.* Using a HDMI or DVI connection (I tried both, same results), the maximum supported refresh is 30Hz, so I'm stuck with that (don't have a displayport). The radeon module works fine, I'm having this issue just when I use amdgpu (which I'd like to, because performance is better).
Some info of my hardware:
cpu: AMD A10-7870K Radeon R7, 12 Compute Cores 4C+8G kernel version (I tried different ones and different linux distros, same results!): 5.9.16-200.fc33.x86_64 #1 SMP Mon Dec 21 14:08:22 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux Monitor: Samsung U28E590.
description: If I boot the system using amdgpu and no video mode selection, the system boots but I don't get a screen during boot and in wayland. I can connect using ssh, so the system is running fine, just no display; If I force a full HD resolution with "video:" in the kernel line, I can see the boot process but the screen disappears when wayland starts (because the default resolution is 3840x2160@30Hz). Using a full HD monitor results in no issues, so it must be related to this very 4k resolution.
As I have already stated, radeon module works with the same software/hardware configuration. thanks you so much for your time :-)
-- Davide Corrado UNIX Team Leader
Via Abramo Lincoln, 25 20129 Milano
Tel +39 3474259950 _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx
Hi Davide,
adding a few of our AMD display people.
In general as already suggested by others opening a bug report to track this is the right thing to do.
In the past we had a few bug reports like this because amdgpu is more strict in checking hardware limitations.
For example it can be that your HDMI port on the board can only handle a certain maximum pixel clock, but radeon is ignoring this while amdgpu isn't.
What you can try to do is to manually override the used mode, e.g. copy the modeline used when radeon is active and manually add that using xrandr when amdgpu is active and see if it works or not.
Regards, Christian.
Am 02.01.21 um 19:50 schrieb Davide Corrado:
hello, I'd like to report this issue that I am having since I updated my display (samsung U28E590). The amdgpu does not support the native resolution of my new monitor, which is 3840x2160/./ Using a HDMI or DVI connection (I tried both, same results), the maximum supported refresh is 30Hz, so I'm stuck with that (don't have a displayport). The radeon module works fine, I'm having this issue just when I use amdgpu (which I'd like to, because performance is better).
Some info of my hardware:
cpu: AMD A10-7870K Radeon R7, 12 Compute Cores 4C+8G kernel version (I tried different ones and different linux distros, same results!): 5.9.16-200.fc33.x86_64 #1 SMP Mon Dec 21 14:08:22 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux Monitor: Samsung U28E590.
description: If I boot the system using amdgpu and no video mode selection, the system boots but I don't get a screen during boot and in wayland. I can connect using ssh, so the system is running fine, just no display; If I force a full HD resolution with "video:" in the kernel line, I can see the boot process but the screen disappears when wayland starts (because the default resolution is 3840x2160@30Hz). Using a full HD monitor results in no issues, so it must be related to this very 4k resolution.
As I have already stated, radeon module works with the same software/hardware configuration. thanks you so much for your time :-)
-- Davide Corrado UNIX Team Leader
Via Abramo Lincoln, 25 20129 Milano
Tel +39 3474259950
amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx
Hello. This resolution is supported by the Apu and the motherboard specs. Will try what you suggest and let you know
Il Lun 4 Gen 2021, 12:10 Christian König ckoenig.leichtzumerken@gmail.com ha scritto:
Hi Davide,
adding a few of our AMD display people.
In general as already suggested by others opening a bug report to track this is the right thing to do.
In the past we had a few bug reports like this because amdgpu is more strict in checking hardware limitations.
For example it can be that your HDMI port on the board can only handle a certain maximum pixel clock, but radeon is ignoring this while amdgpu isn't.
What you can try to do is to manually override the used mode, e.g. copy the modeline used when radeon is active and manually add that using xrandr when amdgpu is active and see if it works or not.
Regards, Christian.
Am 02.01.21 um 19:50 schrieb Davide Corrado:
hello, I'd like to report this issue that I am having since I updated my display (samsung U28E590). The amdgpu does not support the native resolution of my new monitor, which is 3840x2160*.* Using a HDMI or DVI connection (I tried both, same results), the maximum supported refresh is 30Hz, so I'm stuck with that (don't have a displayport). The radeon module works fine, I'm having this issue just when I use amdgpu (which I'd like to, because performance is better).
Some info of my hardware:
cpu: AMD A10-7870K Radeon R7, 12 Compute Cores 4C+8G kernel version (I tried different ones and different linux distros, same results!): 5.9.16-200.fc33.x86_64 #1 SMP Mon Dec 21 14:08:22 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux Monitor: Samsung U28E590.
description: If I boot the system using amdgpu and no video mode selection, the system boots but I don't get a screen during boot and in wayland. I can connect using ssh, so the system is running fine, just no display; If I force a full HD resolution with "video:" in the kernel line, I can see the boot process but the screen disappears when wayland starts (because the default resolution is 3840x2160@30Hz). Using a full HD monitor results in no issues, so it must be related to this very 4k resolution.
As I have already stated, radeon module works with the same software/hardware configuration. thanks you so much for your time :-)
-- Davide Corrado UNIX Team Leader
Via Abramo Lincoln, 25 20129 Milano
Tel +39 3474259950
amd-gfx mailing listamd-gfx@lists.freedesktop.orghttps://lists.freedesktop.org/mailman/listinfo/amd-gfx
Btw, should the driver switch to the lower supported resolution then?
Il Lun 4 Gen 2021, 13:04 Davide Corrado davide@davidecorrado.eu ha scritto:
Hello. This resolution is supported by the Apu and the motherboard specs. Will try what you suggest and let you know
Il Lun 4 Gen 2021, 12:10 Christian König ckoenig.leichtzumerken@gmail.com ha scritto:
Hi Davide,
adding a few of our AMD display people.
In general as already suggested by others opening a bug report to track this is the right thing to do.
In the past we had a few bug reports like this because amdgpu is more strict in checking hardware limitations.
For example it can be that your HDMI port on the board can only handle a certain maximum pixel clock, but radeon is ignoring this while amdgpu isn't.
What you can try to do is to manually override the used mode, e.g. copy the modeline used when radeon is active and manually add that using xrandr when amdgpu is active and see if it works or not.
Regards, Christian.
Am 02.01.21 um 19:50 schrieb Davide Corrado:
hello, I'd like to report this issue that I am having since I updated my display (samsung U28E590). The amdgpu does not support the native resolution of my new monitor, which is 3840x2160*.* Using a HDMI or DVI connection (I tried both, same results), the maximum supported refresh is 30Hz, so I'm stuck with that (don't have a displayport). The radeon module works fine, I'm having this issue just when I use amdgpu (which I'd like to, because performance is better).
Some info of my hardware:
cpu: AMD A10-7870K Radeon R7, 12 Compute Cores 4C+8G kernel version (I tried different ones and different linux distros, same results!): 5.9.16-200.fc33.x86_64 #1 SMP Mon Dec 21 14:08:22 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux Monitor: Samsung U28E590.
description: If I boot the system using amdgpu and no video mode selection, the system boots but I don't get a screen during boot and in wayland. I can connect using ssh, so the system is running fine, just no display; If I force a full HD resolution with "video:" in the kernel line, I can see the boot process but the screen disappears when wayland starts (because the default resolution is 3840x2160@30Hz). Using a full HD monitor results in no issues, so it must be related to this very 4k resolution.
As I have already stated, radeon module works with the same software/hardware configuration. thanks you so much for your time :-)
-- Davide Corrado UNIX Team Leader
Via Abramo Lincoln, 25 20129 Milano
Tel +39 3474259950
amd-gfx mailing listamd-gfx@lists.freedesktop.orghttps://lists.freedesktop.org/mailman/listinfo/amd-gfx
Yes, absolutely. Do you only get a black screen?
That would certainly be a rather big bug.
Christian.
Am 04.01.21 um 13:37 schrieb Davide Corrado:
Btw, should the driver switch to the lower supported resolution then?
Il Lun 4 Gen 2021, 13:04 Davide Corrado <davide@davidecorrado.eu mailto:davide@davidecorrado.eu> ha scritto:
Hello. This resolution is supported by the Apu and the motherboard specs. Will try what you suggest and let you know Il Lun 4 Gen 2021, 12:10 Christian König <ckoenig.leichtzumerken@gmail.com <mailto:ckoenig.leichtzumerken@gmail.com>> ha scritto: Hi Davide, adding a few of our AMD display people. In general as already suggested by others opening a bug report to track this is the right thing to do. In the past we had a few bug reports like this because amdgpu is more strict in checking hardware limitations. For example it can be that your HDMI port on the board can only handle a certain maximum pixel clock, but radeon is ignoring this while amdgpu isn't. What you can try to do is to manually override the used mode, e.g. copy the modeline used when radeon is active and manually add that using xrandr when amdgpu is active and see if it works or not. Regards, Christian. Am 02.01.21 um 19:50 schrieb Davide Corrado:hello, I'd like to report this issue that I am having since I updated my display (samsung U28E590). The amdgpu does not support the native resolution of my new monitor, which is 3840x2160/./ Using a HDMI or DVI connection (I tried both, same results), the maximum supported refresh is 30Hz, so I'm stuck with that (don't have a displayport). The radeon module works fine, I'm having this issue just when I use amdgpu (which I'd like to, because performance is better). Some info of my hardware: cpu: AMD A10-7870K Radeon R7, 12 Compute Cores 4C+8G kernel version (I tried different ones and different linux distros, same results!): 5.9.16-200.fc33.x86_64 #1 SMP Mon Dec 21 14:08:22 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux Monitor: Samsung U28E590. description: If I boot the system using amdgpu and no video mode selection, the system boots but I don't get a screen during boot and in wayland. I can connect using ssh, so the system is running fine, just no display; If I force a full HD resolution with "video:" in the kernel line, I can see the boot process but the screen disappears when wayland starts (because the default resolution is 3840x2160@30Hz). Using a full HD monitor results in no issues, so it must be related to this very 4k resolution. As I have already stated, radeon module works with the same software/hardware configuration. thanks you so much for your time :-) -- Davide Corrado UNIX Team Leader Via Abramo Lincoln, 25 20129 Milano Tel +39 3474259950 _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org <mailto:amd-gfx@lists.freedesktop.org> https://lists.freedesktop.org/mailman/listinfo/amd-gfx <https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.freedesktop.org%2Fmailman%2Flistinfo%2Famd-gfx&data=04%7C01%7Cchristian.koenig%40amd.com%7C59d6be6931904c8cc54608d8b0ad907d%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637453606812577161%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=WVyIYAbdsLrXtHu8TLObzx68cXuXoRkr5VPOPT6NwCQ%3D&reserved=0>
[AMD Official Use Only - Internal Distribution Only]
You might try enabling DC (the newer modesetting infrastructure). Append amdgpu.dc=1 to the kernel command line in grub.
Alex
________________________________ From: Davide Corrado davide@davidecorrado.eu Sent: Saturday, January 2, 2021 1:50 PM To: Deucher, Alexander Alexander.Deucher@amd.com Cc: Koenig, Christian Christian.Koenig@amd.com; airlied@linux.ie airlied@linux.ie; daniel@ffwll.ch daniel@ffwll.ch; amd-gfx@lists.freedesktop.org amd-gfx@lists.freedesktop.org; dri-devel@lists.freedesktop.org dri-devel@lists.freedesktop.org; linux-kernel@vger.kernel.org linux-kernel@vger.kernel.org Subject: amdgpu does not support 3840x2160@30Hz on kaveri apu
hello, I'd like to report this issue that I am having since I updated my display (samsung U28E590). The amdgpu does not support the native resolution of my new monitor, which is 3840x2160. Using a HDMI or DVI connection (I tried both, same results), the maximum supported refresh is 30Hz, so I'm stuck with that (don't have a displayport). The radeon module works fine, I'm having this issue just when I use amdgpu (which I'd like to, because performance is better).
Some info of my hardware:
cpu: AMD A10-7870K Radeon R7, 12 Compute Cores 4C+8G kernel version (I tried different ones and different linux distros, same results!): 5.9.16-200.fc33.x86_64 #1 SMP Mon Dec 21 14:08:22 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux Monitor: Samsung U28E590.
description: If I boot the system using amdgpu and no video mode selection, the system boots but I don't get a screen during boot and in wayland. I can connect using ssh, so the system is running fine, just no display; If I force a full HD resolution with "video:" in the kernel line, I can see the boot process but the screen disappears when wayland starts (because the default resolution is 3840x2160@30Hz). Using a full HD monitor results in no issues, so it must be related to this very 4k resolution.
As I have already stated, radeon module works with the same software/hardware configuration. thanks you so much for your time :-)
-- Davide Corrado UNIX Team Leader
Via Abramo Lincoln, 25 20129 Milano
Tel +39 3474259950
SOLVED
I opened a ticket here:
https://gitlab.freedesktop.org/drm/amd/-/issues/1425
and they suggested, at the end, the same hint (amdgpu.dc=1).
... which, I was sure, I already tried with no results. Maybe I just misspelled it, and it didn't work.
It's working now, thank you so much for your help.
On Mon, Jan 4, 2021 at 3:01 PM Deucher, Alexander Alexander.Deucher@amd.com wrote:
[AMD Official Use Only - Internal Distribution Only]
You might try enabling DC (the newer modesetting infrastructure). Append amdgpu.dc=1 to the kernel command line in grub.
Alex
*From:* Davide Corrado davide@davidecorrado.eu *Sent:* Saturday, January 2, 2021 1:50 PM *To:* Deucher, Alexander Alexander.Deucher@amd.com *Cc:* Koenig, Christian Christian.Koenig@amd.com; airlied@linux.ie < airlied@linux.ie>; daniel@ffwll.ch daniel@ffwll.ch; amd-gfx@lists.freedesktop.org amd-gfx@lists.freedesktop.org; dri-devel@lists.freedesktop.org dri-devel@lists.freedesktop.org; linux-kernel@vger.kernel.org linux-kernel@vger.kernel.org *Subject:* amdgpu does not support 3840x2160@30Hz on kaveri apu
hello, I'd like to report this issue that I am having since I updated my display (samsung U28E590). The amdgpu does not support the native resolution of my new monitor, which is 3840x2160*.* Using a HDMI or DVI connection (I tried both, same results), the maximum supported refresh is 30Hz, so I'm stuck with that (don't have a displayport). The radeon module works fine, I'm having this issue just when I use amdgpu (which I'd like to, because performance is better).
Some info of my hardware:
cpu: AMD A10-7870K Radeon R7, 12 Compute Cores 4C+8G kernel version (I tried different ones and different linux distros, same results!): 5.9.16-200.fc33.x86_64 #1 SMP Mon Dec 21 14:08:22 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux Monitor: Samsung U28E590.
description: If I boot the system using amdgpu and no video mode selection, the system boots but I don't get a screen during boot and in wayland. I can connect using ssh, so the system is running fine, just no display; If I force a full HD resolution with "video:" in the kernel line, I can see the boot process but the screen disappears when wayland starts (because the default resolution is 3840x2160@30Hz). Using a full HD monitor results in no issues, so it must be related to this very 4k resolution.
As I have already stated, radeon module works with the same software/hardware configuration. thanks you so much for your time :-)
-- Davide Corrado UNIX Team Leader
Via Abramo Lincoln, 25 20129 Milano
Tel +39 3474259950
dri-devel@lists.freedesktop.org
-
Christian König -
Christian König -
Davide Corrado -
Deucher, Alexander -
Mike Lothian