Description of problem: When using a web browser (Firefox, Chromium), the display while using the Cinnamon desktop occasionally blinks. The monitor is a Sceptre X9, 19-inch LCD, the default resolution is 1280x1024 and cannot go beyond that setting. Per bug 1399870 Comment 1, it is not a Cinnamon bug. Re-submitting under xorg-x11 instead. How reproducible: Launch Cinnamon desktop and use a web browser. Display will occasionally blink. Additional info: In changing the monitor resolution to 1152x864, the display does not blink, it only blinks at the 1280x1024 setting. I also have the MATE desktop installed and at 1280x1024, the display does not blink using MATE, only occurs with Cinnamon. Output of 'lspci -v' from the computer: 00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] RS780 Host Bridge Subsystem: Hewlett-Packard Company Device 2ab7 Flags: bus master, 66MHz, medium devsel, latency 0, NUMA node 0 Capabilities: <access denied> 00:01.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] RS780/RS880 PCI to PCI bridge (int gfx) (prog-if 00 [Normal decode]) Flags: bus master, 66MHz, medium devsel, latency 64, NUMA node 0 Bus: primary=00, secondary=01, subordinate=01, sec-latency=64 I/O behind bridge: 0000c000-0000cfff Memory behind bridge: fe800000-fe9fffff Prefetchable memory behind bridge: 00000000d0000000-00000000dfffffff Capabilities: <access denied> Kernel modules: shpchp 00:07.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] RS780/RS880 PCI to PCI bridge (PCIE port 3) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0, IRQ 24, NUMA node 0 Bus: primary=00, secondary=02, subordinate=02, sec-latency=0 I/O behind bridge: 0000d000-0000dfff Memory behind bridge: fea00000-feafffff Prefetchable memory behind bridge: 00000000fde00000-00000000fdefffff Capabilities: <access denied> Kernel driver in use: pcieport Kernel modules: shpchp 00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 SATA Controller [AHCI mode] (prog-if 01 [AHCI 1.0]) Subsystem: Hewlett-Packard Company Device 2ab7 Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 22, NUMA node 0 I/O ports at b000 [size=8] I/O ports at a000 [size=4] I/O ports at 9000 [size=8] I/O ports at 8000 [size=4] I/O ports at 7000 [size=16] Memory at fe7ffc00 (32-bit, non-prefetchable) [size=1K] Capabilities: <access denied> Kernel driver in use: ahci 00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller (prog-if 10 [OHCI]) Subsystem: Hewlett-Packard Company Device 2ab7 Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 16, NUMA node 0 Memory at fe7fe000 (32-bit, non-prefetchable) [size=4K] Kernel driver in use: ohci-pci 00:12.1 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0 USB OHCI1 Controller (prog-if 10 [OHCI]) Subsystem: Hewlett-Packard Company Device 2ab7 Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 16, NUMA node 0 Memory at fe7fd000 (32-bit, non-prefetchable) [size=4K] Kernel driver in use: ohci-pci 00:12.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller (prog-if 20 [EHCI]) Subsystem: Hewlett-Packard Company Device 2ab7 Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 17, NUMA node 0 Memory at fe7ff800 (32-bit, non-prefetchable) [size=256] Capabilities: <access denied> Kernel driver in use: ehci-pci 00:13.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller (prog-if 10 [OHCI]) Subsystem: Hewlett-Packard Company Device 2ab7 Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 18, NUMA node 0 Memory at fe7fc000 (32-bit, non-prefetchable) [size=4K] Kernel driver in use: ohci-pci 00:13.1 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0 USB OHCI1 Controller (prog-if 10 [OHCI]) Subsystem: Hewlett-Packard Company Device 2ab7 Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 18, NUMA node 0 Memory at fe7f7000 (32-bit, non-prefetchable) [size=4K] Kernel driver in use: ohci-pci 00:13.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller (prog-if 20 [EHCI]) Subsystem: Hewlett-Packard Company Device 2ab7 Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 19, NUMA node 0 Memory at fe7ff400 (32-bit, non-prefetchable) [size=256] Capabilities: <access denied> Kernel driver in use: ehci-pci 00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 SMBus Controller (rev 3c) Subsystem: Hewlett-Packard Company Device 2ab7 Flags: 66MHz, medium devsel, NUMA node 0 Capabilities: <access denied> Kernel driver in use: piix4_smbus Kernel modules: i2c_piix4, sp5100_tco 00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 Azalia (Intel HDA) Subsystem: Hewlett-Packard Company Device 2ab7 Flags: bus master, slow devsel, latency 64, IRQ 16, NUMA node 0 Memory at fe7f0000 (64-bit, non-prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: snd_hda_intel Kernel modules: snd_hda_intel 00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 LPC host controller Subsystem: Hewlett-Packard Company Device 2ab7 Flags: bus master, 66MHz, medium devsel, latency 0, NUMA node 0 00:14.4 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 PCI to PCI Bridge (prog-if 01 [Subtractive decode]) Flags: bus master, 66MHz, medium devsel, latency 64, NUMA node 0 Bus: primary=00, secondary=04, subordinate=04, sec-latency=64 00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h Processor HyperTransport Configuration Flags: fast devsel, NUMA node 0 Capabilities: <access denied> 00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h Processor Address Map Flags: fast devsel, NUMA node 0 00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h Processor DRAM Controller Flags: fast devsel, NUMA node 0 00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h Processor Miscellaneous Control Flags: fast devsel, NUMA node 0 Capabilities: <access denied> Kernel driver in use: k10temp Kernel modules: k10temp 00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h Processor Link Control Flags: fast devsel, NUMA node 0 01:05.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RS780L [Radeon 3000] (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Device 2ab7 Flags: bus master, fast devsel, latency 0, IRQ 18, NUMA node 0 Memory at d0000000 (32-bit, prefetchable) [size=256M] I/O ports at c000 [size=256] Memory at fe9f0000 (32-bit, non-prefetchable) [size=64K] Memory at fe800000 (32-bit, non-prefetchable) [size=1M] [virtual] Expansion ROM at 000c0000 [disabled] [size=128K] Capabilities: <access denied> Kernel driver in use: radeon Kernel modules: radeon 02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06) Subsystem: TP-LINK Technologies Co., Ltd. TG-3468 Gigabit PCI Express Network Adapter Flags: bus master, fast devsel, latency 0, IRQ 25, NUMA node 0 I/O ports at d800 [size=256] Memory at feaff000 (64-bit, non-prefetchable) [size=4K] Memory at fdefc000 (64-bit, prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: r8169 Kernel modules: r8169
At 1152x864, a display window (Gnome terminal, using Cinnamon) also blinked, so this is not limited to a web browser, any window open will blink when using Cinnamon and at multiple display resolutions.
This issue began with Fedora 25. Open windows in Cinnamon did not blink while using Fedora 24.
This message is a reminder that Fedora 25 is nearing its end of life. Approximately 4 (four) weeks from now Fedora will stop maintaining and issuing updates for Fedora 25. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as EOL if it remains open with a Fedora 'version' of '25'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, simply change the 'version' to a later Fedora version. Thank you for reporting this issue and we are sorry that we were not able to fix it before Fedora 25 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora, you are encouraged change the 'version' to a later Fedora version prior this bug is closed as described in the policy above. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete.
Fedora 25 changed to end-of-life (EOL) status on 2017-12-12. Fedora 25 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed.